KR101754487B1 - Apparatus using wwc for calculating physical property of carbon dioxide absorbent and method for calculating physical property of carbon dioxide absorbent using the same - Google Patents

Abstract

The present invention relates to a carbon dioxide sorbent material property calculating apparatus and a carbon dioxide sorbent material property calculating method. More particularly, the present invention relates to a carbon dioxide sorbent material calculating apparatus capable of finding a carbon dioxide sorbent suitable for absorbing carbon dioxide using a small amount of carbon dioxide sorbent And a method for calculating properties of a carbon dioxide absorbent. To this end, the carbon dioxide sorbent material property calculation apparatus includes a wetted wall column for contacting the carbon dioxide sorbent solution and the carbon dioxide-containing gas so that the carbon dioxide sorbent solution absorbs the carbon dioxide in the carbon dioxide-containing gas; And a calculator for calculating physical properties of the carbon dioxide absorbent, wherein the calculating unit comprises: an absorption and removal rate calculating unit for calculating carbon dioxide absorption and removal rates of the carbon dioxide absorbent solution by continuously changing loading; A viscosity calculating unit for calculating the viscosity of the carbon dioxide absorbent solution at the time of carbon dioxide loading by continuously changing loading; An absorption heat calculation unit for calculating the absorption heat of the carbon dioxide absorbent solution by continuously changing loading; And a pH calculating unit for calculating the pH of the carbon dioxide absorbent solution from continuously changing loading; And the like.

Description

Technical Field [0001] The present invention relates to a carbon dioxide absorber property calculating apparatus using a cane tower and a carbon dioxide absorber property calculating method using the same. [0001] The present invention relates to a carbon dioxide absorber property calculating apparatus using a cane tower,

The present invention relates to a carbon dioxide sorbent material property calculating apparatus and a carbon dioxide sorbent material property calculating method. More particularly, the present invention relates to a carbon dioxide sorbent material calculating apparatus capable of finding a carbon dioxide sorbent suitable for absorbing carbon dioxide using a small amount of carbon dioxide sorbent And a method for calculating properties of a carbon dioxide absorbent.

The wet capture process is the most promising technology for treating CO ₂ contained in the flue gas of power plants, one of the major sources of high CO ₂ emissions. Research on wet capture techniques is currently focused on process improvement studies such as low cost sorbent development studies, intercooling of absorbers, and lean vapor recompression of demoulding towers.

Among them, research on the development of sorbents is to find sorbents with a high absorption rate to reduce the energy requirement and equipment cost in the collection in order to lower the operating cost of the process. To do this, it is necessary to study the properties of the absorber in the absorber and stripping tower. That is, it is necessary to derive thermodynamic properties such as vapor-liquid equilibrium (VLE) and reaction heat for CO ₂ loaded adsorbent, and transfer properties such as absorption rate and viscosity through experiments.

Wetted wall column (WWC) is widely used as one of the methods for measuring the absorption rate of the above absorbent properties. This is a device for measuring the absorption rate by making a certain surface area by flowing a liquid to the outer wall of the tube, allowing the gas containing CO ₂ to flow out of the tube, and causing gas and liquid to contact with each other at a certain surface area.

A physical property calculating device used to measure the absorption rate of the absorbent loaded in many research groups is shown in Fig. The liquid is introduced into the WWC through a pump by putting excess absorbent into the solution reservoir and circulating it as a whole. The gas is introduced into the WWC by changing the CO ₂ concentration of the mixed gas of CO ₂ and N ₂ (0 to 20%, 0 to 20 kPa with a partial pressure of CO ₂ ) by controlling the flow rate with a mass flow controller (MFC) After passing through the water removal process, the concentration is measured through a CO ₂ sensor. The CO ₂ absorption or removal of gas in the WWC can be calculated by the difference between the gas in the WWC and the gas out in WWC. At this time, because the excess absorbent is used, the loading change of the absorbent due to absorption and removal in WWC is ignored. As shown in Fig. 2 (Fig. 2), data analysis is performed by collecting experimental results of various points by changing CO ₂ concentration of gas introduced into WWC, and mass transfer coefficient, which is called absorption rate, is obtained.

The absorption rate of the absorbent is a function of the loading and temperature of the absorbent. Experiments are therefore required at various loading and temperature. It is usually necessary to have an absorption rate of five different loading states at one temperature. For one experiment, the required amount of absorbent is about 0.6 ~ 3L. If two temperature conditions are used, 10 ~ experiments are required. Therefore, 6 ~ 30L of solution is used, so a very large amount of absorbent is required. In addition, since the experiment is carried out by changing the CO ₂ concentration of the gas (gas in) supplied at about 6 points of WWC for one experimental condition, not only a lot of time and man power are required but also the absorption at a specific loading value Only speed was available.

Unlike the conventional method, the amount of carbon dioxide absorbent solution was reduced, and the concentration of gas in the WWC was continuously measured while the concentration of gas in the WWC was fixed. In this way, the loading of the solution can be grasped in real time through the changing CO ₂ concentration as the absorbent is absorbed or removed. However, in this method, only the absorption rate of the absorbent solution not loaded with carbon dioxide and the removal rate of the absorbent solution loaded with carbon dioxide were analyzed, and the absorption rate in the state where the carbon dioxide required for the actual absorption tower behavior was loaded was unknown.

As described above, the existing apparatus and method for calculating physical properties using WWC requires a large amount of absorbent, time and attraction to measure the absorption rate of the loaded absorbent, and when the amount of the absorbent is reduced, It is impossible to understand the properties of the absorbent in the actual absorption tower loading state.

 Graeme Puxty, Robert Rowland, Moetaz Attalla, 2009, Comparison of the rates of CO2 absorption into aqueous ammonia and monoethanolamine.  (25 to 80) ℃, and the concentration of monoethanolamine + Water + Carbon dioxide form (25 to 80 ℃).  Inna Kim and Hallvard F.Svendsen, 2007, Heat of absorption of carbon dioxide (CO 2) in monoethanolamine (MEA) and 2- (Aminoethyl) ethanolamine (AEEA) solutions.  DEA, TEA, and AMP solutions. In this study, we investigated the effect of MEA, DEA, TEA, and AMP solutions on carbon dioxide absorption in aqueous solutions.  Fang-Yuan Jou, Fredrick D. Otto, and Alan E. Mather, 1994, Vapor-Liquid Equilibrium of Carbon Dioxide in an Aqueous Mixture of Monoethanolamine and Methyldiethanolamine.

DISCLOSURE OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to provide a method and an apparatus for absorbing and removing carbon dioxide of an absorbent in continuously changing carbon dioxide loading, And a method of calculating the properties of the carbon dioxide absorbent.

These and other objects and advantages of the present invention will become apparent from the following description of a preferred embodiment.

