KR101812500B1 - High efficiency cooling system for bio-oil produced at high temperature - Google Patents

High efficiency cooling system for bio-oil produced at high temperature Download PDF

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Publication number
KR101812500B1
KR101812500B1 KR1020150154274A KR20150154274A KR101812500B1 KR 101812500 B1 KR101812500 B1 KR 101812500B1 KR 1020150154274 A KR1020150154274 A KR 1020150154274A KR 20150154274 A KR20150154274 A KR 20150154274A KR 101812500 B1 KR101812500 B1 KR 101812500B1
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South Korea
Prior art keywords
cooling
cooling device
bio
oil
vertical cooler
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KR1020150154274A
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Korean (ko)
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KR20170052163A (en
Inventor
이경환
이인구
황경란
이진석
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한국에너지기술연구원
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    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
    • C10G9/00—Thermal non-catalytic cracking, in the absence of hydrogen, of hydrocarbon oils
    • C10G9/002—Cooling of cracked gases
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
    • C10G31/00—Refining of hydrocarbon oils, in the absence of hydrogen, by methods not otherwise provided for
    • C10G31/06—Refining of hydrocarbon oils, in the absence of hydrogen, by methods not otherwise provided for by heating, cooling, or pressure treatment
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L1/00—Liquid carbonaceous fuels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
    • C10G2300/00—Aspects relating to hydrocarbon processing covered by groups C10G1/00 - C10G99/00
    • C10G2300/10—Feedstock materials
    • C10G2300/1011—Biomass

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  • Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Hydrogen, Water And Hydrids (AREA)
  • Apparatus Associated With Microorganisms And Enzymes (AREA)

Abstract

A first cooling device for cooling and collecting the polymeric bio-oil in the gas phase, a second cooling device for cooling the gas phase bio-oil, and a second cooling device for cooling the bio- And the cooling water is circulated in the inlet port side of the cooling water tank, and the low-molecular bio-oil in the gas phase not containing the cooling water is cooled and collected by the first cooling device A second cooling device, and a plurality of cooling means circulated outside the first cooling device, wherein the third cooling stage analyzes the gas phase bio-oil flowing from the second cooling device to control the operation of the plurality of cooling means, And a storage tank connected to the first cooling device, the second cooling device and the third cooling device to store the cooled bio-oil, wherein the first cooling Wherein the outlet of the first vertical cooler is formed at a lower height than the inlet of the second vertical cooler so that the gas phase bio-oil flowing out of the first vertical cooler flows into the second vertical cooler on an ascending current, And the second cooling device includes a partition wall to partition the space of the second cooling device in which the cooling tube and the cooling filter are installed.

Description

HIGH EFFICIENCY COOLING SYSTEM FOR BIO-OIL PRODUCED AT HIGH TEMPERATURE [0002]

The present invention relates to an efficient cooling system for high-temperature bio-oils, and more particularly to an efficient cooling system for high-temperature bio-oils for efficiently cooling and storing bio-oils discharged from a reaction process of 300 ° C or higher in a storage tank .

Renewable energy is attracting much attention in order to solve the problems of environmental pollution and depletion of energy resources caused by using existing fossil fuel as main energy source.

Especially, in recent 10 years, biomass including plants has been recognized as an alternative energy source applicable to existing industrial facilities and devices focused on fossil fuels, and the technology is being developed at a high speed.

Biomass refers to the conversion of all terrestrial organisms, including terrestrial and aquatic plants, animals and microorganisms, into substances. It means that all organic matter, such as wood, grain, agricultural by-products, sludge from sewage treatment plants, . Biomass is based on plants and plants are carbon compounds that store solar energy during chemical bonding. Therefore, biomass is an energy storage material composed of carbon compounds such as fossil fuels. Therefore, biomass is the only renewable resource to replace fossil fuels as a source of chemical feedstock as well as an energy source.

