TW201511816A - A low-energy consumption system for CO2 adsorption, concentration and energy conversion - Google Patents

Abstract

A low-energy consumption system for CO2 adsorption, concentration and energy conversion, which including a low-energy CO2 desorption system, a concentrated CO2 storage system and a CO2 conversion of biofuel system. Its functions are CO2 separation and concentration from gas stream. The system uses adsorption/desorption process to separate and concentrate CO2, which has heat recycler to reuse adsorption heat for desorption of CO2. It can reduce the energy consumption and cost in CO2 capture. The desorbed CO2 is high CO2 concentration that can be used as carbon source in industry or algae. The algae produced by captured CO2 can be converted to energy as bio-diesel. This patent offers the cost-efficient technologies on CO2 capture and utilization.

Description

Low-energy carbon dioxide adsorption concentration and conversion energy system

The invention relates to a carbon dioxide adsorption concentration and conversion energy system, in particular to a system capable of effectively adsorbing and concentrating carbon dioxide in industrial exhaust gas, enabling carbon dioxide to be recycled and utilizing microalgae to convert carbon dioxide into biomass. Diesel, made into energy products.

As the greenhouse effect became more and more obvious, the Kyoto Protocol came into force. At the same time, Carbon dioxide Capture and Storage (CCS) was also evaluated as one of the feasible methods by the UN's IPCC in 2005. enumerate. These include the most commonly discussed wet absorption MEA method, dry adsorption method, and thin film method.

After searching for related patents for carbon dioxide adsorption, there are TW176857, TW592788 and TW455505, CN200720034121.6, etc. However, the scope of application of the previously disclosed patents or the materials used therein are different from the patents of the present application, and US 6,387,337 B1 is used. Alkali metals or alkaline earth metals are used as adsorbent materials to react with carbon dioxide greenhouse gases in a two-bed reactor. The adsorbent material and device used are also different from the patent application.

Therefore, a systematic and low-energy carbon dioxide adsorption concentration and conversion energy system is a development goal of the relevant industry.

Accordingly, it is an object of the present invention to provide a systemic and low energy consumption carbon dioxide adsorption concentration and conversion energy system.

Therefore, the present invention relates to a low-energy carbon dioxide adsorption concentration and conversion energy system, comprising a low-energy carbon dioxide adsorption and desorption device, a carbon dioxide concentration collection device, and a carbon dioxide conversion biomass energy device, the low-energy carbon dioxide absorption and desorption The apparatus includes a sulfur removal oxide device for removing sulfur oxides in the exhaust gas to be treated, a temperature regulator for adjusting the temperature and humidity of the exhaust gas to be treated, and a carbon dioxide adsorber for adsorbing carbon dioxide in the exhaust gas to be treated, a carbon dioxide desorber for desorbing carbon dioxide captured by the carbon dioxide adsorber, and a heat recovery unit for recovering heat of adsorption, the heat recovery unit providing recovered heat of adsorption to the carbon dioxide desorber as desorbed carbon dioxide Thermal energy to desorb carbon dioxide, the carbon dioxide concentration collection device comprising a high concentration carbon dioxide collector for collecting high concentration carbon dioxide released by the carbon dioxide desorber, and a low concentration carbon dioxide for collecting the carbon dioxide desorber Low concentration carbon dioxide collector, one two a carbon storage device, and a vacuum pump for reinforcing carbon dioxide desorber desorbing carbon dioxide, the vacuum pump has a vacuum range of 0.1 to 0.9 bar absolute, and the carbon dioxide conversion biomass energy device includes a pressurized The carbon dioxide microalgae absorber has a pressure of less than 3 kg/cm 2 .

The low-energy carbon dioxide adsorption concentration and conversion energy system of the present invention, wherein the carbon dioxide adsorber of the low-energy carbon dioxide adsorption and desorption device is a fixed packed bed.

The low-energy carbon dioxide adsorption concentration and conversion energy system of the present invention, wherein the carbon dioxide adsorber of the low-energy carbon dioxide absorption and desorption device is a fluidized bed.

The low energy carbon dioxide adsorption concentration and conversion energy system of the present invention, wherein the low concentration carbon dioxide collector is a carbon dioxide adsorber.

The low energy carbon dioxide adsorption concentration and conversion energy system of the present invention, wherein the low concentration carbon dioxide collector is a pressure tank.

