GB2106130A - Gasification - Google Patents
Gasification Download PDFInfo
- Publication number
- GB2106130A GB2106130A GB08225133A GB8225133A GB2106130A GB 2106130 A GB2106130 A GB 2106130A GB 08225133 A GB08225133 A GB 08225133A GB 8225133 A GB8225133 A GB 8225133A GB 2106130 A GB2106130 A GB 2106130A
- Authority
- GB
- United Kingdom
- Prior art keywords
- reactor
- gas
- feedstock
- cyclonic
- product gas
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- 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
- C10J3/485—Entrained flow gasifiers
- C10J3/487—Swirling or cyclonic gasifiers
-
- 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
- C10J3/54—Gasification of granular or pulverulent fuels by the Winkler technique, i.e. by fluidisation
- C10J3/56—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
- C10J3/78—High-pressure apparatus
-
- 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
- C10J2300/0916—Biomass
-
- 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
- C10J2300/09—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
-
- 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
- C10J2300/18—Details of the gasification process, e.g. loops, autothermal operation
- C10J2300/1861—Heat exchange between at least two process streams
- C10J2300/1884—Heat exchange between at least two process streams with one stream being synthesis 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
- C10J2300/18—Details of the gasification process, e.g. loops, autothermal operation
- C10J2300/1861—Heat exchange between at least two process streams
- C10J2300/1892—Heat exchange between at least two process streams with one stream being water/steam
-
- 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
-
- 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
- Y02P20/141—Feedstock
- Y02P20/145—Feedstock the feedstock being materials of biological origin
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Processing Of Solid Wastes (AREA)
- Treatment Of Sludge (AREA)
Abstract
This invention relates to a gasification process in which a particulate feedstock is fed to a cyclonic reactor (10) in a stream of reaction gas through an inlet (8). The reactor (10) allows the mixture to fully react while reducing the entrainment of particles to the product gas discharged through pipe (14) upwardly substantially along the cyclonic axis of the reactor (10). The product gas is further filtered in an ash cylone (16), and the heat utilized in a waste heat boiler (26). The solid end liquid residues from the reaction are collected and discharged at the base of the reactor (10). <IMAGE>
Description
SPECIFICATION
Gasification process
The invention relates to a gasification process and apparatus suitable particularly for coal or biomass. Such processes can produce a raw product gas suitable for conversion to, for example, Methanol.
The present invention utilises a cyclonic reactor in which a synthesis gas is produced.
We have found that the cyclone design ensures sufficient residence time to ensure good reaction and minimise carry over of particles in the gas discharged. A process according to the invention comprises passing a particulate feedstock and reaction gas to a cyclonic reactor; retaining the mixture of feedstock and reaction gas in the reactor while the feedstock and gas react to produce a raw product gas, and to separate entrained material therefrom; withdrawing the raw product gas; and collecting the discharging solid and liquid residues.
The gas produced may be discharged via a cyclone filter, from which ash may be recycled to the gasifier. Slag produced in the reactor can be removed from the base via a water quench and lock hopper.
Gasification apparatus according to the invention comprises a cyclonic reactor; means for delivering thereto a particulate feedstock and reaction gas; a collection and discharge device for solid and liquid products of the reaction in the reactor; and a conduit for withdrawing product gas from the reactor.
The reactor is normally oriented with its cyclonic axis vertical, and the feedstock and reaction gas delivered at an inlet to an upper part of and reaction gas delivered at an inlet to an upper part of reactor. The swirling mixture is forced downwards by the inlet and reaction pressure, and product gas discharged upwardly through a conduit substantially on the cyclonic axis of the reactor.
The reaction gas normally comprises at least one of steam and oxygen.
In preferred embodiments of the invention the particulate feedstock is mixed with reaction gas; e.g. a mixture of steam and oxygen just prior to entering the reactor. The particulate feedstock is carried to the reactor by being entrained in a stream of gas and the reaction gas, normally steam, may also be used as the transport medium for the feed stock as may recycled product gas. The gasification in the reactor will produce the gas at a high temperature and this heat may be utilised in a waste heat boiler in the discharge line.