Biomass is classified according to the kind of raw materials, such as starchy biomass (grains, potatoes), woody biomass (agricultural byproducts such as wood, herbaceous rice, rice husk, and rice hull), sugar-based biomass (sugarcane, , Animal protein-based biomass (animal carcasses, microbial cells, etc.).

Among them, wood biomass is more than 5 million tons in Korea, and in Malaysia, only 20 million tons of energy crop by-product (EFB) generated from palm oil milking plant can supply relatively stable raw material. Therefore, Research on the production of bio-crude oil using mass has been actively carried out.

A related art is disclosed in Korean Patent No. 0857247 ("Method for producing bio-oil by catalytic cracking ", filed on Sep. 5, 2008, hereinafter referred to as prior art) And more particularly, to a method for reforming a bio-oil into a more stable bio-oil having a high heating value.

However, the bio-oil produced by the same technology as the above-mentioned prior art is discharged in a high-temperature gas state when discharged through the reaction process. At this time, the bio-oil on the gas often flies to the atmosphere.

Therefore, in recent years, there is a growing demand for a cooling system capable of efficiently cooling such gas-phase bio-oil and producing liquid-phase bio-oil.

Korean Patent No. 0857247 ("Method for Producing Bio-Oils by Catalytic Pyrolysis,"

It is an object of the present invention to provide an efficient cooling system of high-temperature bio-oil for efficiently cooling and storing the gas-phase bio-oil discharged from a reaction process of 300 ° C or higher in a storage tank .

A first cooling device for cooling and collecting the polymeric bio-oil in the gas phase, a second cooling device for cooling the gas phase bio-oil, and a second cooling device for cooling the bio- And the cooling water is circulated in the inlet port side of the cooling water tank, and the low-molecular bio-oil in the gas phase not containing the cooling water is cooled and collected by the first cooling device A second cooling device, and a plurality of cooling means circulated outside the first cooling device, wherein the third cooling stage analyzes the gas phase bio-oil flowing from the second cooling device to control the operation of the plurality of cooling means, And a storage tank connected to the first cooling device, the second cooling device and the third cooling device to store the cooled bio-oil, wherein the first cooling Wherein the outlet of the first vertical cooler is formed at a lower height than the inlet of the second vertical cooler so that the gas phase bio-oil flowing out of the first vertical cooler flows into the second vertical cooler on an ascending current, And the second cooling device includes a partition wall for partitioning the space of the second cooling device in which the cooling tube and the cooling filter are installed.

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As described above, according to the efficient cooling system of the high-temperature bio-oil according to the present invention, the gas-phase bio-oil discharged from the reaction process at 300 ° C or higher can be efficiently cooled and stored in the storage tank.

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is an overall schematic view of an efficient cooling system of high temperature bio-

Hereinafter, the technical idea of the present invention will be described more specifically with reference to the accompanying drawings.

BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings, which are included to provide a further understanding of the technical concept of the present invention, are incorporated in and constitute a part of the specification, and are not intended to limit the scope of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is an overall schematic diagram of an efficient cooling system of high temperature bio-oils according to the present invention.

1, the high-temperature bio-oil cooling system of the present invention comprises a first cooling device 100, a second cooling device 200, and a third cooling device 300. The first cooling device 100, the second cooling device 200, and the third cooling device 300 are connected to at least one storage tank 400.

In the high-temperature bio-oil cooling system of the present invention, the high-temperature gas phase bio-oil discharged from the reaction process is primarily cooled through the first cooling device 100, and the gas passing through the first cooling device 100 Is introduced into the second cooling device (200). The second cooling device 200 cools bio-oil on the gas flowing from the first cooling device 100. At this time, the bio-oil introduced from the first cooling device 100 is mostly composed of low-molecular bio-oil and moisture. The gas-phase bio-oil that has passed through the second cooling device 200 flows into the third cooling device 300. The third cooling unit 300 is connected to a plurality of cooling units. The third cooling device 300 cools and collects a small amount of the bio-oil. The high-temperature bio-oil cooling system of the present invention is connected to at least one of the first cooling device 100, the second cooling device 200, and the third cooling device 300, The oil is stored in the reservoir (400).

