CN105505467A - Coupling technology adopting lignite-gasification gas production and dry distillation upgrading - Google Patents
Coupling technology adopting lignite-gasification gas production and dry distillation upgrading Download PDFInfo
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- CN105505467A CN105505467A CN201510889782.3A CN201510889782A CN105505467A CN 105505467 A CN105505467 A CN 105505467A CN 201510889782 A CN201510889782 A CN 201510889782A CN 105505467 A CN105505467 A CN 105505467A
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
- C10J3/02—Fixed-bed gasification of lump fuel
- C10J3/06—Continuous processes
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B49/00—Destructive distillation of solid carbonaceous materials by direct heating with heat-carrying agents including the partial combustion of the solid material to be treated
- C10B49/02—Destructive distillation of solid carbonaceous materials by direct heating with heat-carrying agents including the partial combustion of the solid material to be treated with hot gases or vapours, e.g. hot gases obtained by partial combustion of the charge
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B53/00—Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
- C10J3/02—Fixed-bed gasification of lump fuel
- C10J3/20—Apparatus; Plants
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
- C10J3/72—Other features
- C10J3/82—Gas withdrawal means
- C10J3/84—Gas withdrawal means with means for removing dust or tar from the gas
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2300/00—Details of gasification processes
- C10J2300/09—Details of the feed, e.g. feeding of spent catalyst, inert gas or halogens
- C10J2300/0913—Carbonaceous raw material
- C10J2300/093—Coal
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2300/00—Details of gasification processes
- C10J2300/09—Details of the feed, e.g. feeding of spent catalyst, inert gas or halogens
- C10J2300/0953—Gasifying agents
- C10J2300/0973—Water
- C10J2300/0976—Water as steam
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2300/00—Details of gasification processes
- C10J2300/16—Integration of gasification processes with another plant or parts within the plant
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
- Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Combustion & Propulsion (AREA)
- Materials Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Industrial Gases (AREA)
Abstract
The invention provides a coupling technology adopting lignite-gasification gas production and dry distillation upgrading. A coal gasification device and a coal-produced semi-coke dry distillation device are connected in series for use, high-temperature synthesis gas produced from coal after gasification in a gasification furnace directly enters a dry distillation furnace, is taken as a dry distillation heat-carrying gas and is sufficiently contacted with the coal in the dry distillation furnace, H2O and CO2 in the synthesis gas are contacted with a hot carbon material for further reaction, effective gas composition in the synthesis gas is increased, and a semi-coke product, coal tar and dry distillation gas are obtained through pyrolysis and dry distillation upgrading of the coal. The semi-coke product is collected from the bottom of the dry distillation furnace, a mixture of the coal tar, the dry distillation gas and the synthesis gas is collected from the top of the dry distillation furnace, and a coal tar product and a synthesis gas product are obtained through cooling separation. Compared with a simple lignite-gasification gas production technology, the effective gas composition of the produced synthesis gas is higher, the CO2 emission proportion of a traditional coal gasification technology can be reduced, the heat of the whole technological procedure is sufficiently utilized, additional heat input is not required for semi-coke production through dry distillation of the coal, and the energy utilization efficiency is high.
Description
Technical field
The invention belongs to technical field of coal chemical industry, particularly a kind of brown coal hydrogasification gas and destructive distillation upgrading coupling technique.
Background technology
Semicoke is commonly called as blue charcoal, the solid product that the bituminous coal being generally mud coal, brown coal and high volatile obtains through low-temperature pyrolysis, the development of semicoke industry in China through the more than ten years, define and comprised MAGNESIUM METAL based on the dry distillation of coal, iron alloy, chemical fertilizer, the industrial chain of the high energy such as calcium carbide and generating industry.But semicoke industrial organization structure is concentrated lower at present, Enterprises Distribution disperses, and lacks the comprehensive utilization of synchronous necessary resources.
China's Coal Chemical Industry develop rapidly in recent years, bituminous coal, the high-quality resources such as hard coal are utilized in a large number, and moving towards exhaustion is inexorable trend.The lignite resource of China enriches, and explored retained reserve reaches 1,303 hundred million tons, accounts for 17% of national coal reserves, in coal resources in China, occupies critical role.Development brown coal hydrogasification, brown coal upgrading, expands brown coal and utilizes space to be one of current China Policy of Technology For Energy Saving direction of first developing
Semicoke process is respectively two independently systems, and coal semicoke system gas retort needs to consume a large amount of coal combustion flue gas and does thermal source, a large amount of CO
2and pollutant emission, system complex, invests high.In gas maked coal process, send into downstream section after the high-temperature synthesis gas that gasification produces needs to carry out dedusting cooling, there is heat recuperation insufficient, power loss is larger.
Patent CN103421546A proposes the combination process of a kind of dry distillation of coal process and carbon material gasification, semicoke low pressure gas retort and the series connection of semicoke gas low pressure gasifying stove is used, achieves integrated energy-conservation.But gasification need adopt the gasified boiler system of two kinds of operational conditions, need produce normal temperature gasification gas and coal gas of high temperature respectively, system configuration is more complicated.In addition, zoom that gas retort produces enters gasifier system gas again, decreases semicoke output.
The present invention proposes a kind of brown coal hydrogasification gas and destructive distillation upgrading coupling technique, gasification vapourizing furnace and the series connection of coal semicoke gas retort are used, the high-temperature synthesis gas produced after coal gasifies in vapourizing furnace directly enters gas retort as destructive distillation heat-carrying gas, fully contact in gas retort with coal, the H in synthetic gas
2o and CO
2contact with hot carbon and react further, improve the effective gas composition in synthetic gas, coal pyrolysis destructive distillation upgrading obtains semicoke product, coal tar and dry distillation gas.Semicoke product is from extraction bottom gas retort, and coal tar, dry distillation gas and syngas mixture, from the extraction of gas retort top, cool and isolate coal-tar products and synthetic gas product.
The exploitation of this novel process solves the utilization of low-rank coal very well, will play promoter action to the production taking brown coal as the large Chemicals of raw material.The synthetic gas produced is compared with simple brown coal hydrogasification gas-made technology, and effective gas composition is higher, can reduce the CO in traditional coal gasifying process
2discharge ratio, whole technical process heat makes full use of, and energy utilization efficiency is high, meets national green energy development direction.
Summary of the invention
The present invention proposes a kind of brown coal hydrogasification gas and destructive distillation upgrading coupling technique, gasification vapourizing furnace and the series connection of coal semicoke gas retort are used, the high-temperature synthesis gas produced after coal gasifies in vapourizing furnace directly enters gas retort as destructive distillation heat-carrying gas, fully contact in gas retort with coal, the H in synthetic gas
2o and CO
2contact with hot carbon material and react further, improve the effective gas composition in synthetic gas, coal pyrolysis destructive distillation upgrading obtains semicoke product, coal tar and dry distillation gas.Semicoke product from extraction bottom gas retort, coal tar, dry distillation gas and syngas mixture, from the extraction of gas retort top, cool and isolate coal-tar products and synthetic gas product, and the concrete technical scheme of employing is as follows:
A kind of brown coal hydrogasification gas and destructive distillation upgrading coupling technique, comprise the steps:
Step 1: feed coal is divided into two portions, a part enters vapourizing furnace, and a part enters gas retort;
Step 2: enter the feed coal of vapourizing furnace and oxygenant and some vapor and carry out gasification reaction in vapourizing furnace, produce high-temperature synthesis gas;
Step 3: the high-temperature synthesis gas that step 2 produces directly enters gas retort by the communicating pipe between vapourizing furnace and gas retort, and feed coal is synthesized gas destructive distillation and decomposites coal tar, dry distillation gas and semicoke in gas retort, the H in this process in high-temperature synthesis gas
2o and CO
2contact with hot carbon material and react further, generate H
2, CO, in effective increase synthetic gas, effectively gas forms, and reduces CO in synthetic gas
2content, reduces downstream section CO
2quantity discharged, and semicoke is by the cooling of semicoke passivation refrigerating unit;
Step 4: the coal tar obtained in step 3, dry distillation gas and the synthetic gas entered are discharged from gas retort and are entered cyclone separator, gas and oil separating plant is entered after separating solid particulate matter and thin ash, coal tar is separated with dry distillation gas with synthetic gas, vapourizing furnace closes high temperature and becomes gas directly to enter gas retort, vapourizing furnace does not need to carry out dedusting, and the coal tar that the high-temperature synthesis gas that vapourizing furnace produces produces in gas retort, dry distillation gas is after cyclonic separation and gas-oil separation, compared to traditional coal gasification apparatus, in synthetic gas composition, effectively Gas content is high, and gas retort outlet cyclone separator, effectively reduce the solid particulate in synthetic gas and coal tar, dustiness in the finished product gas and coal tar is reduced,
Step 5: in step 4, isolated solid particulate matter and thin ash return vapourizing furnace circulating reaction, the unreacted that step 4 cyclone separator separates completely solid particulate returns vapourizing furnace and gasifies, and effectively can improve the overall carbon of device and reclaim and transformation efficiency.