This object is achieved by a method for producing a carbon dioxide absorbing material comprising: a wetted wall column for contacting a carbon dioxide absorbing solution with a carbon dioxide-containing gas so as to absorb carbon dioxide in the carbon dioxide-containing gas; And a calculator for calculating a physical property of the carbon dioxide absorbent, wherein the calculating unit comprises: an absorption and removal rate calculation unit for calculating the carbon dioxide absorption and removal rate of the carbon dioxide absorbent solution by continuously changing loading; A viscosity calculating unit that calculates the viscosity of the carbon dioxide absorbent solution at the time of loading of carbon dioxide in continuously changing loading; An absorption heat calculation unit for calculating the absorption heat of the carbon dioxide absorbent solution in continuously changing loading; And a pH calculator for calculating the pH of the carbon dioxide absorbent solution from continuously changing loading; The carbon dioxide absorbent properties can be obtained by using the carbon dioxide absorbent properties calculating device.

Preferably, the tufted tower comprises a tube 1 supplied with a carbon dioxide absorbent solution; A tube 2 having a diameter larger than that of the tube 1 and positioned outside the tube 1; And a heat insulating material disposed between the tubes 1 and 2.

Preferably, the absorption and removal rate calculation unit includes: a carbon dioxide transport flux calculation unit for calculating a carbon dioxide transport flux through which the carbon dioxide is absorbed through the carbon dioxide concentration difference between before and after passing through the wall piercing tower; A carbon dioxide amount calculation unit for integrating the calculated carbon dioxide transfer flux with respect to time to calculate an amount of the carbon dioxide absorbed from the gas to the liquid; A carbon dioxide loading calculation unit for calculating a carbon dioxide loading value using the weight of the carbon dioxide absorbent solution initially supplied; A carbon dioxide partial pressure calculation unit for calculating the carbon dioxide partial pressure using the calculated carbon dioxide loading value and the VLE data of the carbon dioxide absorbent; And an overall mass transfer coefficient calculation unit for calculating a global mass transfer coefficient through calculation values of the carbon dioxide transfer flux calculation unit, the carbon dioxide amount calculation unit, the carbon dioxide loading calculation unit, and the carbon dioxide partial pressure calculation unit.

Preferably, the viscosity calculator includes: a pressure difference calculator that calculates a pressure difference that occurs when the carbon dioxide absorbent solution passes through a predetermined section before being supplied to the wall tower; A flow rate calculator for calculating a flow rate of the carbon dioxide absorbent solution; And a viscosity calculator for calculating the viscosity at the time of loading the carbon dioxide through the calculated values of the pressure difference calculator and the flow calculator.

Preferably, the absorption heat calculation unit comprises: a supply energy calculation unit for calculating enthalpy of the carbon dioxide absorbent solution and the gas supplied to the hearth tower; An emission energy calculation unit for calculating the enthalpy of the carbon dioxide absorbent solution and the gas emitted from the sill tower; And an absorption column calculation unit for calculating an absorption column of the carbon dioxide absorbent solution through the calculated values of the supply energy calculation unit and the emission energy calculation unit.

Preferably, the pH calculator can calculate the pH upon carbon dioxide loading from the measured value at the pH meter.

The above object can also be achieved by a method for producing a carbon dioxide absorbing agent, comprising the steps of: contacting a carbon dioxide absorbent solution and a carbon dioxide-containing gas in a wetted wall column so that the carbon dioxide absorbent solution absorbs carbon dioxide in the carbon dioxide- And calculating a physical property of the carbon dioxide absorbent, wherein the calculating step includes: an absorption and removal rate calculation step of calculating the carbon dioxide absorption and removal rate of the carbon dioxide absorbent solution in a continuously changing loading; A viscosity calculating step of calculating a viscosity of the carbon dioxide absorbent solution at the time of carbon dioxide loading by continuously changing loading; An absorption heat calculation step of calculating the absorption heat of the carbon dioxide absorbent solution in a continuously changing loading; And a pH calculating step of calculating the pH of the carbon dioxide absorbent solution from continuously changing loading; And the carbon dioxide absorbent may be at least one of the following:

Preferably, the step of calculating the absorption and removal rates comprises calculating a carbon dioxide transfer flux at which the carbon dioxide is absorbed through the carbon dioxide concentration difference between before and after passing through the wall pile; Calculating a carbon dioxide amount to integrate the calculated carbon dioxide transfer flux with respect to time to calculate an amount of carbon dioxide absorbed from the gas to the liquid; A carbon dioxide loading calculation step of calculating a carbon dioxide loading value using the weight of the initially supplied carbon dioxide absorbent solution; A carbon dioxide partial pressure calculation step of calculating a carbon dioxide partial pressure using the calculated carbon dioxide loading value and VLE data of the carbon dioxide absorbent; And an overall mass transfer coefficient calculation step of calculating a global mass transfer coefficient through calculation values of the carbon dioxide transfer flux calculation step, the carbon dioxide amount calculation step, the carbon dioxide loading calculation step, and the carbon dioxide partial pressure calculation step.

Preferably, the viscosity calculating step includes: a pressure difference calculating step of calculating a pressure difference occurring when the carbon dioxide absorbent solution passes through a predetermined section before being supplied to the wall tower; A flow rate calculating step of calculating a flow rate of the carbon dioxide absorbent solution; And a viscosity calculation step of calculating the viscosity at the time of carbon dioxide loading through the calculated values of the pressure difference calculation step and the flow calculation step.

Preferably, the absorption heat calculation step includes: a supply energy calculation step of calculating enthalpy of the carbon dioxide absorbent solution and the gas supplied to the hearth tower; An emission energy calculation step of calculating the enthalpy of the carbon dioxide absorbent solution and the gas emitted from the sill tower; And an absorption column calculation step of calculating an absorption column of the carbon dioxide absorbent solution through the calculation values of the supply energy calculation step and the emission energy calculation step.

Preferably, the pH calculating step is capable of calculating the pH upon carbon dioxide loading from the measured value at the pH meter.

According to the present invention, an absorbent suitable for carbon dioxide absorption can be obtained by calculating physical properties such as carbon dioxide absorption and removal rate, viscosity, absorption heat and pH of a carbon dioxide absorbent in continuously changing loading with a small amount of absorbent, It has an effect that can be found.

However, the effects of the present invention are not limited to the above-mentioned effects, and other effects not mentioned can be clearly understood by those skilled in the art from the following description.