The low-energy carbon dioxide adsorption concentration and conversion energy system of the present invention, wherein the carbon dioxide microalgae absorber absorbs carbon dioxide and nitrogen and phosphorus in the wastewater to accelerate the algae body, and the produced algae body is produced by transesterification. Quality diesel, wastewater is also purified by reducing nitrogen and phosphorus.

The low energy consumption carbon dioxide adsorption concentration and conversion energy system of the present invention further comprises a windmill disposed between the temperature regulator and the carbon dioxide adsorber.

The low-energy carbon dioxide adsorption concentration and conversion energy system of the present invention, wherein the carbon dioxide adsorber is filled with a carbon dioxide adsorbing material and contains a heat flow tube, and a fluid is introduced into the heat flow tube, and the external temperature cooler is passed to the normal temperature. The fluid is heated into the heat flow tube to control the temperature of the carbon dioxide adsorbing material in the carbon dioxide adsorber, and the carbon dioxide adsorbing material is a carbon dioxide adsorbing material which can be reused and regenerated, and is an APTS modified carbon nanotube. TEPA modified carbon nanotubes, TEPA modified yttrium aluminum than sixty Y zeolite, 13X zeolite or NaY zeolite.

The low-energy carbon dioxide adsorption concentration and conversion energy system of the present invention, wherein the carbon dioxide adsorbing material enters the carbon dioxide adsorber from a feed inlet, and the purified exhaust gas flows out of the carbon dioxide adsorber and flows through a regenerated adsorbent material to collect Cooling the regenerated adsorbent material with the purified exhaust gas and carrying the regenerated adsorbent material to a regenerative adsorbent material collector, and the regenerated adsorbent material is precipitated in the regenerative adsorbent material collector and sent back to the inlet of the carbon dioxide adsorber .

The low-energy carbon dioxide adsorption concentration and conversion energy system of the present invention, wherein the carbon dioxide microalgae absorber is connected in a plurality of series, and the outer shell is made of a transparent material to allow light to penetrate into the carbon dioxide microalgae absorber, in series The carbon dioxide microalgae absorber increases the time it takes for carbon dioxide to stay in the liquid phase, maintains system pressure, and increases the efficiency of microalgae in absorbing carbon dioxide.

The invention has the advantages of separating and collecting carbon dioxide from the flue gas by suction and desorption, and recovering the heat of adsorption by the heat recovery device and supplying the carbon dioxide desorber as desorption heat, which can effectively reduce Energy use and cost, to achieve the purpose of energy saving and carbon reduction, the carbon dioxide adsorbed and concentrated can be recycled to industrial use, and can be used as a carbon source of microalgae to produce microalgae and then converted into biodiesel, in addition to achieving carbon reduction benefits, It can make carbon dioxide reuse, increase economic benefits and be environmentally friendly.