Need to carry out drying before described step 1 feed coal enters gas retort, and determine according to feed coal moisture content the need of carrying out drying, this pre-drying process can reduce gas retort energy consumption, make dry distillation efficiency higher, drying source derives from semicoke passivation refrigerating unit or gas and oil separating plant institute byproduct steam.
Vapourizing furnace pressure can regulate according to required synthetic gas and coal tar component requirements difference, vapourizing furnace vapor pressure controls at normal pressure-4.0MPaG, vapourizing furnace can be regulated by vapourizing furnace reaction oxygen/air and quantity of steam according to gas retort is temperature required, meet the temperature requirement of gas retort thermal source gas, vapourizing furnace temperature out general control is at 700-1100 DEG C.
According to destructive distillation feed coal size, gas retort can adopt bottom discharge formula gas retort or top discharge gas retort, and the feed coal that particle diameter is little adopts top discharge gas retort, and the feed coal that particle diameter is large adopts bottom discharge formula gas retort.
Gas retort working pressure also can regulate according to required synthetic gas and coal tar component requirements difference, and gas retort destructive distillation pressure-controlling is at normal pressure-4.0MPaG.
Feed coal described in step 1 is one or more in brown coal, bituminous coal, hard coal.
Described semicoke passivation refrigerating unit, adopts rare gas element to carry out passivation cooling to semicoke.Described rare gas element is discharged after heat by waste heat boiler byproduct steam, circulates to carry out passivation cooling to semicoke.
Oxygenant described in step 2 is oxygen or air, and preferably adopts oxygen, and effectively can reduce gasification and destructive distillation device size, the effective Gas content of product synthetic gas is high.
Gasification reaction described in step 2 can adopt fluidized-bed, fixed bed or entrained flow gasification mode to carry out.
This technique product synthetic gas can carry out the synthesis of Chemicals, be generally used for methyl alcohol, synthetic natural gas, synthetic oil, synthetic ammonia etc.
Beneficial effect of the present invention is: the present invention well solves the utilization of low-rank coal, will play promoter action to the production taking brown coal as the large Chemicals of raw material.The synthetic gas produced is compared with simple brown coal hydrogasification gas-made technology, and effective gas composition is higher, can reduce the CO in traditional coal gasifying process
2discharge ratio, whole technical process heat makes full use of, and energy utilization efficiency is high, meets national green energy development direction.
Accompanying drawing explanation
Fig. 1 is semicoke bottom discharge formula gasification gas of the present invention and destructive distillation upgrading coupling technique schema
Fig. 2 is semicoke top discharge gasification gas of the present invention and destructive distillation upgrading coupling technique schema
Marginal data: 1, vapourizing furnace, 2, top discharge gas retort or bottom discharge formula gas retort, 3, cyclone separator, 4, gas and oil separating plant, 5, drying installation, 6, semicoke passivation refrigerating unit, 7, waste heat boiler
A, feed coal, B, oxygen or air, C, steam, D, semicoke, E, coal tar, F, product synthetic gas, G, gasification lime-ash
Embodiment
The technique means realized to make the present invention, creation characteristic, reaching object and effect is easy to understand, below the specific embodiment of the present invention being described further, but not limiting protection scope of the present invention.The parameter area that embodiment uses, when not affecting the inventive method and normally implementing, all can replace mutually, still can reach technique effect of the present invention.