BRIEF DESCRIPTION OF DRAWINGS FIG. 1 is a schematic view showing an example of a conventional carbon dioxide absorbent properties calculating apparatus. FIG.
2 is a graph showing actual data of a conventional carbon dioxide sorbent material property calculating apparatus and flux calculated between a gas and a liquid by a log mean function at the upper and lower portions of a pile tower.
3 is a schematic view of a carbon dioxide sorbent property calculating apparatus according to an embodiment of the present invention.
FIG. 4 is a schematic view showing a burr wall of a carbon dioxide absorbent property calculating apparatus according to an embodiment of the present invention. FIG.
5 is an enlarged view of a portion A in Fig.
6 is a block diagram schematically showing an absorption and removal rate calculation unit of the carbon dioxide sorbent property calculation apparatus according to an embodiment of the present invention.
7 is a block diagram schematically showing a viscosity calculating unit of the carbon dioxide absorbent properties calculating apparatus according to an embodiment of the present invention.
FIG. 8 is a block diagram schematically showing an absorption column calculation unit of the carbon dioxide sorbent property calculation apparatus according to an embodiment of the present invention.
9 is a graph (MEA 30 wt%) showing raw data of the absorption and removal rate calculation unit of the carbon dioxide absorbent properties calculation apparatus according to an embodiment of the present invention.
10 is a graph (MEA 30 wt%, 40 DEG C) showing VLE data used in the carbon dioxide partial pressure calculation unit of the carbon dioxide sorbent property calculation apparatus according to an embodiment of the present invention.
11 is a graph (MEA 30 wt%, 40 DEG C) showing absorption rate data calculated through the apparatus for calculating the properties of a carbon dioxide absorbent according to an embodiment of the present invention.
12 is a graph (MEA 30 wt%, 60 DEG C) showing the absorption rate data calculated through the carbon dioxide absorbent properties calculating apparatus according to an embodiment of the present invention.
13 is a graph (MEA 30 wt%, 40 DEG C) showing viscosity data calculated through the carbon dioxide absorber property calculating apparatus according to an embodiment of the present invention.
14 is a graph (MEA 30 wt%, 40 DEG C) showing absorption column data calculated through the apparatus for calculating the properties of a carbon dioxide absorbent according to an embodiment of the present invention.
15 is a graph (MEA 30 wt%, 40 DEG C) showing pH data calculated through the apparatus for calculating the properties of a carbon dioxide absorbent according to an embodiment of the present invention.

The foregoing and further aspects are embodied through the embodiments described with reference to the accompanying drawings. It is to be understood that the components of each embodiment are capable of various combinations within an embodiment as long as no other mention or mutual contradiction exists. Furthermore, the proposed invention may be embodied in many different forms and is not limited to the embodiments described herein.

In order to clearly illustrate the claimed invention, parts not related to the description are omitted, and like reference numerals are used for like parts throughout the specification. And, when a section is referred to as "including " an element, it does not exclude other elements unless specifically stated to the contrary. As used herein, the term "part " means a block in which a system of hardware or software is configured to be changed or pluggable, that is, a unit or a block that performs a specific function in hardware or software.

In the present specification, monoethanolamine (MEA) is used as an absorbent, and the present invention will be mainly described, but the present invention is not limited thereto.

As shown in FIG. 3, which schematically shows the apparatus for calculating the properties of a carbon dioxide absorbent according to an embodiment of the present invention, the carbon dioxide absorbent properties calculation apparatus 1 according to an aspect of the present invention is characterized in that the carbon dioxide absorbent solution contains carbon dioxide A wetted wall column (WWC) 100 for bringing the carbon dioxide absorbent solution and the carbon dioxide-containing gas into contact with each other; And a calculation unit 200 for calculating the physical properties of the carbon dioxide absorbent. The calculation unit 200 includes an absorption and removal rate calculation unit 210 for calculating the carbon dioxide absorption and removal rates of the carbon dioxide absorbent solution by continuously changing loading ); A viscosity calculating unit 220 that calculates the viscosity of the carbon dioxide absorbent solution at the time of loading of carbon dioxide in a continuously changing loading; An absorption heat calculation unit (230) for calculating the absorption heat of the carbon dioxide absorbent solution in a continuously changing loading; And a pH calculating unit 240 for calculating the pH of the carbon dioxide absorbent solution by continuously changing loading; And the like.

Preferably, a gas supply device 300 for supplying a carbon dioxide-containing gas to a water saturator, a water saturator 400 for mixing water and a carbon dioxide-containing gas, an absorbent A liquid reservoir 500 for storing the solution, a pump 600 for discharging the absorbent solution stored in the liquid reservoir 500 at a constant flow rate, a liquid flow meter for measuring the flow rate of the absorbent solution supplied from the pump 600, (liquid flowmeter) 700, a pipe through which the absorbent solution supplied from the pump 600 is moved. In the predetermined section, a transfer pipe having a small diameter, a pressure lowered before and after a predetermined section having a small diameter of the transfer pipe, An oven 900 that keeps the temperature of the entire apparatus constant such as a differential pressure gauge 800 for measuring a water content, a water saturator 400, a liquid reservoir 500, And may further include a carbon dioxide sensor 950 that determines the concentration of the carbon dioxide.

As shown in FIG. 4, which schematically shows the buried wall tower 100 of the carbon dioxide absorbent properties calculation apparatus according to one embodiment of the present invention, the buried wall tower 100 includes a carbon dioxide absorbent solution, A tube 2 120 having a diameter larger than that of the first tube 110 and a first tube 110 and a heat insulating material 130 disposed between the first tube 110 and the second tube 120, .

The tube 1 110 may be made of stainless steel (SUS), and the carbon dioxide absorbent solution transported by the pump 600 may be supplied into the wall tower 100. The carbon dioxide absorbent solution supplied through the tube 1 110 passes through the tube 2 120 and then passes through the tube wall 120 along the tube outer wall. And flows downward. At this time, the carbon dioxide-containing gas is supplied to the inside of the wick tower 100 through a gas hole 160 provided in the lower part of the wick tower 100, ) Of the carbon dioxide absorbent solution flowing down along the outer wall of the carbon dioxide absorbent. The carbon dioxide absorbent solution contacts the carbon dioxide-containing gas to absorb gaseous carbon dioxide. Preferably, the diameter of tube 1 (110) is 1/4 inch and the diameter of tube 2 (120) is 1/2 inch.

The heat insulating material 130 is installed between the tube 110 and the tube 120 and serves to insulate the inside and outside of the tube 120. This is to calculate the absorption heat of the carbon dioxide absorbent. That is, in order to calculate the absorption heat of the carbon dioxide absorbent, there should be no heat loss in the control volume 140 in the pierced tower 100. Heat transfer occurs mainly in the tube 2 (120) ) Teflon, which has low heat transfer coefficient and is not reactive with absorbent, is used to insulate the inside and outside. The present invention will be described by taking Teflon as an example of the heat insulating material. However, it is also possible to use another heat insulating material as long as the heat transfer coefficient is small and it is not reactive with the absorbent, like Teflon. As described later, it is possible to calculate the absorption heat of the carbon dioxide absorbent through the energy equation after setting the heat loss free.

Referring to FIG. 3, the operational flow of the carbon dioxide absorber apparatus according to one embodiment of the present invention will be briefly described. First, an oven 900 is used to maintain the temperature of the entire system at a constant temperature. The carbon dioxide absorbent solution prepared by adding 120 ml of an absorbent (monoethanolamine, MEA) to a liquid reservoir is circulated through the pillared tower 100 using a pulsation-free metering pump 600. The liquid in the suture tower (100) passes through the 1/2 inch SUS tube (tube 2) and forms a wet wall out of the tube and falls from top to bottom. Gas is N _2, CO ₂ allows to use a gas mixture, the concentration of CO ₂ fixed in 15% (% CO ₂ in) and control the flow rate by a mass flow meter (MFC) (960) and flowing. The water saturates in the water saturator before being fed to the wall tower 100 and is introduced into the bottom of the wall tower 100. The liquid falling from the top to the bottom and the gas flowing from the bottom to the bottom in the sidewall 100 are in contact with each other at a constant surface area, resulting in CO ₂ absorption. In order to adjust the flow rate of the carbon dioxide sensor (1 SLM), the concentration of the carbon dioxide sensor 950 is measured by passing a condenser and a calcium chloride column through a column of the wall tower 100 to remove water in the gas. , The gas is released before introduction into carbon dioxide (% CO ₂ out).