100‧‧‧Low-energy carbon dioxide absorption and desorption device

10‧‧‧Desulfurization device

20‧‧‧ thermostat

25‧‧‧ windmill

30‧‧‧Carbon dioxide adsorber

30f‧‧‧Carbon dioxide adsorber

31‧‧‧Carbon dioxide adsorption material

31a‧‧‧Recycled adsorbent

32‧‧‧Carbon dioxide-containing waste gas to be treated

33‧‧‧Hot flow tube

34‧‧‧Normal temperature cooler

35‧‧‧heat recovery unit

36‧‧‧Renewable adsorbent collector

37‧‧‧Carbon dioxide adsorption material

38‧‧‧Inlet

39‧‧‧Outlet

40‧‧‧Carbon dioxide desorber

41‧‧‧Renewable Adsorption Material Collector

500‧‧‧Carbon dioxide concentration collection device

50‧‧‧High concentration carbon dioxide collector

51‧‧‧Carbon storage

52‧‧‧ Negative pressure collection room

55‧‧‧vacuum pump

56‧‧‧ gas compressor

59‧‧‧Low concentration carbon dioxide collector

600‧‧‧CO2 conversion biomass energy plant

60‧‧‧CO2 microalgae absorber

61‧‧‧Microalgae filter

62‧‧‧Transesterification

63‧‧‧ algae liquid

64‧‧‧Low-concentration carbon dioxide after pressurization

65‧‧‧ algae

A‧‧‧Exhaust gas to be treated

B‧‧‧High concentration of carbon dioxide

B2‧‧‧Low concentration carbon dioxide

C‧‧‧Process waste heat

D‧‧‧ purified waste gas

E‧‧‧Biodiesel

F‧‧‧Industrial raw materials

G‧‧‧purifying waste gas discharge

H‧‧‧ Wastewater

I‧‧‧ purified wastewater

Other features and effects of the present invention will be described with reference to the drawings. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic view of a preferred embodiment of a low energy consumption carbon dioxide adsorption concentration and conversion energy system according to the present invention; FIG. 2 is a schematic view of a first embodiment of the present invention; 2 is a schematic view of a third embodiment of the present invention; FIG. 5 is a schematic view showing a carbon dioxide desorption concentration according to a third embodiment of the present invention; and FIG. 6 is a schematic view of a fourth embodiment of the present invention.

Referring to Figure 1, a preferred embodiment of the low energy carbon dioxide adsorption concentration and conversion energy system of the present invention comprises a low energy carbon dioxide adsorption and desorption unit 100, a carbon dioxide concentration collection unit 500, and a carbon dioxide conversion biomass energy unit 600.

The low-energy carbon dioxide absorption and desorption device 100 includes a sulfur removal oxide device 10 for removing sulfur oxides in the exhaust gas A to be treated, a temperature regulator 20 for adjusting the temperature and humidity of the exhaust gas A to be treated, and a A carbon dioxide adsorber 30 for adsorbing carbon dioxide in the exhaust gas A to be treated, a carbon dioxide desorber 40 for desorbing carbon dioxide captured by the carbon dioxide adsorber 30, and a heat recovery unit 35 for recovering heat of adsorption.

The carbon dioxide adsorber 30 can be a fixed packed bed (as in Figure 2) or a fluidized bed (such as the carbon dioxide adsorber 30f of Figure 3).

When the carbon dioxide adsorber 30 is a fluidized bed, the carbon dioxide adsorber 30 is passed through a plurality of modified carbon dioxide adsorbing materials 31. The body bed is combined. The waste gas A to be treated flows through the carbon dioxide adsorber, and the carbon dioxide contained in the waste gas A to be treated is adsorbed by the carbon dioxide adsorbing material 31 to complete the adsorption of carbon dioxide.

In order to enhance the adsorption capacity of the carbon dioxide adsorber 30 and reduce energy consumption to achieve a true reduction in carbon dioxide emissions, the heat recovery unit 35 is further used in a low energy carbon dioxide adsorption concentration and conversion energy system.

The heat recovery unit 35 is for recovering the adsorption heat released by the carbon dioxide adsorber 30 while adsorbing carbon dioxide, and the low temperature brought in by the normal temperature cooler 34 can lower the temperature of the carbon dioxide adsorber 30 to stabilize the carbon dioxide adsorber 30. Adsorption capacity.

The heat recovery unit 35 is also used to provide the recovered heat of adsorption to the carbon dioxide desorber 40 to improve the desorption of carbon dioxide by the carbon dioxide desorber 40. The heat recovery unit 35 can also process waste heat of the process C (for example, flue gas). The waste heat is supplied to the carbon dioxide desorber 40, and the carbon dioxide desorber 40 is rapidly heated to desorb the carbon dioxide. The carbon dioxide desorber 40 preferably has a desorption temperature of 80 to 160 °C.

Referring to FIG. 4, the carbon dioxide concentration collection device 500 includes a high concentration carbon dioxide collector 50 for collecting the high concentration of carbon dioxide B released by the carbon dioxide desorber 40, and a collection of the carbon dioxide desorber 40 for collection. a low concentration carbon dioxide collector 59 of low concentration carbon dioxide B2, a carbon dioxide reservoir 51, and a vacuum pump 55 for enhancing the desorption of carbon dioxide by the carbon dioxide desorber 40, the vacuum range of the vacuum pump 55 being an absolute pressure of 0.1 ~0.9bar.

The carbon dioxide desorber 40 releases a high concentration of carbon dioxide B (90-99%) and is stored in the high concentration carbon dioxide collector 50, which maintains a slight negative pressure to cause carbon dioxide to flow into the high concentration. In the negative pressure collection chamber 52 of the carbon dioxide collector 50, this high concentration carbon dioxide B can be used as the industrial raw material F. When the carbon dioxide desorber 40 releases the residual lower concentration carbon dioxide B2 (less than 90%) (as shown in the concentration curve of FIG. 5), the low concentration carbon dioxide B2 is extracted and stored by the vacuum pump 55 at a negative pressure of 0.1 to 0.3 bar. In the low concentration carbon dioxide collector 59.

The low concentration carbon dioxide collector 59 can be a carbon dioxide adsorber or a pressure tank tank. If the low concentration carbon dioxide collector 59 is a carbon dioxide adsorber, the carbon dioxide adsorber 40 operates as the low energy carbon dioxide adsorption and desorption unit: After the adsorption is saturated, the desorption process is further performed to further purify the carbon dioxide concentration; if the low concentration carbon dioxide collector 59 is a pressure tank, the carbon dioxide is slightly pressurized to deliver the carbon dioxide to a carbon dioxide microalgae absorber 60 at a steady pressure.

The carbon dioxide conversion biomass energy plant 600 includes a pressurized carbon dioxide microalgae absorber 60.

The carbon dioxide microalgae absorber 60 uses the recovered carbon dioxide as a carbon source, and uses nitrogen, phosphorus, ammonia nitrogen and nitrous acid as nitrogen sources in the wastewater to proliferate the algae, produce algae and simultaneously purify the water, and the carbon dioxide microalgae absorber 60 absorbs Carbon dioxide and waste water make the produced algae produce biodiesel E through transesterification. Biomass diesel E is an environmentally friendly green fuel produced by wastewater and waste gas, and the wastewater is also purified by reducing nitrogen and phosphorus.

The carbon dioxide microalgae absorber 60 has a pressure of less than 3 kg/cm ² .

The detailed description of the microalgae is as follows: the solubility of carbon dioxide in the algae liquid can be increased under the pressure supply, and the carbon dioxide microbubbles are generated by the microbubble aeration disk (not shown), which easily absorbs the carbon dioxide and converts the algae liquid. For the algae body, the carbon dioxide microalgae absorber 60 in series has algae liquid and normal water or ammonia nitrogen-containing water treated by secondary wastewater, and the microalgae uses carbon dioxide as a carbon source, and ammonia nitrogen and nitrous acid in the waste water as a nitrogen source. The algae body is produced and the water is purified. Preferably, the algae liquid contains microalgae of Chlorella vulgaris, preferably having a pH of 6 to 7, a carbon dioxide concentration of less than 30%, and a carbon dioxide pressure of less than 2 kg/cm ^{2 .} Preferably, the ammonia nitrogen is preferably less than 10 mg/l.

After the transesterification reaction of the microalgae that absorbs carbon dioxide, the product is glycerin and fatty acid methyl ester (Fatty Acid Methyl Esters; FAME), which is also called biodiesel E. The microalgae has a fat component and triglyceride. (Triacylglycerols) is mainly composed of one molecule of glycerol and three molecules of fatty acids. After transesterification of triglyceride with methanol and catalyst, glycerol and fatty acid methyl ester are produced, which is biodiesel E. The steps for preparing the microalgae biodiesel are as follows.

Pretreatment step: disrupting the cell wall of the algal body, which may be a microwave method, a bead hitting method, an ultrasonic method, an autoclaving method, a homogenization method, or the like.

Saponification reaction step: the microalgae oil contains a part of oil from fatty acid, water and sediment, which is easy to produce saponification during the transesterification process, affecting the transesterification rate, so by adding a basic catalyst such as potassium hydroxide or sodium hydroxide Resolving oil from fatty acids into water-soluble fatty acid salts for subsequent The transesterification reaction proceeds.

The transesterification step: as described above, the alcohol is reacted with the triglyceride, and a suitable catalyst is added to accelerate the transesterification to form a fatty acid ester and glycerin.

As shown in FIG. 1, the carbon dioxide-containing waste gas to be treated enters the low-energy carbon dioxide adsorption concentration and conversion energy system from the exhaust gas outlet A, through the sulfur removal oxide device 10, the temperature regulator 20, a windmill 25, and the carbon dioxide adsorption. And the carbon dioxide desorber 40, the carbon dioxide in the exhaust gas is adsorbed to discharge the purified exhaust gas D and the separated high concentration carbon dioxide B.