The first cooling device 100 includes a first vertical cooler 110 and a second vertical cooler 120.

The first vertical cooler 110 is a device in which the bio-oil on the hot gas is first introduced and cooled through the reaction process. More specifically, the first vertical cooler 110 is connected to the second vertical cooler 120 through a first vertical pipe 111 provided at an upper portion thereof. In the first vertical cooler 110, the bio-oil on the incoming hot gas flows from the bottom to the top. In addition, the first vertical cooler 110 cools the high temperature gas-phase bio-oil when the high-temperature gas-phase bio-oil moves from the bottom to the top. At this time, the gas phase bio-oil is a low-grade bio-oil containing a high boiling substance. In addition, the first vertical cooler 110 should have an outlet lower than the inlet of the second vertical cooler 120. The reason for this is that the gas phase bio-oil flowing out of the first vertical cooler 110 flows into the second vertical cooler 120 in an ascending current. Another reason is that the outlet of the first vertical cooler 110 is formed lower than the inlet of the second vertical cooler 120 so that the length of the first vertical pipe 111 is shortened, (110) to the second vertical cooler (120) to increase the cooling efficiency.

The second vertical cooler 120 is connected to the first vertical cooler 110 through a first vertical pipe 111 at a lower portion thereof. As a result, the second vertical cooler 120 receives the gas oil from the first vertical cooler 110. The second vertical cooler 120 has a second vertical pipe 121 at an upper portion thereof and is connected to the second cooling device 200. At this time, the gas phase bio-oil inside the second vertical cooler 120 flows into the second cooling device 200 through the second vertical pipe 121. In addition, the second vertical pipe 121 may further include a flow pump (not shown) to more efficiently flow the gas phase bio-oil to the second cooling device 200.

The second cooling device 200 has cooling water circulated outside and the gas oil is introduced from the first cooling device 100 through the second vertical pipe 121 at the upper side and the transfer pipe 201 The bio-oil on the gas phase is transferred to the third cooling device 300. [ The second cooling device 200 is formed to sequentially pass the bio-oil from the first cooling device 100 through the cooling tube 210 and the cooling filter 220. The cooling tube 210 and the cooling filter 220 are provided to further ensure cooling and collection so as to prevent a trace amount of gaseous bio-ounce passed through the first cooling device 100 from being transferred to the third cooling device.

In addition, the transfer piping 201 allows the gas phase bio-oil to flow to the third cooling device 300.

The second cooling device 200 is provided with a partition 203 partitioning the cooling tube 210 and the cooling filter 220. The partition wall 203 is formed in a vertical direction inside the second cooling device 200, and a gas-phase bio-oil is formed in the lower part. That is, a cooling tube 210 is provided at a portion where the gas phase bio-oil flows from the first cooling device 100 on the basis of the partition 203, and the cooling tube 210 The cooling filter 220 is provided at a portion where the gas phase bio-oil flows out. At this time, the cooling filter 220 is provided in the reverse direction in which the gas phase bio-oil flows. If the gas flow direction is reversed, the gas can not pass easily and the cooling efficiency by the sufficient contact with the cooling filter 220 can be increased .

The cooling tube 210 is provided at a portion where the gas phase bio-oil flows from the first cooling device 100 with respect to the partition wall 203, Are formed in the cooling device 200 in the vertical direction at a predetermined height. This cooling tube 210 is intended to maximize the cross-sectional area that can be cooled when the gas phase bio-oil moves from the top to the bottom. In addition, the cooling tube 210 is supplied with cooling water from the outside, circulates once, and is discharged to the outside.