Embodiment 1:
Particle diameter is the raw material brown coal A being less than 20mm, and water content is 10%.Feed coal A is divided into two-way, the first via enters vapourizing furnace 1 after simple raw coal fragmentation, with together with the oxygen B of air separation facility and supplementary some vapor C, enter fluidized-bed gasification furnace 1 carry out gasification reaction, vapourizing furnace 1 central reaction temperature is 1000 DEG C, vapor pressure is 1.0MPaG, carbon in coal, in the environment of high temperature and oxygen, reacts rapidly, produces with CO, H
2and methane is main synthetic gas.There is gas distributor bottom vapourizing furnace 1, ensure the smooth stable and uniform of fluidized in vapourizing furnace 1.Gasification reaction produces the high-temperature synthesis gas of about 900 DEG C through directly entering gas retort 2 bottom gas sparger top of gasification furnace communicating pipe.The gasification lime-ash G that gasification reaction produces discharges through the continuous dry method of vapourizing furnace bottom driving device, and slag discharging device comprises water jacket, and solid-state dry ash is down to about 60 DEG C and is discharged continuously after water jacket cooling.Vapourizing furnace 1 adopts the mode of dry method dry ash extraction, does not produce waste water, environmental friendliness.
Gas retort 2, after raw coal drying installation 5, is sent into after brown moisture in coal being down to about 2% continuously in another road.After the high-temperature synthesis gas that vapourizing furnace 1 produces enters gas retort 2, after gas retort 2 bottom gas sparger is evenly distributed, synthetic gas fully contacts with dried feed coal, carries out destructive distillation as destructive distillation thermal source to coal, and coal mainly produces following decomposition course at gas retort 22 from top to down:
1. kinetics: at the retorting operation initial stage, temperature is relatively low, and first organism dewaters, along with temperature raises, decomposes gradually and produces low molecular weight volatile thing.
2. pyrolysis: along with the continuation of pyrolysis temperature raises, namely there is pyrolysis in the fracture of the macromole generation key in organism, obtains fluid organic material (comprising tar).
3. condensation and carbonization: along with the precipitation of water and organic steam, surplus materials is heated and is condensed into colloid.Meanwhile, the volatile matter of precipitation reduces gradually, and colloid solidifies and carbonization gradually.Along with pyrolysis temperature increases and the prolongation of process, the carbon content in the solid product generated increases gradually, and other constituent contents such as hydrogen, oxygen, nitrogen and sulphur reduce gradually.
The terminal temperature of the dry distillation of coal is at about 380-450 DEG C, and the oil gas (being mainly the compositions such as benzene, toluene, naphthalene, anthracene, phenol) of coal tar is with synthetic gas (CO, H
2, CH
4deng) and the coal dust at the place of carrying secretly enter cyclone separator 3 and carry out gas solid separation, send into vapourizing furnace 1 fluidized-bed inside after coal dust is separated and carry out gasification reaction.Coal tar oil gas and synthetic gas enter gas and oil separating plant 4, after by-product some vapor and further cooling, isolate product coal tar E and product synthetic gas F.
The red-hot semicoke in coal carbonization furnace 2 bottom enters semicoke passivation refrigerating unit 6 by bottom driving device, utilizes inertia circulation gas to carry out semicoke passivation cooling, and output semicoke D.Thermal cycling rare gas element enters waste heat boiler 7 byproduct steam, returns semicoke passivation refrigerating unit 6 and recycle after cooling.
The steam of semicoke passivation cooling and gas-oil separation institute by-product, for the drying of feed coal, rich steam is sent outside for the whole audience.
In this example vapourizing furnace day coal feeding amount 1000 tons, gas retort day coal feeding amount 950 tons.
Equipment of the present invention is described by specific embodiment.Those skilled in the art can use for reference the links such as content appropriate change device structure of the present invention, equipment connection, processing step and realize other object corresponding, its relevant change does not all depart from content of the present invention, all similar replacements and change will become apparent to those skilled in the art that and be all deemed to be included within scope of the present invention.
Claims (10)
1. brown coal hydrogasification gas and a destructive distillation upgrading coupling technique, is characterized in that, comprise the steps:
Step 1: feed coal is divided into two portions, a part enters vapourizing furnace, and a part enters gas retort;
Step 2: enter the feed coal of vapourizing furnace and oxygenant and some vapor and carry out gasification reaction in vapourizing furnace, produce high-temperature synthesis gas;
Step 3: the high-temperature synthesis gas that step 2 produces directly enters gas retort by the communicating pipe between vapourizing furnace and gas retort, feed coal is synthesized gas destructive distillation and decomposites coal tar, dry distillation gas and semicoke in gas retort, and semicoke is by the cooling of semicoke passivation refrigerating unit;
Step 4: the coal tar obtained in step 3, dry distillation gas and the synthetic gas entered are discharged from gas retort and entered cyclone separator, enter gas and oil separating plant, be separated by coal tar with synthetic gas with dry distillation gas after separating solid particulate matter and thin ash;
Step 5: in step 4, isolated solid particulate matter and thin ash return vapourizing furnace circulating reaction.
