CN1095093A - Powder coal heat-carrying agent hydro-gasification process - Google Patents
Powder coal heat-carrying agent hydro-gasification process Download PDFInfo
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- CN1095093A CN1095093A CN 93103798 CN93103798A CN1095093A CN 1095093 A CN1095093 A CN 1095093A CN 93103798 CN93103798 CN 93103798 CN 93103798 A CN93103798 A CN 93103798A CN 1095093 A CN1095093 A CN 1095093A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/16—Combined cycle power plant [CCPP], or combined cycle gas turbine [CCGT]
- Y02E20/18—Integrated gasification combined cycle [IGCC], e.g. combined with carbon capture and storage [CCS]
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Abstract
The present invention's " powder coal heat-carrying agent hydro-gasification process " belongs to fine coal and produces hydropyrolysis coal gas technology field.Its technology mainly is: hydrogenation gasification burner (9) is made liquid agent with steam (hypomere sprays into the steam that waste water produces), circulating gas; High temperature semicoke with roasting kiln (1) input is made thermal barrier, forms gas-insulated and material round-robin circulating fluidized bed combustion-gasification process process between two bodies of heater.The present invention has fundamentally broken through and has had only the hydrogen of feeding or oxygen to make the limitation that liquid agent could be produced hydropyrolysis coal gas traditional technology.The factor of created gase and the calorific value of this technology are higher than traditional technology, and technology is easy, are suitable for the coal wide ranges, and product pneumatolytic branch can be adjusted, and can be widely used in civilian, industrial, chemosynthesis every field.
Description
The invention belongs to fine coal hydrogasification technical field.
At present, for producing hydropyrolysis coal gas, the method that generally adopts is both at home and abroad: feed hydrogen or oxygen and steam as liquid agent in the hydrogasification stove.Carry out the hydropyrolysis reaction, need supporting hydrogen manufacturing or oxygen generating plant, so processing unit is complicated, cost is higher.
The objective of the invention is by gas-insulated between a kind of two bodies of heater and the material round-robin follows fluidized-bed combustion heating-gasifying process process.The waste water that only feeds purification section in the hydrogasification stove produces steam and feeds circulating gas, makes liquid agent simultaneously, and need not to feed the more expensive hydrogen of price or oxygen just can be produced cheap hydropyrolysis coal gas.
Accompanying drawing is a process flow sheet of the present invention.
The main flow process of powder coal heat-carrying agent hydro gasifying process is: be liquid agent with the air, produce the high temperature semicoke in thermal medium heater (1), by carrier pipe (2), circulating gas XM
1Form little fluidized-bed as liquid agent, be transported to the hypomere of hydrogasification stove (9), run into from hydrogasification stove (8) and spray into steam that waste water produced and tar fog in the stove, water-gas reaction takes place, the gain of heat simultaneously is to produce hydrogen-rich gas; During the rich gas that produces rises in hydrogasification stove (9) during warm semicoke section, run into the fine coal of 2. importing by circulating gas XM through defeated device for coal (11), quick hydropyrolysis reaction takes place, middle temperature semicoke and hydropyrolysis coal gas that flash distillation obtains, when methane wherein, hydrocarbon gas do not begin the secondary decomposition, just from hydrogasification stove (9), enter in the cyclonic separator (10).Hydropyrolysis coal gas removes cleaning section as product gas (12), be lower than the low temperature semicoke of temperature of reaction in isolated semicoke and the hydrogasification stove, send in the grey pulp separator (5) by spiral conveyer (7) through cooling, carry in the return load body process furnace (1) through riser tube (4).The low temperature semicoke is heated to form the high temperature semicoke, comes in the hydrogasification stove under carrier pipe (2) is carried again, carries out next technological cycle process.
The flue gas and the flying dust that are produced in the thermal medium heater (1) enter into cyclonic separator (3), emptying after dedusting reaches environmental requirement; Cyclonic separator (3) revolves the flying dust of telling (13) is drained.The lime-ash that produces in the process furnace, enter carrier pipe (4) after, enter grey separator (5) through heat exchange and be separated, discharge by spiral conveyer (6).