The heat recovery unit 35 recovers the heat of adsorption generated by the carbon dioxide adsorber 30 and the process waste heat C, and returns the recovered heat energy to the carbon dioxide desorber 40, thereby saving a large amount of energy consumption. The high-concentration carbon dioxide B produced by the carbon dioxide desorber 40 is stored by the high-concentration carbon dioxide collector 50, and the high-concentration carbon dioxide B can be used as the industrial raw material F, and the low-concentration carbon dioxide B2 (see FIG. 4) is supplied to the microalgae as the carbon. Source utilization, and finally the microalgae is converted to produce the birth quality diesel E.

<Specific Example 1>

Referring to FIG. 1 and FIG. 2, the windmill 25 is used at the rear end of the thermostat 20 for drawing in the carbon dioxide-containing waste gas 32. Since most of the flue gas contains sulfur oxides, in order to avoid affecting the carbon dioxide adsorber 30, The exhaust gas A to be treated is passed through the sulfur oxide system 10, and then enters the thermostat 20 to adjust the temperature of the exhaust gas A to be treated, while also adjusting the humidity of the exhaust gas A to be treated, and protecting the windmill 25.

The carbon dioxide adsorber 30 is filled with a carbon dioxide adsorbing material 31, and contains a heat flow tube 33 (indicated by the dotted line in FIG. 2), the fluid flowing into the heat flow tube 33 may be heat medium oil or water, and the ambient temperature cooler 34 is passed into the normal temperature fluid to the heat flow tube 33. The temperature of the adsorbent material 31 in the carbon dioxide adsorber 30 is controlled to maintain a normal temperature, and the heat of adsorption at the time of adsorption is led to the carbon dioxide adsorber 30 to the heat recoverer 35, and the heat energy of the carbon dioxide desorber 40 is supplied to the low energy-consuming Carbon dioxide treatment technology.

The carbon dioxide adsorbing material 31 performs carbon dioxide adsorption on the carbon dioxide in the exhaust gas to be treated, adsorbs and purifies the carbon dioxide in the exhaust gas to be treated, completes the adsorption of carbon dioxide, and finally flows out the carbon dioxide adsorbent by adsorbing and purifying the carbon dioxide. 30, flowing through the gas outlet D to discharge.

The carbon dioxide adsorbing material 31 is an adsorbent material which can be reused and reused, and can be an APTS modified carbon nanotube, a TEPA modified carbon nanotube, a TEPA modified yttrium aluminum ratio of 60 Y zeolite, 13X zeolite or NaY zeolite.

The carbon dioxide adsorber 30 can be a fixed packed bed or a fluidized bed (Fig. 3). If it is a fixed packed bed, the carbon dioxide adsorber 30 also has a desorber function, and is a double bed type or a multi bed type. The desorber 30, 40 (Fig. 2), the number of fixed packed beds can be determined according to the amount of carbon dioxide treatment and the time of suction and desorption. The carbon dioxide adsorbing material 37 in the carbon dioxide desorber 40 is subjected to adsorption and saturation, and then carbon dioxide is desorbed. Except that the heat of adsorption recovered by the heat recoverer 35 is available to the carbon dioxide desorber 40, the carbon dioxide adsorbing material 37 is generally removed. The heat of attachment is usually higher than the heat of adsorption of the adsorbent material 31, so that the heat of recovery of the process waste C is given to the heat back. By increasing the calorific value of the condenser 35, it is sufficient that the carbon dioxide adsorbing material 37 in the carbon dioxide desorber 40 desorbs carbon dioxide.

<Specific Embodiment 2>

Referring to Figures 1 and 3, the carbon dioxide adsorber 30f can be a fluidized bed suitable for treating large amounts of exhaust gas, such as large flue gas from a coal-fired power plant, the carbon dioxide adsorber 30f being a plurality of modified carbon dioxide adsorbing materials. 31 is a combination of fluidized beds.

