GB1395953A - Fluid coking with recycle of coke from gasifier to coker - Google Patents

Fluid coking with recycle of coke from gasifier to coker

Info

Publication number
GB1395953A
GB1395953A GB3372772A GB3372772A GB1395953A GB 1395953 A GB1395953 A GB 1395953A GB 3372772 A GB3372772 A GB 3372772A GB 3372772 A GB3372772 A GB 3372772A GB 1395953 A GB1395953 A GB 1395953A
Authority
GB
United Kingdom
Prior art keywords
coke
gasifier
reactor
line
heater
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.)
Expired
Application number
GB3372772A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ExxonMobil Technology and Engineering Co
Original Assignee
Exxon Research and Engineering Co
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Exxon Research and Engineering Co filed Critical Exxon Research and Engineering Co
Priority to GB3372772A priority Critical patent/GB1395953A/en
Priority to DE2235840A priority patent/DE2235840C2/en
Publication of GB1395953A publication Critical patent/GB1395953A/en
Priority to MY7600111A priority patent/MY7600111A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • C10B49/16—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 moving solid heat-carriers in divided form
    • C10B49/20—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 moving solid heat-carriers in divided form in dispersed form
    • C10B49/22—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 moving solid heat-carriers in divided form in dispersed form according to the "fluidised bed" technique
    • 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
    • C10B55/00—Coking mineral oils, bitumen, tar, and the like or mixtures thereof with solid carbonaceous material
    • C10B55/02—Coking mineral oils, bitumen, tar, and the like or mixtures thereof with solid carbonaceous material with solid materials
    • C10B55/04—Coking mineral oils, bitumen, tar, and the like or mixtures thereof with solid carbonaceous material with solid materials with moving solid materials
    • C10B55/08—Coking mineral oils, bitumen, tar, and the like or mixtures thereof with solid carbonaceous material with solid materials with moving solid materials in dispersed form
    • C10B55/10—Coking mineral oils, bitumen, tar, and the like or mixtures thereof with solid carbonaceous material with solid materials with moving solid materials in dispersed form according to the "fluidised bed" technique
    • 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
    • C10J3/482—Gasifiers with stationary fluidised bed
    • 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
    • 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
    • C10J3/721—Multistage gasification, e.g. plural parallel or serial gasification stages
    • 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
    • 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
    • C10J2300/093—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
    • C10J2300/0913—Carbonaceous raw material
    • C10J2300/0946—Waste, e.g. MSW, tires, glass, tar sand, peat, paper, lignite, oil shale
    • 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
    • C10J2300/0956—Air or oxygen enriched air
    • 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
    • C10J2300/1807—Recycle loops, e.g. gas, solids, heating medium, water

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Chemistry (AREA)
  • Combustion & Propulsion (AREA)
  • Dispersion Chemistry (AREA)
  • Materials Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
  • Coke Industry (AREA)

Abstract

1395953 Making coke and fuel gas EXXON RESEARCH & ENG CO 19 July 1972 33727/72 Heading C5E A process for making coke and a gas mixture containing H 2 and CO comprises treating a carbonaceous material, e.g. oil crudes, atmospheric and vacuum bottoms, pitch, asphalt, and bitumen from coal, tar sands and shale, in a fluidized bed reactor 1 at a temperature in the range 900‹ to 1200‹ F. to form coke, passing at least some of the coke to a fluidized bed heater 12 operated at, for example, from 100‹ to 300‹ F. higher than the reactor 1, and passing, at least some of the heated coke by line 25 to a gasifier 27, which is a fluidized bed operated at a temperature higher than the heater 12, and fed with an O 2 -containing gas 29 and steam 28, both optionally preheated. The H 2 , CO produced in 27 is led to the heater 12 to heat the coke there, before leaving at 34, and extra heat may be obtained by circulating coke in line 33. Hot coke is either delivered through a line 10 to the reactor 1, or, in a modification, see Fig. 2 (not shown) is sent directly to the reactor 1 from the gasifier through the link 33, the line 10 being omitted. Operating pressures in the reactor 1 and gasifier 27 are respectively 10 to 150 p.s.i.g., and not more than 150 p.s.i.g., and the temperature in the gasifier ranges from 1400‹ to 2800‹ F. The fluidized beds consist of coke particles, and alundum or mullite may be used as seed particles.
GB3372772A 1972-07-19 1972-07-19 Fluid coking with recycle of coke from gasifier to coker Expired GB1395953A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB3372772A GB1395953A (en) 1972-07-19 1972-07-19 Fluid coking with recycle of coke from gasifier to coker
DE2235840A DE2235840C2 (en) 1972-07-19 1972-07-21 Integrated fluidized bed coking and gasification process
MY7600111A MY7600111A (en) 1972-07-19 1976-12-31 Fluid coking with recycle of coke from gasifier to coker