The cooling filter 220 is positioned at a portion where the gas phase bio-oil that has passed through the cooling tube 210 flows out from the partition wall 203 and is formed at a predetermined height in the second cooling device 200. In addition, the cooling filter 220 may be formed in the form of a porous wool or iron mesh that can easily cool or collect water and a low molecular gas phase, or may be filled with a sorbent material or the like.

In the second cooling device 200 having such a configuration, the gas-phase bio-oil flows from the first cooling device 100 on the upper side, and the bio-oil on the inflow gas flows downward from the upper side, . Thereafter, the gas-phase cooling tube 210 passes between the inner bottom surface of the second cooling device 200 and the partition wall 203, and moves upward. At this time, the gas phase bio-oil moves from the lower part to the upper part, passes through the cooling filter 220, and is discharged to the third cooling unit 300.

The third cooling device 300 is a device for cooling and collecting a very small amount of low molecular and moisture substances flowing from the second cooling device 200 as much as possible.

As shown in FIG. 4, the third cooling unit 300 may include first to fourth cooling units 304, and may be a first cooling unit 301 according to circumstances.

That is, the third cooling device 300 may use only one cooling means by analyzing the bio-oil flowing from the second cooling device 200, or may use a plurality of cooling means.

The first to fourth cooling units 304 are connected to the cooling unit 301 and the fourth cooling unit 304 in order. Various types of fillers or structural forms can be introduced here.

The high temperature bio-oil cooling system of the present invention is connected to at least one storage tank 400 of the first, second, and third cooling apparatuses 100, 200, and 300. That is, the liquid bio-oil that is cooled and collected in each cooling device is discharged to the storage tank 400 and stored. The discharge pipe 410 connecting the cooling device and the storage tank 400 is provided with a discharge valve 411 at an outlet of each cooling device.

It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

100: first cooling device
110: first vertical cooler
111: First vertical pipe
120: second vertical cooler
121: second vertical pipe
200: second cooling device
201: Transfer piping
202: Gas analyzer
203:
210: cooling tube
220: Cooling filter
300: Third cooling device
301: first cooling means
302: second cooling means
303: third cooling means
304: fourth cooling means
400: storage tank
410: discharge piping
411: discharge valve

Claims (7)

A first vertical cooler (110) and a second vertical cooler (120) circulating cooling water outwardly and interconnected to sequentially cool the gas phase bio oil, wherein the first cooling Apparatus (100);
A cooling tube 210 in which cooling water is circulated on the outer side and the cooling water is circulated on the inner inlet side and a cooling filter 220 is disposed on the side of the inner side of the cooling tube 220 to be cooled and collected in the first cooling device 100 A second cooling device (200) for cooling and collecting low-molecular-weight bio-oil in the gas phase;
A third cooling device 300 for controlling the operation of the plurality of cooling means by analyzing bio-oil on the gas flowing in from the second cooling device 200, including a plurality of cooling means circulating the cooling water outside; And
A storage tank 400 connected to the first cooling device 100, the second cooling device 200, and the third cooling device 300 to store the cooled bio-oil;
, ≪ / RTI &
The first cooling device (100)
The outlet of the first vertical cooler 110 is formed at a lower height than that of the inlet of the second vertical cooler 120 so that the gas oil on the gas flowing out of the first vertical cooler 110 flows upward 2 vertical cooler 120,
The second cooling device (200)
Wherein a space of the second cooling device (200) in which the cooling tube (210) and the cooling filter (220) are installed is partitioned by including a partition wall (203) therein.
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KR1020150154274A 2015-11-04 2015-11-04 High efficiency cooling system for bio-oil produced at high temperature KR101812500B1 (en)

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Application Number Priority Date Filing Date Title
KR1020150154274A KR101812500B1 (en) 2015-11-04 2015-11-04 High efficiency cooling system for bio-oil produced at high temperature

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KR20170052163A KR20170052163A (en) 2017-05-12
KR101812500B1 true KR101812500B1 (en) 2017-12-28

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