The invention will now be described by way of example and with reference to the accompanying schematic drawing which iliustrates a preferred gasification process according thereto, and in which the hollow arrowheads indicate the flow path of gases, ana the solid arrowheads the flow path of solid (or liquid) matter.
In the process illustrated, finely divided feedstock material is delivered via a reception hopper 2 to an inlet transport line 4 to which steam and/or recycled product gas is fed at 6 to provide the transport medium. Further steam and oxygen are added at the inlet 8 to an entrained cyclonic reactor 10 via line 1 2.
In the cyclonic reactor 10 the entrained particulate feedstock will undergo an explosive pyrolysis/gasification, raw product or synthesis gas being discharged through pipe 14.
The reactor design can ensure sufficient residence time to minimize entrainment of particles in the discharged product gas, but any such entrained particles may be separated in a cyclone filter 1 6 and recycled to the reactor 10 as shown. This enhances efficiency by higher carbon utilisation. The heat generated in the reactor should be sufficient to cause slagging of inorganic particles which form a bath 1 8 at the base of the reactor 10 and are discharged via a water quench 20 and a lock hopper 22. Recycled product gas can be injected into the discharge pipe 14 at 24 to quench the generated gas.
The gas discharged through pipe 14 will be at an elevated temperature, and the available heat is utilised in a waste heat boiler 26 downstream of the cyclone filter 16. A typical operational temperature is around 2000"C (depending on the feedstock used) and thus, steam may also be generated in the shell 28 of the reactor. Water is delivered at 30 and circulated around the reactor before being discharged as steam at 32. The steam produced may be used as the transport medium or for the additionai steam supply (see above).
Any suitable water circulation system may be employed in the reactor shell compatible with the system pressures contemplated (up to 30 bars) and temperatures.
The use of an entrained cyclonic reactor 10 affords the principal advantage of providing a single route for the particulate feedstock which may be selected to give a high residence time under powerful gasifying conditions, without a long tubular arrangement being necessary as was the case with known gasification systems. Further, the cyclonic arrangement permits a certain variety of particle sizes, larger particles being retained in the reactor as a function of inertial forces. However, particle size will be critical to the performance of the system and 1 to 3 mm particles are preferred. The system is through adaptable to a wide variety of feedstocks and the operating parameters will of course vary according thereto.
1. A gasification process comprising passing a particulate feedstock and reaction gas to a cyclonic reactor; retaining the mixture of
**WARNING** end of DESC field may overlap start of CLMS **.
Claims (9)
1. A gasification process comprising passing a particulate feedstock and reaction gas to a cyclonic reactor; retaining the mixture of feedstock and reaction gas in the reactor while the feedstock and gas react to produce a raw product gas, and to separate entrained material therefrom; withdrawing the raw product gas; and collecting and discharging solid and liquid residues.
2. A process according to Claim 1 wherein the reactor is arranged with its cyclonic axis substantially vertical; and wherein the mixture of feedstock and reaction gas is delivered to an upper part of the reactor, and the product gas withdrawn from a lower part thereof.
3. A process according to Claim 2 wherein the product gas is withdrawn upwardly through a pipe substantially on the cyclonic axis of the reactor.
4. A process according to any preceding claim wherein the particulate feedstock is carried to the reactor by being entrained in a stream of gas.
5. A process according to Claim 4 wherein said stream of gas comprises at least one of reaction gas and raw product gas.
6. A process according to Claim 4 or
Claim 5 wherein reaction gas is fed to the stream of gas and entrained feedstock just prior to entry into the reactor.
7. A process according to any preceding claim wherein the reaction gas comprises at least one of steam and oxygen.
8. A process according to any preceding claim wherein the product gas is discharged through a cyclone filter, the residue therefrom being returned to the reactor.