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB3372772A GB1395953A (en) 1972-07-19 1972-07-19 Fluid coking with recycle of coke from gasifier to coker
DE2235840A DE2235840C2 (en) 1972-07-19 1972-07-21 Integrated fluidized bed coking and gasification process

Publications (1)

Publication Number Publication Date
GB1395953A true GB1395953A (en) 1975-05-29

Family

ID=25763599

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3372772A Expired GB1395953A (en) 1972-07-19 1972-07-19 Fluid coking with recycle of coke from gasifier to coker

Country Status (2)

Country Link
DE (1) DE2235840C2 (en)
GB (1) GB1395953A (en)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0024792A2 (en) * 1979-09-04 1981-03-11 Tosco Corporation A method for producing a methane-lean synthesis gas from petroleum coke
FR2505865A1 (en) * 1981-05-18 1982-11-19 Exxon Research Engineering Co Integrated fluid coking-gasification process - with cracking catalyst added to coker charge stock
EP0577280A1 (en) * 1992-06-18 1994-01-05 Exxon Research And Engineering Company Process for the dehydrogenation of hydrocarbons using a carbonaceous catalyst
EP2773723A4 (en) * 2011-11-04 2015-08-05 Thermochem Recovery Int Inc System and method for flexible conversion of feedstock to oil and gas
US9499404B2 (en) 2011-09-27 2016-11-22 Thermochem Recovery International, Inc. System and method for syngas clean-up
US9920267B2 (en) 2010-11-05 2018-03-20 Thermochem Recovery International, Inc. Solids circulation system and method for capture and conversion of reactive solids with fluidized bed temperature control
US10099200B1 (en) 2017-10-24 2018-10-16 Thermochem Recovery International, Inc. Liquid fuel production system having parallel product gas generation
US10215401B2 (en) 2017-07-10 2019-02-26 Thermochem Recovery International, Inc. Pulse combustion heat exchanger system and method
US10222060B2 (en) 2016-02-16 2019-03-05 Thermochem Recovery International, Inc. Two-stage energy-integrated product gas generation system and method
US10287519B2 (en) 2016-03-25 2019-05-14 Thermochem Recovery International, Inc. Three-stage energy-integrated product gas generation system
CN113604240A (en) * 2021-08-16 2021-11-05 谢崇亮 Heavy oil continuous coking system and process thereof
US11370982B2 (en) 2016-08-30 2022-06-28 Thermochem Recovery International, Inc. Method of producing liquid fuel from carbonaceous feedstock through gasification and recycling of downstream products
US11466223B2 (en) 2020-09-04 2022-10-11 Thermochem Recovery International, Inc. Two-stage syngas production with separate char and product gas inputs into the second stage
US11555157B2 (en) 2020-03-10 2023-01-17 Thermochem Recovery International, Inc. System and method for liquid fuel production from carbonaceous materials using recycled conditioned syngas