According to the above-mentioned operation flow, necessary data can be collected with a small amount of carbon dioxide absorbent, and from these data, physical properties such as carbon dioxide absorption and removal rate, viscosity, absorption heat and pH, which are physical properties of carbon dioxide absorbent, can be calculated quickly. In other words, conventionally, even if a large amount of carbon dioxide absorbent is used, only the physical properties of the absorbent at a specific loading value can be obtained. However, according to the present invention, the physical properties of the carbon dioxide absorbent can be calculated with a small amount. Hereinafter, the calculation unit for calculating the respective properties will be described in detail.

In one embodiment, the calculation unit 200 for calculating the physical properties of the carbon dioxide absorbent includes an absorption and removal rate calculation unit (hereinafter, referred to as " absorption and removal rate calculation unit ") for calculating the carbon dioxide absorption and removal rate of the carbon dioxide absorbent solution by continuously changing loading 210); A viscosity calculating unit 220 that calculates the viscosity of the carbon dioxide absorbent solution at the time of loading of carbon dioxide in a continuously changing loading; An absorption heat calculation unit (230) for calculating the absorption heat of the carbon dioxide absorbent solution in a continuously changing loading; And a pH calculating unit 240 for calculating the pH of the carbon dioxide absorbent solution by continuously changing loading; Or the like.

6 is a block diagram schematically showing the absorption and removal speed calculation unit, and the absorption and removal speed calculation unit will be described with reference to FIG. In one embodiment, the absorption and removal rate calculation unit 210 calculates carbon dioxide absorption and removal rates in continuously changing carbon dioxide loading while using a small amount of carbon dioxide absorbent, A carbon dioxide transfer flux calculation unit 211 for calculating a carbon dioxide transfer flux through which the carbon dioxide is absorbed through the carbon dioxide concentration difference; A carbon dioxide amount calculation unit 212 for integrating the calculated carbon dioxide transfer flux with respect to time to calculate an amount of the carbon dioxide absorbed from the gas into the liquid; A carbon dioxide loading calculation unit 213 for calculating a carbon dioxide loading value using the weight of the initially supplied carbon dioxide absorbent solution; A carbon dioxide partial pressure calculation unit 214 for calculating the carbon dioxide partial pressure using the calculated carbon dioxide loading value and the VLE data of the carbon dioxide absorbent; And an overall mass transfer coefficient calculation unit 215 for calculating the overall mass transfer coefficient through the calculation values of the carbon dioxide transfer flux calculation unit, the carbon dioxide amount calculation unit, the carbon dioxide loading calculation unit, and the carbon dioxide partial pressure calculation unit. The overall mass transfer coefficient (K _G ) is a measure to determine the absorption and removal rates. A large overall mass transfer coefficient means that the absorption and removal rates are fast. On the other hand, the low overall mass transfer coefficients means that the absorption and removal rates Is slow. That is, the present invention can calculate the carbon dioxide absorption and removal rate by measuring the overall mass transfer coefficient of the carbon dioxide absorbent.

The raw data is the carbon dioxide concentration of the gas out (see FIG. 9). Over time, as the absorbent becomes more and more loaded, the rate of absorption and removal decreases and the concentration of carbon dioxide in the gas out increases.

The carbon dioxide transfer flux calculation unit 211 may calculate the carbon dioxide concentration difference between the gas before and after the sludge tower 100 and calculate the carbon dioxide concentration using the ideal gas state equation.

(1)

는 이산화탄소 전달 플럭스(flux), P는 압력, Q_gas는 가스 유량, A는 기-액 접촉면적, R은 기체상수, T는 온도, %CO₂ ⁱⁿ은 누벽탑에 공급되는 CO₂ 농도, %CO₂ ^out은 누벽탑에서 방출되는 CO₂ 농도를 의미한다.From here,

Carbon dioxide transfer flux (flux), P is the pressure, Q _gas is the gas flow rate, A is the gas-liquid contact area, R is the gas constant, T is the temperature,% CO ₂ ⁱⁿ the CO ₂ concentration to be supplied to the press byeoktap,% CO ₂ ^out means the CO ₂ concentration emitted from the pylon.

The carbon dioxide amount calculation unit 212 may calculate the amount of carbon dioxide absorbed into the liquid in the gas up to a specific time by integrating the calculated carbon dioxide transfer flux with respect to time according to Equation (2). That is, since the sampling time of the basic data is 1 second, the integral form of the continuous function with respect to the time of the following equation (2) can be numerically calculated using data recorded every sampling time.

(2)

는 이산화탄소 흡수량, k는 k번째 데이터, h는 샘플링 타임(sampling time), m은 t시간까지 데이터(data) 개수이고, t=m*h를 의미한다. 그 외 수학식 1과 중복되는 내용은 생략한다.From here,

K is the kth data, h is the sampling time, m is the number of data up to t time, and t = m * h. The contents overlapping with the formula (1) are omitted.

The carbon dioxide loading calculation unit may calculate the carbon dioxide loading value up to a specific time according to Equation (3) using the weight of the initially supplied absorbent solution.

(3)

는 이산화탄소 로딩 값,

은 흡수제의 아민 몰 수를 의미하고, 그 외 수학식 1 및 2와 중복되는 내용은 생략한다.From here,

The carbon dioxide loading value,

Quot; means the number of moles of amine in the absorbent, and the contents overlapping with the equations (1) and (2) are omitted.

The carbon dioxide partial pressure calculation unit 214 assumes a pseudo equilibrium state at every moment with respect to the absorbent absorbing carbon dioxide, calculates the carbon dioxide loading value calculated by the equation (3) and the VLE data of the absorbent at the experiment temperature The following equation (4) can be established to calculate the carbon dioxide partial pressure.

(4)

는 이산화탄소를 흡수한 흡수제의 평형 이산화탄소 분압을 의미하고, 그 외 수학식 1 내지 3과 중복되는 내용은 생략한다.From here,

Means the equilibrium carbon dioxide partial pressure of the absorbent absorbing carbon dioxide, and the contents overlapping with the other equations (1) to (3) will be omitted.

The overall mass transfer coefficient calculation unit 215 calculates the overall mass transfer coefficient according to the following equation (5) through the values and the data calculated by the above-described equations (1) to (4) Able to know.

(5)

은 WWC로 공급되는 이산화탄소 분압, LM은 log mean을 의미하고, 그 외 수학식 1 내지 4와 중복되는 내용은 생략한다.Where K _G is the overall mass transfer coefficient,

The carbon dioxide partial pressure supplied to the WWC, and LM mean the log mean, and the contents overlapping with the other equations (1) to (4) will be omitted.

Fig. 11 (MEA 40 ° C) and Fig. 12 (MEA 60 ° C) show the relationship between the absorption rate calculated from the absorption and removal rate calculation unit of the carbon dioxide sorbent property calculation apparatus according to an embodiment of the present invention, (Puxty, 2009), which is the calculated value of absorption rate. As can be seen from Figs. 11 and 12, the present invention not only obtains results with a conventional value and an error within 5% even if only a small amount of absorbent is used, And it can be seen that it can save a lot of time, manpower and cost.

7 is a block diagram schematically showing the viscosity calculating section, and the viscosity calculating section will be described with reference to FIG. In one embodiment, the viscosity calculating unit 220 calculates the viscosity at the time of continuously changing carbon dioxide, and calculates the pressure difference that occurs when the carbon dioxide absorbent solution passes through a predetermined section before being supplied to the wall tower. A pressure difference calculator 221; A flow rate calculation unit 222 for calculating a flow rate of the carbon dioxide absorbent solution; And a viscosity calculator 223 for calculating the viscosity at the time of carbon dioxide loading through the calculated values of the pressure difference calculator and the flow calculator.

A portion of FIG. 3 is enlarged and described in more detail with reference to FIG. The transfer pipe 810 is a pipe through which the absorbent solution supplied to the WWC passes, and may be a pipe whose diameter is about half as small as other parts of the pipe.

The pressure difference calculator 221 calculates a pressure difference generated when the carbon dioxide absorbent solution passes through a predetermined section before being supplied to the wall tower. Specifically, the pressure difference calculator 221 calculates a pressure difference using a constant flow rate pump 600, And the pressure drop occurring at this time is measured by a differential pressure meter 800 provided before and after the transfer pipe 812, and the pressure difference is calculated through the measurement.

The flow rate calculation unit 222 calculates the flow rate of the absorbent solution through the liquid flow meter 700 installed before the transfer pipe 810.

The pressure difference and the flow rate are adjusted to a predetermined length (for example, 10 cm) so that the absorbent solution is fully developed in laminar flow at the front end of the differential pressure meter 800, And then measuring the pressure and the flow rate generated when passing through the conveying pipe 812 having a relatively long length (for example, 15 cm).

The viscosity calculator 223 during carbon dioxide loading calculates the viscosity at the time of loading of carbon dioxide through the calculated values of the pressure difference calculator and the flow calculator. The relationship between the viscosity of the fluid, the pressure drop, and the flow rate in the laminar flow is represented by the following equation (6) by the Hagen-poisuille equation.

(6)

는 이송관에서의 압력강하 값,

는 흡수제 용액의 유량,

는 점도를 의미한다.From here,

Is the pressure drop value in the transfer pipe,

The flow rate of the absorbent solution,

Means viscosity.

Since both the flow rate and the viscosity have a linear relationship with respect to the pressure drop, the solution having a known viscosity is passed through the transfer pipe 810 to measure the flow rate and pressure difference at that time, Obtain a linear linear relationship of viscosity, pressure drop, and flow rate.

(7)

Using the linear relationship of Equation (7), the viscosity can be calculated at the corresponding time using the absorbent flow rate and the pressure drop measured at each sampling time, and the viscosity can be calculated when the carbon dioxide is loaded at the same time.

13 is a graph comparing the viscosity of the solution obtained by the present invention with the conventional result (Anundsen) in which the solution absorbing carbon dioxide was measured with a viscometer having an error of 0.01 cP, and the error of the value was only about 10% It can be seen that it can be measured relatively accurately.

8 is a block diagram schematically showing the absorption column calculating section, and the absorption column calculating section will be described with reference to this. In one embodiment, the absorption heat calculation unit 230 calculates the absorption heat of the carbon dioxide absorbent solution in the continuously changing loading, and calculates the enthalpy of the carbon dioxide absorbent solution and the gas supplied to the sludge tower. (231); An emission energy calculation unit 232 for calculating the enthalpy of the carbon dioxide absorbent solution and the gas released from the sill tower; And an absorption column calculator 233 for calculating the absorption column of the carbon dioxide absorbent solution through the calculated values of the supply energy calculation unit and the emission energy calculation unit.

When calculating the absorption heat by the absorption heat calculation unit 230, there should be no heat loss from the control volume 140 inside the wall tower to the outside. Since heat transfer occurs primarily between the absorbent solution and the device, it is necessary to insulate the face of the device in contact with the absorbent solution. Referring to FIG. 3, the portion where the absorbent solution contacts is outside and inside of the tube 2 (120). Accordingly, in order to insulate the inside and the outside of the tube 2 (120), Teflon (PTFE) having a low heat transfer coefficient and no reactivity with the absorbent is installed.

After building the adiabatic system as described above, an energy balance equation as shown in Equation (8) can be established based on the control volume 140 inside the tuft top 100.

(8)

는 WWC로 공급되는 흡수제 용액의 유량(g/sec),

는 WWC로 공급되는 흡수제 용액의 열용량(J/g),

는 WWC로 공급되는 흡수제 용액의 온도(K),

는 WWC로 공급되는 기체의 유량(g/sec),

는 WWC로 공급되는 기체의 열용량(J/g),

는 WWC로 공급되는 기체의 온도(K),

는 WWC에서 방출되는 흡수제 용액의 유량(g/sec),

는 WWC에서 방출되는 흡수제 용액의 열용량(J/g),

는 WWC에서 방출되는 흡수제 용액의 온도(K),

는 WWC에서 방출되는 기체의 유량(g/sec),

는 WWC에서 방출되는 기체의 열용량(J/g),

는 WWC에서 방출되는 기체의 온도(K),

은 기존 온도(K),

는 단위 몰당 CO₂ 흡수열을 의미한다.

(G / sec) of the absorbent solution supplied to the WWC,

(J / g) of the absorbent solution supplied to WWC,

(K) of the absorbent solution supplied to the WWC,

(G / sec) of the gas supplied to the WWC,

(J / g) of the gas supplied to the WWC,

(K) of the gas supplied to the WWC,

(G / sec) of the absorbent solution discharged from WWC,

(J / g) of the absorbent solution released from WWC,

(K) of the absorbent solution released in WWC,

(G / sec) of gas released from WWC,

(J / g) of gas released from WWC,

(K) of the gas released from WWC,

(K), < / RTI >

Means the CO ₂ absorption heat per unit mole.

를 계산할 수 있다.From the data or measurement values given in Equation (8), the supply energy calculation unit calculates the enthalpy of the supplied carbon dioxide absorbent solution and the gas, and the emission energy calculation unit calculates the enthalpy of the carbon dioxide absorbent solution and the gas to be emitted, The calculation unit

Can be calculated.

14 is a graph comparing a conventional result obtained by a differential reactor calorimetry (DRC) (KIER, Inna Kim) or a thermodynamic formula (Jou) under the condition of MEA 40 ° C and an absorption column calculated by the present invention, Is about 10%, and it can be understood that the measurement is relatively accurate.