2. a kind of brown coal hydrogasification gas according to claim 1 and destructive distillation upgrading coupling technique, it is characterized in that, need to carry out drying before described step 1 feed coal enters gas retort, drying source derives from semicoke passivation refrigerating unit or gas and oil separating plant institute byproduct steam.
3. a kind of brown coal hydrogasification gas according to claim 1 and destructive distillation upgrading coupling technique, is characterized in that, vapourizing furnace vapor pressure described in step 1 is normal pressure-4.0MPaG, and vapourizing furnace temperature out is 700-1100 DEG C.
4. a kind of brown coal hydrogasification gas according to claim 1 and destructive distillation upgrading coupling technique, is characterized in that, gas retort described in step 1 can adopt bottom discharge formula gas retort or top discharge gas retort.
5. a kind of brown coal hydrogasification gas according to claim 1 and destructive distillation upgrading coupling technique, is characterized in that, described in step 1, gas retort destructive distillation pressure is normal pressure-4.0MPaG.
6. a kind of brown coal hydrogasification gas according to claim 1 and destructive distillation upgrading coupling technique, is characterized in that, feed coal described in step 1 is one or more in brown coal, bituminous coal, hard coal.
7. a kind of brown coal hydrogasification gas according to claim 1 and destructive distillation upgrading coupling technique, is characterized in that, described semicoke passivation refrigerating unit, adopts rare gas element to carry out passivation cooling to semicoke.
8. a kind of brown coal hydrogasification gas according to claim 7 and destructive distillation upgrading coupling technique, is characterized in that, described rare gas element is discharged after heat by waste heat boiler byproduct steam, circulates to carry out passivation cooling to semicoke.
9. a kind of brown coal hydrogasification gas according to claim 1 and destructive distillation upgrading coupling technique, is characterized in that, oxygenant described in step 2 is oxygen or air.
10. a kind of brown coal hydrogasification gas according to claim 1 and destructive distillation upgrading coupling technique, is characterized in that, gasification reaction described in step 2 can adopt fluidized-bed, fixed bed or entrained flow gasification mode to carry out.
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105861071A (en) * | 2016-06-02 | 2016-08-17 | 哈尔滨工业大学 | Composite biomass graded gasification furnace |
| CN105925289A (en) * | 2016-07-13 | 2016-09-07 | 陕西首信实业有限公司 | Apparatus for preparing low-tar fuel gas through combining gasification and dry distillation |
| CN106479574A (en) * | 2016-12-13 | 2017-03-08 | 神雾环保技术股份有限公司 | Coal gasification and calcium carbide smelt the system of coupling and with its calcium carbide processed and the method for coal gas |
| CN106987281A (en) * | 2017-05-25 | 2017-07-28 | 北京神雾电力科技有限公司 | The method of pulverized coal pyrolysis gasification integrated reactor and processing fine coal |
| CN108865306A (en) * | 2018-06-27 | 2018-11-23 | 新奥科技发展有限公司 | A kind of coke discharging and coupling technique is slurried |
| CN109652103A (en) * | 2017-10-12 | 2019-04-19 | 中国石油化工股份有限公司 | Down-flow fluidized bed using ECT-fixed-bed pyrolysis-gasification integral method and device |
| CN109652104A (en) * | 2017-10-12 | 2019-04-19 | 中国石油化工股份有限公司 | Down-flow fluidized bed using ECT-air flow bed is pyrolyzed-gasifies integral method and device |
| CN112159686A (en) * | 2020-09-16 | 2021-01-01 | 中国科学院广州能源研究所 | Method and device for co-production of oil gas by pyrolysis and gasification of mineralized garbage in landfill |
| CN115322813A (en) * | 2022-08-11 | 2022-11-11 | 李冶 | Integrated coal conversion device and conversion method thereof |
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