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ZA766925B (en) 1976-03-26 1977-10-26 Chevron Res Countercurrent plug-like flow of two solids
DE3100117C2 (en) * 1981-01-05 1983-09-29 Tosco Corp., 90067 Los Angeles, Calif. "Method and device for producing shale oil"
DE3217422A1 (en) * 1982-05-08 1983-11-10 Fritz Werner Industrie-Ausrüstungen GmbH, 6222 Geisenheim Process and equipment for processing comminuted coal by gasification by means of a multi-chamber reactor

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1072587B (en) * 1960-01-07
GB764203A (en) * 1954-01-06 1956-12-19 Exxon Research Engineering Co Improved coking processes
DE1111146B (en) * 1954-03-22 1961-07-20 Exxon Research Engineering Co Process for the heat treatment of fluidized bed petroleum coke for the production of electrodes
US2858253A (en) * 1954-12-01 1958-10-28 Texas Co Fluid contact coking of hydrocarbon oils, fines recirculation improvement
DE1109666B (en) * 1955-11-29 1961-06-29 Exxon Research Engineering Co Process for the conversion of heavy hydrocarbon oils into coke, low molecular weight, gaseous, unsaturated hydrocarbons and low boiling, normally liquid hydrocarbons
US3671424A (en) * 1969-10-20 1972-06-20 Exxon Research Engineering Co Two-stage fluid coking
US3661543A (en) * 1969-11-26 1972-05-09 Exxon Research Engineering Co Fluid coking process incorporating gasification of product ore