9. A process according to any preceding claim wherein the product gas is discharged through a waste duct boiler.
1 0. A gasification process substantially as described herein with reference to the accompanying drawing.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB08225133A GB2106130B (en) | 1981-09-04 | 1982-09-03 | Gasification |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB8126894 | 1981-09-04 | ||
GB08225133A GB2106130B (en) | 1981-09-04 | 1982-09-03 | Gasification |
Publications (2)
Publication Number | Publication Date |
---|---|
GB2106130A true GB2106130A (en) | 1983-04-07 |
GB2106130B GB2106130B (en) | 1985-11-27 |
Family
ID=26280642
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB08225133A Expired GB2106130B (en) | 1981-09-04 | 1982-09-03 | Gasification |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB2106130B (en) |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2140025A (en) * | 1983-03-09 | 1984-11-21 | Willy Evrard | Gas producer |
FR2567535A1 (en) * | 1984-07-12 | 1986-01-17 | Tijoux Pierre | Device for the gasification of solid, concrete, pasty or plastic products or wastes |
GB2180464A (en) * | 1985-09-18 | 1987-04-01 | British Gas Corp | Gas-solid phase reactions and apparatus therefor |
GB2180465A (en) * | 1985-09-18 | 1987-04-01 | British Gas Corp | Gas solid phase reactions & apparatus therefor |
US4806131A (en) * | 1986-04-09 | 1989-02-21 | Hitachi, Ltd. | Gasification process for coal gasification furnace and apparatus therefor |
EP0423401A1 (en) * | 1985-11-29 | 1991-04-24 | The Dow Chemical Company | Two-stage coal gasification process |
EP0523447A1 (en) * | 1991-07-17 | 1993-01-20 | Oschatz Gmbh | Process and use of a reactor for gasifying wastes |
EP0687862A1 (en) * | 1994-06-15 | 1995-12-20 | FINMECCANICA S.p.A. AZIENDA ANSALDO | Method for the disposal of solid municipal waste by gasification and slagging and an apparatus for performing this method |
CN110272763A (en) * | 2019-07-23 | 2019-09-24 | 上海万禾新能源开发有限公司 | Cyclone biomass gasifying furnace |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105713678A (en) * | 2016-03-11 | 2016-06-29 | 郭宾 | Multifunctional gasifier and combined cycle energy system |
-
1982
- 1982-09-03 GB GB08225133A patent/GB2106130B/en not_active Expired
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2140025A (en) * | 1983-03-09 | 1984-11-21 | Willy Evrard | Gas producer |
FR2567535A1 (en) * | 1984-07-12 | 1986-01-17 | Tijoux Pierre | Device for the gasification of solid, concrete, pasty or plastic products or wastes |
GB2180464A (en) * | 1985-09-18 | 1987-04-01 | British Gas Corp | Gas-solid phase reactions and apparatus therefor |
EP0216569A2 (en) * | 1985-09-18 | 1987-04-01 | British Gas plc | Gas solid phase reactions and apparatus therefor |
GB2180465A (en) * | 1985-09-18 | 1987-04-01 | British Gas Corp | Gas solid phase reactions & apparatus therefor |
EP0216569A3 (en) * | 1985-09-18 | 1988-06-08 | British Gas plc | Gas solid phase reactions and apparatus therefor |
EP0423401A1 (en) * | 1985-11-29 | 1991-04-24 | The Dow Chemical Company | Two-stage coal gasification process |
US4806131A (en) * | 1986-04-09 | 1989-02-21 | Hitachi, Ltd. | Gasification process for coal gasification furnace and apparatus therefor |
EP0523447A1 (en) * | 1991-07-17 | 1993-01-20 | Oschatz Gmbh | Process and use of a reactor for gasifying wastes |
EP0687862A1 (en) * | 1994-06-15 | 1995-12-20 | FINMECCANICA S.p.A. AZIENDA ANSALDO | Method for the disposal of solid municipal waste by gasification and slagging and an apparatus for performing this method |
CN110272763A (en) * | 2019-07-23 | 2019-09-24 | 上海万禾新能源开发有限公司 | Cyclone biomass gasifying furnace |
Also Published As
Publication number | Publication date |
---|---|
GB2106130B (en) | 1985-11-27 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PCNP | Patent ceased through non-payment of renewal fee |