In whole technology, material is round-robin all the time, and gas then by isolated, has guaranteed that like this product gas is not by airborne nitrogen and flue gas dilution between two bodies of heater.Simultaneously in order to adapt to different coals, two e Foerderanlages that little fluidized-bed of 2. being controlled by XM and spiral conveyer (7) are formed can be effectively be controlled at 1 with the ratio of coal dust operational throughput and thermal barrier internal circulating load: 8-1: between 50.The characteristics of this technology maximum are: hydrogasification stove (9) is to make liquid agent with circulating gas and waste water simultaneously at body of heater hypomere institute producing steam, (and squeezing into the tar light oil gasification gain of heat).Thermal medium heater is made liquid agent with air, forms between one two body of heater the isolated mutually and working cycle of material round-robin circulating fluidized bed combustion heating-gasifying process of gas.
Claims (3)
1, a kind of powder coal heat-carrying agent hydro gasifying process, its used equipment is mainly by the hydrogasification stove (9) of thermal medium heater (1), carrier pipe (2), spiral conveyer (7), (6), defeated device for coal (11) is formed, feature of the present invention is: the high temperature semicoke in the thermal medium heater (1) is through carrier pipe (2), be delivered to the hypomere of hydrogasification stove (9) by self-produced circulating gas, after meeting the steam of the waste water product of (8) locating to enter, water-gas reaction takes place, again with the tar light oil gain of heat of gasifying, during the hydrogen-rich gas that produces rises to after the warm semicoke section, 2. the fine coal of squeezing into circulating gas XM mixes fluidisation, quick flash distillation hydropyrolysis reaction takes place, and forms the hydrogasification section.Heat from hydrogenation coal gas that is produced and low temperature semicoke enter in the cyclonic separator (10) in the lump, product gas (12) wherein removes cleaning section, (10) and the low temperature semicoke in (9) then pass through spiral conveyer (7) and get back to again in the thermal medium heater (1), repeat heating, form gas-insulated and material round-robin circulating fluidized bed combustion-gasifying process process between one two body of heater.
2, according to claims 1 said technology, it is characterized in that: add hydrogenation furnace (9) and only make liquid agent simultaneously at body of heater hypomere institute producing steam with circulating gas and washes.
According to claims 1 said technology, it is characterized in that 3, gas-insulated property and material cyclicity in the ciculation fluidized process between carrier pipe (2) and spiral conveyer (7) formation two bodies of heater satisfy condition simultaneously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93103798 CN1095093A (en) | 1993-04-21 | 1993-04-21 | Powder coal heat-carrying agent hydro-gasification process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93103798 CN1095093A (en) | 1993-04-21 | 1993-04-21 | Powder coal heat-carrying agent hydro-gasification process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1095093A true CN1095093A (en) | 1994-11-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93103798 Pending CN1095093A (en) | 1993-04-21 | 1993-04-21 | Powder coal heat-carrying agent hydro-gasification process |
Country Status (1)
| Country | Link |
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| CN (1) | CN1095093A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101362955B (en) * | 2007-08-08 | 2012-03-07 | 中国科学院工程热物理研究所 | Pyrolysis method and device of low speed bed |
| CN103923705A (en) * | 2014-03-25 | 2014-07-16 | 东南大学 | Device and method for preparing hydrogen-rich gas by gasifying biomass |
-
1993
- 1993-04-21 CN CN 93103798 patent/CN1095093A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101362955B (en) * | 2007-08-08 | 2012-03-07 | 中国科学院工程热物理研究所 | Pyrolysis method and device of low speed bed |
| CN103923705A (en) * | 2014-03-25 | 2014-07-16 | 东南大学 | Device and method for preparing hydrogen-rich gas by gasifying biomass |
| CN103923705B (en) * | 2014-03-25 | 2016-01-06 | 东南大学 | Gasifying biomass produces the device and method of hydrogen-rich gas |
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| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |