CN105713674B - A kind of pulverized coal pyrolysis liquefaction preparing natural gas reactor - Google Patents
A kind of pulverized coal pyrolysis liquefaction preparing natural gas reactor Download PDFInfo
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- CN105713674B CN105713674B CN201610260561.4A CN201610260561A CN105713674B CN 105713674 B CN105713674 B CN 105713674B CN 201610260561 A CN201610260561 A CN 201610260561A CN 105713674 B CN105713674 B CN 105713674B
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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
- C10J3/46—Gasification of granular or pulverulent flues in suspension
- C10J3/48—Apparatus; Plants
-
- 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
- C10G1/00—Production of liquid hydrocarbon mixtures from oil-shale, oil-sand, or non-melting solid carbonaceous or similar materials, e.g. wood, coal
- C10G1/06—Production of liquid hydrocarbon mixtures from oil-shale, oil-sand, or non-melting solid carbonaceous or similar materials, e.g. wood, coal by destructive hydrogenation
-
- 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
- C10J3/74—Construction of shells or jackets
- C10J3/76—Water jackets; Steam boiler-jackets
-
- 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
-
- 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
- C10J2300/0959—Oxygen
-
- 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
- C10J2300/164—Integration of gasification processes with another plant or parts within the plant with conversion of synthesis gas
- C10J2300/1656—Conversion of synthesis gas to chemicals
- C10J2300/1659—Conversion of synthesis gas to chemicals to liquid hydrocarbons
Abstract
A kind of pulverized coal pyrolysis liquefaction preparing natural gas reactor, is related to coal gasification and pyrolytic technique, solves the technical issues of existing fluidized bed pyrolysis equipment is huge, and production capacity is small, oil product low yield, oil gas dustiness is high.The present invention includes：Water-cooling wall vaporizer, coal hydrogenation pyrolysis reative cell, cyclone separator, water-cooling wall vaporizer are equipped with hydrogen feedstock entrance, water-cooling wall are set, and connect with slag bath in water-cooling wall vaporizer, and middle part is equipped with and presses nitrogen endless tube, and water-bath ring is equipped with above slag bath；Water-cooling wall vaporizer is connected by undergauge appendix with coal hydrogenation pyrolysis reative cell, coal nozzle is equipped at the top of coal hydrogenation pyrolysis reative cell, lower part is equipped with coolant jet, bottom is connected with cyclone separator, cyclone separator bottom connection semicoke collection device, top connection crude oil gas subsequent purification processing system.The advantages of present invention is used for coal liquifaction gas, has reasonable design, compact-sized, and product oil gas is clean, and oil product yield is high.
Description
Technical field
The invention belongs to coal gasifications and pyrolytic technique field, and in particular to a kind of pulverized coal pyrolysis liquefaction/natural gas reaction
Device.
Background technology
With the rapid development of the national economy, China's oil consumption figure increases rapidly.Oil belongs to the safe object of national strategy
Money, and China is the opposite country lacked of petroleum resources, in order to reduce the dependence to Imported oil, China is implementing polynary
Change energy strategy.It is one of countermeasure for implementing national energy diversification strategy to develop clean coal technology.Wherein, pulverized coal pyrolysis technology
It is a kind of competitive clean coal technology because method is relatively easy, investment is relatively low.
Both at home and abroad typical pyrolytic process of coal include the vertical furnace technology of outer heat, the vertical furnace technology of interior heat, the U.S. Garrett
Technique and TOSCOAL techniques, the coal fast pyrolysis process of Japan, the LR techniques of Germany, the fluid bed fast pyrolysis of Australia
Technique, former Soviet Union 3TX (ETCh) -175 technique, the fluidized bed pyrolysis technique of China, DG techniques and multistage revolution furnace technology etc..
Existing fluidized bed pyrolysis technique is using fine coal as raw material, and gas carries out fluidisation pyrolysis as fluidizing agent to fine coal,
Its shortcoming one is that the yield of oil product is very low, usually only 3~6%, second is that being limited by dedusting technology, dustiness in oil product
Higher, following process intractability is very big.In addition, existing pyrolytic technique is all substantially normal pressure, low-temperature operation, equipment size is big,
Plant capacity is low, and economy is poor.
Invention content
The shortcomings that it is an object of the invention to overcome the prior art, provides a kind of pulverized coal pyrolysis liquefaction preparing natural gas reaction
Device solves the technical issues of existing fluidized bed pyrolysis equipment is huge, and production capacity is small, oil product low yield, oil gas dustiness is high.
The present invention is achieved by the following technical solutions：
A kind of pulverized coal pyrolysis liquefaction preparing natural gas reactor, including：Water-cooling wall vaporizer, coal hydrogenation pyrolysis reative cell,
Cyclone separator, the water-cooling wall vaporizer top are equipped with the entrance of hydrogen feedstock oxygen and coal dust, the water-cooling wall vaporizer
Water-cooling wall is inside set, is connected below the water-cooling wall through channel with slag bath, the water-cooling wall gasifies chamber interior walls as refractory brick, the water
Divider wall is built into refractory brick in the middle part of cold wall vaporizer, is equipped at the top of the divider wall and presses nitrogen endless tube, on the slag bath
Side is equipped with water-bath ring, and undergauge appendix, the undergauge appendix and coal hydrogenation heat are connected in the middle part of the water-cooling wall vaporizer
Reative cell connection is solved, coal nozzle, the coal hydrogenation pyrolysis reative cell lower side are equipped at the top of the coal hydrogenation pyrolysis reative cell
Face is equipped with coolant jet, and the coal hydrogenation pyrolysis reative cell bottom is connected with the cyclone separator, the cyclone separator
Bottom connects semicoke collection device, and crude oil gas subsequent purification processing system is connected at the top of the cyclone separator.
Further, the pressure nitrogen endless tube is equipped with hundreds of nitrogen injection holes.
Further, the water-bath ring is equipped with dozens of and tilts wide-angle atomizer.
The course of work of the present invention：
It is sent into water wall gasifier together as the oxygen of hydrogen feedstock and the coal dust of Geldart-D particle, height is made after burning
Temperature, high hydrogen concentration, high flow rate pyrolysis synthesis gas；After synthesis gas penetrating slag bath is removed the gred and cooled down, with the gas being exceedingly fast
Speed sprays into coal hydrogenation pyrolysis reative cell and coal dust completes deep hydrogenation pyrolytic reaction in several milliseconds of clocks；Pyrolytic reaction product is 1
At once by cooling agent (water vapour or the synthesis gas of downstream return can be used) cooling after~2 seconds, it is suppressed that the hair of secondary side reaction
It is raw；After thermal decomposition product after cooling enters cyclone separator, solid particle is thrown to by the effect of centrifugal force on wall, and about 98%
Semicoke detached from gas, the semicoke separated is sent other devices outside and is used as product；Go out at the top of cyclone separator
Crude oil gas then regard downstream require, carry out subsequent purification processing after for downstream produce oil product/natural gas.
The present invention has the following advantages and beneficial effect：
The present invention functionally incorporates top spray downlink water chilling-type water wall gasifier, coal hydrogenation pyrolysis reative cell, rotation
Wind separator is substantially reduced equipment and associated conduit, the direct investment of instrument, valve.
The present invention reactor wall be built into using refractory brick, have it is easy to process, heat storage capacity is strong, prevent outer wall overtemperature
The advantages of.
The present invention operates at elevated pressures, is conducive to improve production capacity.
The present invention has reasonable design, compact-sized, product oil gas is clean, oil product for coal liquifaction gas producing technology field
The advantages of yield is high.
Description of the drawings
Fig. 1 is a kind of structure diagram of pulverized coal pyrolysis liquefaction preparing natural gas reactor；
Fig. 2 is the A-A sectional views (sectional view for pressing nitrogen endless tube) of Fig. 1；
Fig. 3 is the B-B sectional views (sectional view of water-bath ring) of Fig. 1；
Fig. 4 is the C-C sectional views (sectional view of cyclone separator) of Fig. 1.
Specific embodiment
Technical scheme of the present invention is clearly and completely described below in conjunction with attached drawing, it is clear that described implementation
Example is only a present invention part, and based on the embodiments of the present invention, those of ordinary skill in the art are not making creativeness
The other embodiment obtained under the premise of labour, belongs to the scope of the present invention.
As shown in Figure 1,2,3, 4, a kind of pulverized coal pyrolysis liquefaction preparing natural gas reactor, including：Water-cooling wall vaporizer 1,
Coal hydrogenation pyrolysis reative cell 9, cyclone separator 11,1 top of the water-cooling wall vaporizer are equipped with hydrogen feedstock oxygen and coal dust
Entrance sets water-cooling wall 2 in the water-cooling wall vaporizer 1, and the water-cooling wall 2 connects below through channel with slag bath 6, the water-cooling wall
1 inner wall of vaporizer is refractory brick 3, and 1 middle part of water-cooling wall vaporizer is built into divider wall 12 with refractory brick, in the isolation wall top
Portion is equipped with pressure nitrogen endless tube 4, and 6 top of slag bath is equipped with water-bath ring 5, and the 1 middle part connection undergauge of water-cooling wall vaporizer is defeated
Tracheae 7, the undergauge appendix are connected with the coal hydrogenation pyrolysis reative cell 9, and 9 top of coal hydrogenation pyrolysis reative cell is equipped with
Coal nozzle 8,9 lower side of coal hydrogenation pyrolysis reative cell are equipped with coolant jet 10, the coal hydrogenation pyrolysis reative cell 9
Bottom is connected with the cyclone separator 11, and 11 bottom of cyclone separator connects semicoke collection device, the cyclonic separation
11 top connection crude oil gas subsequent purification processing system of device.
The pressure nitrogen endless tube 4 is equipped with hundreds of nitrogen injection holes.
The water-bath ring 5 is equipped with dozens of and tilts wide-angle atomizer.
Water-cooling wall vaporizer 1 uses top spray downlink water chilling-type structure, is adapted to various coals, it might even be possible to locate easily
The colm that various ash fusion points are higher than 1500 degree is managed, meets the actual conditions that China's coal is numerous and diverse, coal quality fluctuation is larger, it can be substantially
The online rate of device is improved, realizes the long-term operation of factory.
Water-cooling wall vaporizer 1 directly burns using coal and oxygen as raw material in stove, and it is molten that incomplete oxidation reaction generation occurs
Melt state slag and using CO+H2 as the synthesis gas mainly formed, flowed downward together into slag bath 6, it is anxious after liquid slag falls into slag bath water
Cold curing is fragmented into small slag particle, is discharged after sedimentation from vaporizer bottom, and the synthesis gas shower water that then uplink is sprayed by water-bath ring 5 presses down
Dirt sends to coal hydrogenation pyrolysis reative cell 9 after cooling.
1 internals of water-cooling wall vaporizer are 2 structure of water-cooling wall, after coal burns indoors, combustible constituent generation synthesis gas, and nothing
The substance (i.e. usually said ash content) of method burning is then molten into liquid at high temperature, can be evenly distributed in table in water-cooling wall
Face forms protective slag blanket, realizes that, with the purpose of slag anti-slag, liquid slag flows under the influence of gravity into slag bath 6.
Slag bath 6 is fabricated using Ni-based steel, other than it can cope with about 1400 degree of high temperature hydrogen containing synthesis gas, is additionally operable to
Refractory brick and slag bath water is isolated, makes refractory brick from being ruptured after contacting liquid water under high temperature red heat state, influences fire resisting
The service life of brick.
To prevent vaporizer top overtemperature, divider wall 12 is built into refractory brick for heat-insulated in the middle part of vaporizer, for avoid every
It is excessive from pressure difference above and below wall to lead to breakage, pressure nitrogen endless tube 4 is equipped at the top of divider wall and, for being passed through nitrogen into annular space, is protected
Demonstrate,proving divider wall, pressure difference is normal up and down.
Pressure nitrogen endless tube 4 is equipped with hundreds of nitrogen injection holes (see the A-A sectional views of Fig. 1), for ensureing be filled with
During nitrogen tolerance will not excessive or mass flow discrepancy it is even, cause divider wall local damage.
Synthesis gas, by one misty water spray dust suppression from water-bath ring 5, cooling, by spray, can have when going out slag bath 6
Effect reduces the ash quantity carried secretly in synthesis gas, smaller to the qualitative effects of the semicoke product of the output after pyrolysis, is conducive to semicoke
Using.
Water-bath ring 5 is equipped with the inclined wide-angle atomizer of dozens of (see the B-B sectional views of Fig. 1), for ensuring to spray
The water gone out in mist, after being contacted with high-temperature synthesis gas can flash to gaseous state, will not be entrained in liquid water, connect immediately completely
Refractory material is made to influence service life of equipment because quenching ruptures after contacting the refractory material of red heat.
Synthesis gas after cooling is when flowing through gas transmission section, since gas transmission section is designed as gradual undergauge structure, thus synthesis gas
Flow velocity can accelerate rapidly, can shorten the residence time, inhibit pyrolysis side reaction generation.
Coal dust sprays into coal hydrogenation pyrolysis reative cell 9 through coal nozzle 8 and synthesis gas quickly add by Geldart-D particle
Hydrogen pyrolytic reaction.Being synthesized the cooling agent of the penetrating of gas jets 10 after reaction immediately (can use the synthesis of water vapour or downstream return
Gas) cooling, cyclone separator 11 is sent to after cooling and carries out gas solid separation.
Band coal dust synthesis gas after being quenched is tangentially (see the C-C sectional views of Fig. 1) into cyclone separator 11, gas
Under the influence of centrifugal force, the coal dust more than 98% is thrown on cyclone separator wall the coal dust carried secretly in stream, falls into whirlwind point
Semicoke collection device from device bottom is sent out out-of-bounds as product；And the crude oil gas after dedusting then regards downstream and requires, and carries out follow-up
After purified treatment oil product is produced for downstream.
The spirit or essence that the present invention can be embodied in a variety of forms without departing from invention, it should therefore be appreciated that on
It states embodiment and is not limited to aforementioned details, and should widely be explained in claim limited range, therefore fall into right
It is required that or the variation in its equivalent scope and remodeling should be covered by the following claims.
Claims (3)
1. a kind of pulverized coal pyrolysis liquefaction preparing natural gas reactor, it is characterised in that：The pulverized coal pyrolysis liquefaction preparing natural gas is used
Reactor, including：Water-cooling wall vaporizer (1), coal hydrogenation pyrolysis reative cell (9), cyclone separator (11), the water-cooling wall gasification
The entrance of hydrogen feedstock oxygen and coal dust is equipped at the top of room (1), water-cooling wall (2), the water are set in the water-cooling wall vaporizer (1)
Cold wall (2) connects below through channel with slag bath (6), water-cooling wall vaporizer (1) inner wall be refractory brick (3), the water-cooling wall
Divider wall (12) is built into refractory brick in the middle part of vaporizer (1), pressure nitrogen endless tube (4) is equipped at the top of the divider wall, it is described
Water-bath ring (5) is equipped with above slag bath (6), connects undergauge appendix (7) in the middle part of the water-cooling wall vaporizer (1), the undergauge is defeated
Tracheae is connected with the coal hydrogenation pyrolysis reative cell (9), and coal nozzle (8) is equipped at the top of the coal hydrogenation pyrolysis reative cell (9),
Coal hydrogenation pyrolysis reative cell (9) lower side is equipped with coolant jet (10), coal hydrogenation pyrolysis reative cell (9) bottom
It is connected with the cyclone separator (11), cyclone separator (11) bottom connects semicoke collection device, the cyclonic separation
Connection crude oil gas subsequent purification processing system at the top of device (11).
2. pulverized coal pyrolysis liquefaction preparing natural gas reactor according to claim 1, it is characterised in that：It is described to press nitrogen
Endless tube (4) is equipped with hundreds of nitrogen injection holes.
3. pulverized coal pyrolysis liquefaction preparing natural gas reactor according to claim 1, it is characterised in that：The water-bath ring
(5) it is equipped with dozens of and tilts wide-angle atomizer.
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| CN201610260561.4A CN105713674B (en) | 2016-04-25 | 2016-04-25 | A kind of pulverized coal pyrolysis liquefaction preparing natural gas reactor |
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| CN105713674B true CN105713674B (en) | 2018-07-06 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106281398B (en) * | 2016-09-28 | 2018-10-12 | 中石化宁波工程有限公司 | A kind of coal heat decomposition stove and pyrolysis of coal method |
| CN106281399B (en) * | 2016-09-28 | 2018-11-30 | 中石化宁波工程有限公司 | A kind of pyrolysis of coal liquefaction device and method |
| CN106497606B (en) * | 2016-09-28 | 2019-05-17 | 中石化宁波工程有限公司 | Coal direct hydrogenation method for pyrolysis |
| CN110358585B (en) * | 2018-04-09 | 2021-06-22 | 成都聚实节能科技有限公司 | Method for preparing hydrogen-rich gas and water gas in grading manner |
| CN110358582B (en) * | 2019-01-15 | 2023-12-26 | 新能能源有限公司 | Pulverized coal hydro-gasification device |
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| JP2004217868A (en) * | 2003-01-17 | 2004-08-05 | Nippon Steel Corp | Coal thermal hydrocracking process |
| CN101235327A (en) * | 2006-04-12 | 2008-08-06 | 深圳市星原燃气轮机维修开发有限公司 | Class natural gas combination circulation |
| CN104593037A (en) * | 2014-12-19 | 2015-05-06 | 中美新能源技术研发（山西）有限公司 | Composite coal hydrogenation oil refining reactor and oil refining method |
| CN104877700A (en) * | 2015-06-08 | 2015-09-02 | 中美新能源技术研发（山西）有限公司 | Novel pulverized coal pyrolytic hydrogenation reactor and pyrolytic hydrogenation reaction method |
| CN105400548A (en) * | 2015-11-20 | 2016-03-16 | 新奥科技发展有限公司 | Coal hydrogasification method and system |
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- 2016-04-25 CN CN201610260561.4A patent/CN105713674B/en active Active
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| JP2004217868A (en) * | 2003-01-17 | 2004-08-05 | Nippon Steel Corp | Coal thermal hydrocracking process |
| CN101235327A (en) * | 2006-04-12 | 2008-08-06 | 深圳市星原燃气轮机维修开发有限公司 | Class natural gas combination circulation |
| CN104593037A (en) * | 2014-12-19 | 2015-05-06 | 中美新能源技术研发（山西）有限公司 | Composite coal hydrogenation oil refining reactor and oil refining method |
| CN104877700A (en) * | 2015-06-08 | 2015-09-02 | 中美新能源技术研发（山西）有限公司 | Novel pulverized coal pyrolytic hydrogenation reactor and pyrolytic hydrogenation reaction method |
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