Cited By (37)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0024792A3 (en) * 1979-09-04 1981-07-15 Tosco Corporation A method for producing a methane-lean synthesis gas from petroleum coke
EP0024792A2 (en) * 1979-09-04 1981-03-11 Tosco Corporation A method for producing a methane-lean synthesis gas from petroleum coke
FR2505865A1 (en) * 1981-05-18 1982-11-19 Exxon Research Engineering Co Integrated fluid coking-gasification process - with cracking catalyst added to coker charge stock
EP0577280A1 (en) * 1992-06-18 1994-01-05 Exxon Research And Engineering Company Process for the dehydrogenation of hydrocarbons using a carbonaceous catalyst
US9920267B2 (en) 2010-11-05 2018-03-20 Thermochem Recovery International, Inc. Solids circulation system and method for capture and conversion of reactive solids with fluidized bed temperature control
US10815440B2 (en) 2010-11-05 2020-10-27 Thermochem Recovery International, Inc. Systems and methods for producing syngas from a solid carbon-containing substance using a reactor having hollow engineered particles
US9920268B2 (en) 2010-11-05 2018-03-20 Thermochem Recovery International, Inc. Solids circulation system and method for capture and conversion of reactive solids having fluidized bed containing hollow engineered particles
US10280081B2 (en) 2011-09-27 2019-05-07 Thermochem Recovery International, Inc. Unconditioned syngas composition and method of cleaning up same for fischer-tropsch processing
US9499404B2 (en) 2011-09-27 2016-11-22 Thermochem Recovery International, Inc. System and method for syngas clean-up
US9783417B2 (en) 2011-09-27 2017-10-10 Thermochem Recovery International, Inc. System for syngas clean-up
US9580315B2 (en) 2011-09-27 2017-02-28 Thermochem Recovery International, Inc. Method for syngas clean-up of semi-volatile organic compounds
US10011483B2 (en) 2011-09-27 2018-07-03 Thermochem Recovery International, Inc. Method for syngas clean-up of semi-volatile organic compounds with carbonyl sulfide removal
US10011482B2 (en) 2011-09-27 2018-07-03 Thermochem Recovery International, Inc. Method for syngas clean-up of semi-volatile organic compounds with metal removal
US10065858B2 (en) 2011-09-27 2018-09-04 Thermochem Recovery International, Inc. Method for syngas clean-up of semi-volatile organic compounds with solids removal
US12077435B2 (en) 2011-09-27 2024-09-03 Thermochem Recovery International, Inc. Method of generating clean syngas
US11760631B2 (en) 2011-09-27 2023-09-19 Thermochem Recovery International, Inc. Method of producing a cooled syngas of improved quality
US10214418B2 (en) 2011-09-27 2019-02-26 Thermochem Recovery International, Inc. Method for converting biomass into fischer-tropsch products with carbon dioxide recycling
US11186483B2 (en) 2011-09-27 2021-11-30 Thermochem Recovery International, Inc. Method of producing sulfur-depleted syngas
US9845240B2 (en) 2011-09-27 2017-12-19 Thermochem Recovery International, Inc. System for syngas clean-up of semi-volatile organic compounds
US10800655B2 (en) 2011-09-27 2020-10-13 Thermochem Recovery International, Inc. Conditioned syngas composition, method of making same and method of processing same to produce fuels and/or fischer-tropsch products
US11479727B2 (en) 2011-11-04 2022-10-25 Thermochem Recovery International, Inc. System and method for flexible conversion of feedstock to oil and gas
EP2773723A4 (en) * 2011-11-04 2015-08-05 Thermochem Recovery Int Inc System and method for flexible conversion of feedstock to oil and gas
US11242988B2 (en) 2016-02-16 2022-02-08 Thermochem Recovery International, Inc. Two-stage energy-integrated product gas generation system and method
US10222060B2 (en) 2016-02-16 2019-03-05 Thermochem Recovery International, Inc. Two-stage energy-integrated product gas generation system and method
US10286431B1 (en) 2016-03-25 2019-05-14 Thermochem Recovery International, Inc. Three-stage energy-integrated product gas generation method
US10766059B2 (en) 2016-03-25 2020-09-08 Thermochem Recovery International, Inc. System and method for recovering inert feedstock contaminants from municipal solid waste during gasification
US10287519B2 (en) 2016-03-25 2019-05-14 Thermochem Recovery International, Inc. Three-stage energy-integrated product gas generation system
US10946423B2 (en) 2016-03-25 2021-03-16 Thermochem Recovery International, Inc. Particulate classification vessel having gas distributor valve for recovering contaminants from bed material
US11370982B2 (en) 2016-08-30 2022-06-28 Thermochem Recovery International, Inc. Method of producing liquid fuel from carbonaceous feedstock through gasification and recycling of downstream products
US11634650B2 (en) 2016-08-30 2023-04-25 Thermochem Recovery International, Inc. Method of producing liquid fuel from carbonaceous feedstock through gasification and recycling of downstream products
US10215401B2 (en) 2017-07-10 2019-02-26 Thermochem Recovery International, Inc. Pulse combustion heat exchanger system and method
US10350574B2 (en) 2017-10-24 2019-07-16 Thermochem Recovery International, Inc. Method for producing a product gas having component gas ratio relationships
US10099200B1 (en) 2017-10-24 2018-10-16 Thermochem Recovery International, Inc. Liquid fuel production system having parallel product gas generation
US11555157B2 (en) 2020-03-10 2023-01-17 Thermochem Recovery International, Inc. System and method for liquid fuel production from carbonaceous materials using recycled conditioned syngas
US11466223B2 (en) 2020-09-04 2022-10-11 Thermochem Recovery International, Inc. Two-stage syngas production with separate char and product gas inputs into the second stage
US11760949B2 (en) 2020-09-04 2023-09-19 Thermochem Recovery International, Inc. Two-stage syngas production with separate char and product gas inputs into the second stage
CN113604240A (en) * 2021-08-16 2021-11-05 谢崇亮 Heavy oil continuous coking system and process thereof

Also Published As

Publication number Publication date
DE2235840C2 (en) 1983-03-24
DE2235840A1 (en) 1974-01-31

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
746 Register noted 'licences of right' (sect. 46/1977)
PE20 Patent expired after termination of 20 years