In one embodiment, the pH calculator 240 may calculate the pH of the carbon dioxide sorbent solution from the measured value via the pH meter 241 in a continuously varying loading. More specifically, the pH meter 241 may be installed in the liquid reservoir 500, and the pH may be measured at each sampling time, thereby calculating the pH upon loading of carbon dioxide. 15 shows the pH measured using the present invention.

A method (S1) for calculating a carbon dioxide sorbent property according to another aspect of the present invention includes a step (S100) of contacting a carbon dioxide sorbent solution and a carbon dioxide-containing gas in a wetted wall column so that the carbon dioxide sorbent solution absorbs carbon dioxide in the carbon dioxide- ; And calculating (S200) the physical properties of the carbon dioxide absorbent, wherein the calculating step (S200) comprises: an absorption and removal rate calculation step (S210) of calculating a carbon dioxide absorption and removal rate of the carbon dioxide absorbent solution; A viscosity calculating step (S220) of calculating a viscosity at the time of carbon dioxide loading of the carbon dioxide absorbent solution; An absorption heat calculation step (S230) of calculating an absorption heat of the carbon dioxide absorbent solution; And a pH calculating step (S240) of calculating the pH of the carbon dioxide absorbent solution; And the like.

Hereinafter, each step will be described in detail, but overlapping portions already described in the present specification will be omitted.

In one embodiment, the calculation step S200 for calculating the physical properties of the carbon dioxide absorbent may include an absorption and removal rate calculation step S210 for calculating the carbon dioxide absorption and removal rate of the carbon dioxide absorbent solution according to the properties to be calculated; A viscosity calculating step (S220) of calculating a viscosity at the time of carbon dioxide loading of the carbon dioxide absorbent solution; An absorption heat calculation step (S230) of calculating an absorption heat of the carbon dioxide absorbent solution; And a pH calculating step (S240) of calculating the pH of the carbon dioxide absorbent solution; Or the like.

In one embodiment, the absorption and removal rate calculation step (S210) calculates the carbon dioxide absorption and removal rate using a small amount of carbon dioxide absorbent. The carbon dioxide absorption and removal rate is calculated by subtracting the carbon dioxide concentration A carbon dioxide transfer flux calculation step S211 for calculating a flux; Calculating a carbon dioxide amount (S212) for integrating the calculated carbon dioxide transfer flux with respect to time to calculate an amount of the carbon dioxide absorbed from the gas to the liquid; A carbon dioxide loading calculation step (S213) for calculating a carbon dioxide loading value using the weight of the carbon dioxide absorbent solution initially supplied; A carbon dioxide partial pressure calculation step (S214) for calculating the carbon dioxide partial pressure using the calculated carbon dioxide loading value and the VLE data of the carbon dioxide absorbent; And an overall mass transfer coefficient calculation step (S215) for calculating the overall mass transfer coefficient through calculation values of the carbon dioxide transfer flux calculation step, the carbon dioxide amount calculation step, the carbon dioxide loading calculation step, and the carbon dioxide partial pressure calculation step. The overall mass transfer coefficient (K _G ) is a measure to determine the absorption and removal rates. A large overall mass transfer coefficient means that the absorption and removal rates are fast. On the other hand, the low overall mass transfer coefficients means that the absorption and removal rates Is slow. That is, the present invention can calculate the carbon dioxide absorption and removal rate by measuring the overall mass transfer coefficient of the carbon dioxide absorbent.

The raw data is the carbon dioxide concentration of the gas out (see FIG. 9). Over time, as the absorbent becomes increasingly loaded, the rate of absorption decreases and the concentration of carbon dioxide in the gas out increases.

The carbon dioxide transfer flux calculation step S211 can be performed according to Equation 1 using the difference gas concentration before and after the pylon, and using the ideal gas state equation.

(1)

는 이산화탄소 전달 플럭스(flux), P는 압력, Q_gas는 가스 유량, A는 기-액 접촉면적, R은 기체상수, T는 온도, %CO₂ ⁱⁿ은 누벽탑에 공급되는 CO₂ 농도, %CO₂ ^out은 누벽탑에서 방출되는 CO₂ 농도를 의미한다.From here,

Carbon dioxide transfer flux (flux), P is the pressure, Q _gas is the gas flow rate, A is the gas-liquid contact area, R is the gas constant, T is the temperature,% CO ₂ ⁱⁿ the CO ₂ concentration to be supplied to the press byeoktap,% CO ₂ ^out means the CO ₂ concentration emitted from the pylon.

The carbon dioxide amount calculating step S212 may calculate the amount of carbon dioxide absorbed into the liquid in the gas up to a specific time by integrating the calculated carbon dioxide transfer flux with respect to time according to Equation (2). That is, since the sampling time of the basic data is 1 second, the integral form of the continuous function with respect to the time of the following equation (2) can be numerically calculated using data recorded every sampling time.

(2)

는 이산화탄소 흡수량, k는 k번째 데이터, h는 샘플링 타임(sampling time), m은 t시간까지 데이터(data) 개수이고, t=m*h를 의미한다. 그 외 수학식 1과 중복되는 내용은 생략한다.From here,

K is the kth data, h is the sampling time, m is the number of data up to t time, and t = m * h. The contents overlapping with the formula (1) are omitted.

The carbon dioxide loading calculation step S213 may calculate the carbon dioxide loading value up to a specific time according to Equation (3) using the weight of the initially supplied absorbent solution.

(3)

는 이산화탄소 로딩 값,

은 흡수제의 아민 몰 수를 의미하고, 그 외 수학식 1 및 2와 중복되는 내용은 생략한다.From here,

The carbon dioxide loading value,

Quot; means the number of moles of amine in the absorbent, and the contents overlapping with the equations (1) and (2) are omitted.

The carbon dioxide partial pressure calculation step S214 assumes a pseudo equilibrium state at every moment for the absorbent absorbing carbon dioxide, and the carbon dioxide loading value calculated by the equation (3) and the VLE data of the absorbent at the experiment temperature The following equation (4) can be established to calculate the carbon dioxide partial pressure.

(4)

는 이산화탄소를 흡수한 흡수제의 평형 이산화탄소 분압을 의미하고, 그 외 수학식 1 내지 3과 중복되는 내용은 생략한다.From here,

Means the equilibrium carbon dioxide partial pressure of the absorbent absorbing carbon dioxide, and the contents overlapping with the other equations (1) to (3) will be omitted.

The overall mass transfer coefficient calculation step S215 calculates the overall mass transfer coefficient according to the following equation (5) through the values and the data calculated by the above-described equations (1) to (4) Able to know.

(5)

은 WWC로 공급되는 이산화탄소 분압, LM은 log mean을 의미하고, 그 외 수학식 1 내지 4와 중복되는 내용은 생략한다.Where K _G is the overall mass transfer coefficient,

The carbon dioxide partial pressure supplied to the WWC, and LM mean the log mean, and the contents overlapping with the other equations (1) to (4) will be omitted.

Fig. 11 (MEA 40 ° C) and Fig. 12 (MEA 60 ° C) show the relationship between the absorption rate calculated from the absorption and removal rate calculation steps of the carbon dioxide sorbent property calculation apparatus according to one embodiment of the present invention, (Puxty, 2009), which is the calculated value of absorption rate. As can be seen from Figs. 11 and 12, the present invention not only obtains results with a conventional value and an error within 5% even if only a small amount of absorbent is used, And it can be seen that it can save a lot of time, manpower and cost.

In one embodiment, the viscosity calculation step (S220) is a step of calculating the viscosity at the time of continuously changing carbon dioxide, and it is a step of calculating the viscosity difference between the carbon dioxide absorbent solution and the carbon tower Calculating a pressure difference (step S221); A flow rate calculating step (S222) of calculating a flow rate of the carbon dioxide absorbent solution; And a carbon dioxide loading viscosity calculation step (S223) for calculating the viscosity at the time of carbon dioxide loading through the calculation values of the pressure difference calculation step and the flow amount calculation step.

The pressure difference calculation step S221 calculates the pressure difference generated when the carbon dioxide absorbent solution passes through a predetermined section before being supplied to the wall tower. Specifically, the pressure difference calculation step S221 uses a constant flow pump 600, And the pressure drop occurring at this time is measured by a differential pressure meter 800 provided before and after the transfer pipe 812, and the pressure difference is calculated through the measurement.

The flow rate calculation step S222 is performed by measuring the liquid flow meter 700 installed before the transfer pipe 810, and then calculating the flow rate of the absorbent solution.

The pressure difference and the flow rate are adjusted to a predetermined length (for example, 10 cm) so that the absorbent solution is fully developed in laminar flow at the front end of the differential pressure meter 800, And then measuring the pressure and the flow rate generated when passing through the conveying pipe 812 having a relatively long length (for example, 15 cm).

The viscosity calculation step (S223) during carbon dioxide loading calculates the viscosity at the time of carbon dioxide loading through the calculation values of the pressure difference calculation step and the flow calculation step. The relationship between the viscosity of the fluid, the pressure drop, and the flow rate in the laminar flow is represented by the following equation (6) by the Hagen-poisuille equation.

(6)

는 이송관에서의 압력강하 값,

는 흡수제 용액의 유량,

는 점도를 의미한다.From here,

Is the pressure drop value in the transfer pipe,

The flow rate of the absorbent solution,

Means viscosity.

Since both the flow rate and the viscosity have a linear relationship with respect to the pressure drop, the solution having a known viscosity is passed through the transfer pipe 810 to measure the flow rate and pressure difference at that time, Obtain a linear linear relationship of viscosity, pressure drop, and flow rate.

(7)

Using the linear relationship of Equation (7), the viscosity can be calculated at the corresponding time using the absorbent flow rate and the pressure drop measured at each sampling time, and the viscosity can be calculated when the carbon dioxide is loaded at the same time.

13 is a graph comparing the viscosity of the solution obtained by the present invention with the conventional result (Anundsen) in which the solution absorbing carbon dioxide was measured with a viscometer having an error of 0.01 cP, and the error of the value was only about 10% It can be seen that it can be measured relatively accurately.

In one embodiment, the absorption heat calculation step S230 is a step of calculating the absorption heat of the carbon dioxide absorbent solution in continuously changing loading, wherein the absorption energy calculation step S230 is a step of calculating the absorption energy of the carbon dioxide absorbent solution and the gas Calculation step S231; An emission energy calculation step (S232) of calculating the enthalpy of the carbon dioxide absorbent solution and the gas emitted from the sill tower; And an absorption column calculation step (S233) of calculating the absorption column of the carbon dioxide absorbent solution through the calculated values of the supply energy calculation step and the emission energy calculation step.

When calculating the absorption heat by the absorption heat calculation step, there should be no heat loss from the control volume 140 inside the pylon to the outside. Since heat transfer occurs primarily between the absorbent solution and the device, it is necessary to insulate the face of the device in contact with the absorbent solution. Referring to FIG. 3, the portion where the absorbent solution contacts is outside and inside of the tube 2 (120). Accordingly, in order to insulate the inside and the outside of the tube 2 (120), Teflon (PTFE) having a low heat transfer coefficient and no reactivity with the absorbent is installed.

After building the adiabatic system as described above, an energy balance equation as shown in Equation (8) can be established on the basis of the control volume 140 inside the pylon.

(8)

는 WWC로 공급되는 흡수제 용액의 유량(g/sec),

는 WWC로 공급되는 흡수제 용액의 열용량(J/g),

는 WWC로 공급되는 흡수제 용액의 온도(K),

는 WWC로 공급되는 기체의 유량(g/sec),

는 WWC로 공급되는 기체의 열용량(J/g),

는 WWC로 공급되는 기체의 온도(K),

는 WWC에서 방출되는 흡수제 용액의 유량(g/sec),

는 WWC에서 방출되는 흡수제 용액의 열용량(J/g),

는 WWC에서 방출되는 흡수제 용액의 온도(K),

는 WWC에서 방출되는 기체의 유량(g/sec),

는 WWC에서 방출되는 기체의 열용량(J/g),

는 WWC에서 방출되는 기체의 온도(K),

은 기존 온도(K),

는 단위 몰당 CO₂ 흡수열을 의미한다.

(G / sec) of the absorbent solution supplied to the WWC,

(J / g) of the absorbent solution supplied to WWC,

(K) of the absorbent solution supplied to the WWC,

(G / sec) of the gas supplied to the WWC,

(J / g) of the gas supplied to the WWC,

(K) of the gas supplied to the WWC,

(G / sec) of the absorbent solution discharged from WWC,

(J / g) of the absorbent solution released from WWC,

(K) of the absorbent solution released in WWC,

(G / sec) of gas released from WWC,

(J / g) of gas released from WWC,

(K) of the gas released from WWC,

(K), < / RTI >

Means the CO ₂ absorption heat per unit mole.

를 계산할 수 있다.From the data or measurement values given in Equation (8), the enthalpy of the carbon dioxide sorbent solution and the gas supplied in the supply energy calculation step is calculated, and the enthalpy of the carbon dioxide sorbent solution and gas released in the emission energy calculation step is calculated In the absorption column calculation step

Can be calculated.

14 is a graph comparing a conventional result obtained by a differential reactor calorimetry (DRC) (KIER, Inna Kim) or a thermodynamic formula (Jou) under the condition of MEA 40 ° C and an absorption column calculated by the present invention, Is about 10%, and it can be understood that the measurement is relatively accurate.

In one embodiment, the pH calculating step S240 may be calculated from a continuously varying loading of the pH of the carbon dioxide sorbent solution from the measured value at the pH meter 241. More specifically, the pH meter 241 may be installed in the liquid reservoir 500, and the pH may be measured at each sampling time, thereby calculating the pH upon loading of carbon dioxide. 15 shows the pH measured using the present invention.

It is to be understood that the present invention is not limited to the above embodiments and various changes and modifications may be made by those skilled in the art without departing from the spirit and scope of the invention.