After entering the carbon dioxide adsorber 30f, the exhaust gas to be treated flows upward, and the carbon dioxide adsorbing material 31 enters from an upper inlet port 38, and the carbon dioxide adsorbing material 31 flows from a discharge port 39 to the carbon dioxide desorber 40. The carbon dioxide contained in the exhaust gas is adsorbed by the carbon dioxide adsorbing material 31, and the purified exhaust gas D flows out of the carbon dioxide adsorber 30f, passes through a regenerated adsorbent collector 36, and the regenerated adsorbent 31a is cooled and purified by the purified exhaust gas D. The purified exhaust gas D flows the regenerated adsorbent material 31a to a regenerated adsorbent material collector 41, and finally the purified exhaust gas D is discharged to the regenerated adsorbent material collector 41, and the regenerated adsorbent material 31a is deposited on the regenerated adsorbent material. In the hopper 41, the regenerated adsorbing material 31a is again transported back to the inlet port 38 of the carbon dioxide adsorber 30f for carbon dioxide adsorption, and the circulation operation is performed to save the cooling and regeneration of the adsorbing material 31a. Energy use.

<Specific Example 3>

Referring to Figures 1, 4 and 5, the high concentration carbon dioxide collector 50, a gas compressor 56, the carbon dioxide reservoir 51, the low concentration carbon dioxide collector 59, the vacuum pump 55 and the carbon dioxide micro are included. Algae absorber 60.

The carbon dioxide desorber 40 first releases a high concentration of carbon dioxide B. When the concentration is higher than the target recovery concentration C1, C1 is, for example, 30%, and the carbon dioxide B is collected by the high concentration carbon dioxide collector 50. The high concentration carbon dioxide collector 50 A plurality of negative pressure collection chambers 52 are contained, and a high concentration of carbon dioxide B is sequentially collected, and then extracted and compressed by the gas compressor 56 to the carbon dioxide storage unit 51, and then used as an industrial raw material F.

The residual carbon dioxide B2 having a residual carbon dioxide concentration lower than C1 is withdrawn to the low-concentration carbon dioxide collector 59 by the vacuum pump 55, and the principle is a variable pressure temperature-temperature adsorption and desorption method, and the extracted low-concentration carbon dioxide B2 can be pressurized. The carbon dioxide microalgae absorber 60 is treated, or may be refluxed to the carbon dioxide adsorber 30 to increase the concentration.

<Specific Embodiment 4>

Referring to Figures 1 and 6, the low concentration carbon dioxide collector 59 delivers a pressurized (less than 3 kg/cm ² ) low concentration carbon dioxide 64 to the carbon dioxide microalgae absorber 60, the carbon dioxide microalgae absorber 60 in a plurality of series The microalgae species may be a high oil content algae species such as chlorella species. After pressurization, the low concentration carbon dioxide 64 is introduced into the tandem carbon dioxide microalgae absorber 60 for the microalgae to absorb carbon dioxide and then from the purified waste gas discharge port. G discharge, the series carbon dioxide microalgae absorber 60 can increase the time that carbon dioxide stays in the liquid phase, maintain the pressure of the system, and increase the efficiency of the microalgae to absorb carbon dioxide.

The carbon dioxide microalgae absorber 60 has a transparent material that allows light to penetrate into the carbon dioxide microalgae absorber 60 to In the fourth embodiment, the concentration of the low-concentration carbon dioxide 64 can be reduced from 30% to less than 0.1% using freshwater chlorella, and the ammonia nitrogen in the wastewater H is used as the nitrogen source of the microalgae. The algae liquid 63 produced by the carbon dioxide microalgae absorber 60 is discharged to a microalgae filter 61 to separate the algae body 65 from the purified wastewater I, and then the algae body 65 is converted into the biomass diesel E via a transesterifier 62.

The above is only the preferred embodiment of the present invention, and the scope of the present invention is not limited thereto, that is, the simple equivalent changes and modifications made by the patent application scope and patent specification content of the present invention, All remain within the scope of the invention patent.

100‧‧‧Low-energy carbon dioxide absorption and desorption device

10‧‧‧Desulfurization device

20‧‧‧ thermostat

25‧‧‧ windmill

30‧‧‧Carbon dioxide adsorber

35‧‧‧heat recovery unit

40‧‧‧Carbon dioxide desorber

500‧‧‧Carbon dioxide concentration collection device

50‧‧‧High concentration carbon dioxide collection Device

600‧‧‧CO2 conversion biomass energy plant

60‧‧‧CO2 microalgae absorber

A‧‧‧Exhaust gas to be treated

B‧‧‧High concentration of carbon dioxide

C‧‧‧Process waste heat

D‧‧‧ purified waste gas

E‧‧‧Biodiesel

F‧‧‧Industrial raw materials

Claims (10)