1: Carbon dioxide absorbent property calculating device
The present invention relates to a thermocouple, and more particularly, to a thermocouple,
200:
210: absorption and removal rate calculation unit 211: carbon dioxide transfer flux calculation unit 212: carbon dioxide calculation unit 213: carbon dioxide loading calculation unit 214: carbon dioxide partial pressure calculation unit 215:
220: viscosity calculating section, 221: pressure difference calculating section, 222: flow rate calculating section, 223: viscosity calculating section
230: absorption heat calculation unit, 231: supply energy calculation unit, 232: emission energy calculation unit, 233: absorption column calculation unit
240: pH calculating section, 241: pH meter
300: gas supply device
400: water saturator
500: liquid storage
501: Magnetic Stiller
600: pump
700: liquid flow meter
800: Differential pressure gauge, 810 to 812: Transfer pipe
900: Oven
950: Carbon dioxide sensor
960: mass flow meter (MFC)
970: water knock out
980: Cooling bath at low temperature
990: desiccant column
991: Flowmeter

Claims (11)

A wetted wall column for contacting the carbon dioxide absorbent solution with the carbon dioxide-containing gas such that the carbon dioxide absorbent solution absorbs the carbon dioxide in the carbon dioxide-containing gas; And
And a calculator for calculating physical properties of the carbon dioxide absorbent,
The tufted tower comprises a tube 1 to which the carbon dioxide absorbent solution is supplied, a tube 2 having a larger diameter than the tube 1 and located outside the tube 1, and a heat insulating material disposed between the tube 1 and the tube 2 and including Teflon In addition,
Wherein the calculation unit calculates the absorption and removal rate of the carbon dioxide absorbent solution by continuously changing the carbon dioxide absorption and removal rate; A viscosity calculating unit for calculating the viscosity of the carbon dioxide absorbent solution at the time of carbon dioxide loading by continuously changing loading; An absorption heat calculation unit for calculating the absorption heat of the carbon dioxide absorbent solution by continuously changing loading; And a pH calculating unit for calculating the pH of the carbon dioxide absorbent solution from continuously changing loading; Wherein the carbon dioxide absorbent comprises at least one of the following components. delete The apparatus of claim 1, wherein the absorbing and removing speed calculating unit comprises:
A carbon dioxide transfer flux calculating unit for calculating a carbon dioxide transfer flux through which the carbon dioxide is absorbed through the carbon dioxide concentration difference before and after passing through the silo wall;
A carbon dioxide amount calculation unit for integrating the calculated carbon dioxide transfer flux with respect to time to calculate an amount of the carbon dioxide absorbed from the gas into the liquid;
A carbon dioxide loading calculation unit for calculating a carbon dioxide loading value using the weight of the carbon dioxide absorbent solution initially supplied;
A carbon dioxide partial pressure calculation unit for calculating a carbon dioxide partial pressure using the calculated carbon dioxide loading value and the VLE data of the carbon dioxide absorbent; And
And a global mass transfer coefficient calculation unit for calculating an overall mass transfer coefficient through the calculated values of the carbon dioxide transfer flux calculation unit, the carbon dioxide amount calculation unit, the carbon dioxide loading calculation unit, and the carbon dioxide partial pressure calculation unit. Apparatus for calculating the properties of carbon dioxide absorbent. The apparatus according to claim 1,
A pressure difference calculator for calculating a pressure difference that occurs when the carbon dioxide absorbent solution passes through a predetermined section before being supplied to the sewer wall tower;
A flow rate calculator for calculating a flow rate of the carbon dioxide absorbent solution; And
And a viscosity calculation unit for calculating a viscosity at the time of carbon dioxide loading through the pressure difference calculation unit and the calculation value of the flow rate calculation unit. The absorbent article as claimed in claim 1,
A supply energy calculation unit for calculating an enthalpy of the carbon dioxide absorbent solution and the gas supplied to the sludge tower;
An emission energy calculation unit for calculating an enthalpy of the carbon dioxide absorbent solution and the gas emitted from the sill tower; And
And an absorption column calculation unit for calculating an absorption column of the carbon dioxide absorbent solution through the calculated values of the supply energy calculation unit and the emission energy calculation unit. The method according to claim 1,
Characterized in that the pH calculator calculates the pH upon carbon dioxide loading from the value measured at the pH meter. Contacting the carbon dioxide absorbent solution and the carbon dioxide-containing gas in a wetted wall column so that the carbon dioxide absorbent solution absorbs the carbon dioxide in the carbon dioxide-containing gas; And
And calculating a physical property of the carbon dioxide absorbent,
The tufted tower comprises a tube 1 to which the carbon dioxide absorbent solution is supplied, a tube 2 having a larger diameter than the tube 1 and located outside the tube 1, and a heat insulating material disposed between the tube 1 and the tube 2 and including Teflon In addition,
Wherein the calculating step includes an absorption and removal rate calculation step of calculating carbon dioxide absorption and removal rates of the carbon dioxide sorbent solution by continuously changing loading; A viscosity calculating step of calculating the viscosity of the carbon dioxide absorbent solution at the time of carbon dioxide loading by continuously changing loading; An absorption heat calculation step of calculating the absorption heat of the carbon dioxide absorbent solution by continuously changing loading; And a pH calculating step of calculating the pH of the carbon dioxide absorbent solution by continuously changing loading; Wherein the carbon dioxide absorbent comprises at least one of the following components. 8. The method of claim 7,
A carbon dioxide transfer flux calculation step of calculating a carbon dioxide transfer flux through which the carbon dioxide is absorbed through the carbon dioxide concentration difference before and after passing through the silo wall;
Calculating a carbon dioxide amount to integrate the calculated carbon dioxide transfer flux with respect to time to calculate an amount of the carbon dioxide absorbed from the gas to the liquid;
A carbon dioxide loading calculation step of calculating a carbon dioxide loading value using the weight of the carbon dioxide absorbent solution initially supplied;
A carbon dioxide partial pressure calculation step of calculating a carbon dioxide partial pressure using the calculated carbon dioxide loading value and the VLE data of the carbon dioxide absorbent; And
And calculating a global mass transfer coefficient through calculation values of the carbon dioxide transfer flux calculation step, the carbon dioxide amount calculation step, the carbon dioxide loading calculation step, and the carbon dioxide partial pressure calculation step , Carbon dioxide absorbent properties. 8. The method according to claim 7,
A pressure difference calculation step of calculating a pressure difference occurring when the carbon dioxide absorbent solution passes through a predetermined section before being supplied to the sewer wall tower;
A flow rate calculating step of calculating a flow rate of the carbon dioxide absorbent solution; And
And calculating a viscosity at the time of carbon dioxide loading through the pressure difference calculation step and the calculation value of the flow rate calculation step. 8. The method of claim 7,
A supply energy calculating step of calculating an enthalpy of the carbon dioxide absorbent solution and the gas supplied to the burlap tower;
An emission energy calculating step of calculating an enthalpy of the carbon dioxide absorbent solution and the gas emitted from the sludge tower; And
And calculating an absorption heat of the carbon dioxide absorbent solution through the calculated values of the supply energy calculation step and the emission energy calculation step. 8. The method of claim 7,
Wherein the pH calculating step calculates the pH upon carbon dioxide loading from the value measured in the pH meter.

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