A low-energy carbon dioxide adsorption concentration and conversion energy system comprising: a low-energy carbon dioxide adsorption and desorption device, the low-energy carbon dioxide adsorption and desorption device comprising a sulfur removal oxidation for removing sulfur oxides in the exhaust gas to be treated a radiator, a thermostat for adjusting the temperature and humidity of the exhaust gas to be treated, a carbon dioxide adsorber for adsorbing carbon dioxide in the exhaust gas to be treated, and a carbon dioxide desorption for desorbing carbon dioxide captured by the carbon dioxide adsorber And a heat recovery device for recovering heat of adsorption, the heat recovery device supplies the recovered heat of adsorption to the carbon dioxide desorber as desorbed carbon dioxide heat energy to desorb carbon dioxide; a carbon dioxide concentration collecting device, the carbon dioxide concentration collecting device A high concentration carbon dioxide collector for collecting high concentration carbon dioxide released by the carbon dioxide desorber, a low concentration carbon dioxide collector for collecting low concentration carbon dioxide released by the carbon dioxide desorber, and a carbon dioxide storage unit are included. And one for strengthening the carbon dioxide off a vacuum pump for desorbing carbon dioxide, the vacuum range of the vacuum pump is an absolute pressure of 0.1 to 0.9 bar; and a carbon dioxide conversion biomass energy device comprising a pressurized carbon dioxide microalgae absorber The pressure of the carbon dioxide microalgae absorber is less than 3 kg/cm ² . The low-energy carbon dioxide adsorption concentration and conversion energy system of claim 1, wherein the carbon dioxide adsorber of the low-energy carbon dioxide adsorption and desorption device is a fixed packed bed. The low-energy carbon dioxide adsorption concentration and conversion energy system of claim 1, wherein the carbon dioxide adsorber of the low-energy carbon dioxide adsorption and desorption device is a fluidized bed. The low energy carbon dioxide adsorption concentration and conversion energy system of claim 1, wherein the low concentration carbon dioxide collector is a carbon dioxide adsorber. The low energy carbon dioxide adsorption concentration and conversion energy system of claim 1, wherein the low concentration carbon dioxide collector is a pressure tank. The low-energy carbon dioxide adsorption concentration and conversion energy system according to claim 1, wherein the carbon dioxide microalgae absorber absorbs carbon dioxide and nitrogen and phosphorus in the wastewater to accelerate the algae, and the produced algae are transesterified. Biomass diesel is produced, and wastewater is also purified by reducing nitrogen and phosphorus. The low-energy carbon dioxide adsorption concentration and conversion energy system of claim 1, further comprising a windmill disposed between the thermostat and the carbon dioxide adsorber. The low-energy carbon dioxide adsorption concentration and conversion energy system according to claim 2, wherein the carbon dioxide adsorber is filled with a carbon dioxide adsorbing material and contains a heat flow tube, and the heat flow tube is filled with a fluid, and is passed through an external normal temperature cooler. Enter the normal temperature fluid into the heat flow tube, Controlling the temperature of the carbon dioxide adsorbing material in the carbon dioxide adsorber, the carbon dioxide adsorbing material is a carbon dioxide adsorbing material which can be regenerated and reused, is an APTS modified carbon nanotube, a TEPA modified carbon nanotube, and is modified by TEPA The aluminum is more than sixty Y zeolite, 13X zeolite or NaY zeolite. The low-energy carbon dioxide adsorption concentration and conversion energy system according to claim 3, wherein the carbon dioxide adsorbent material enters the carbon dioxide adsorber from a feed inlet, and the purified exhaust gas flows out of the carbon dioxide adsorber and flows through a regenerative adsorption. The material collector uses the purified exhaust gas to cool the regenerated adsorption material and carries the regenerated adsorption material to a regenerative adsorption material collector, and the regenerated adsorption material is precipitated in the regenerative adsorption material collector and then sent back to the carbon dioxide adsorber. Feed port. The low-energy carbon dioxide adsorption concentration and conversion energy system according to claim 1, wherein the carbon dioxide microalgae absorber is connected in a plurality of series, and the outer shell is made of a transparent material to allow light to penetrate into the carbon dioxide microalgae absorber. The series of carbon dioxide microalgae absorbers can increase the time that carbon dioxide stays in the liquid phase, maintain system pressure, and increase the efficiency of microalgae in absorbing carbon dioxide.