WO2006104425A2 - Procede de regulation de la composition du gaz par la gazeification souterraine des charbons - Google Patents

Procede de regulation de la composition du gaz par la gazeification souterraine des charbons Download PDF

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Publication number
WO2006104425A2
WO2006104425A2 PCT/RU2006/000147 RU2006000147W WO2006104425A2 WO 2006104425 A2 WO2006104425 A2 WO 2006104425A2 RU 2006000147 W RU2006000147 W RU 2006000147W WO 2006104425 A2 WO2006104425 A2 WO 2006104425A2
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WO
WIPO (PCT)
Prior art keywords
gas
composition
mixture
controlling
coal gasification
Prior art date
Application number
PCT/RU2006/000147
Other languages
English (en)
Russian (ru)
Other versions
WO2006104425A8 (fr
WO2006104425A3 (fr
Inventor
Aleksandr Miroslavovich Karasevich
Efim Vulfovich Kreynin
Original Assignee
Otkritoye Aktsionernoye Obshchestvo 'promgaz'
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 Otkritoye Aktsionernoye Obshchestvo 'promgaz' filed Critical Otkritoye Aktsionernoye Obshchestvo 'promgaz'
Publication of WO2006104425A2 publication Critical patent/WO2006104425A2/fr
Publication of WO2006104425A8 publication Critical patent/WO2006104425A8/fr
Publication of WO2006104425A3 publication Critical patent/WO2006104425A3/fr

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
    • E21B43/16—Enhanced recovery methods for obtaining hydrocarbons
    • E21B43/24—Enhanced recovery methods for obtaining hydrocarbons using heat, e.g. steam injection
    • E21B43/243—Combustion in situ
    • 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
    • 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
    • C10J3/723—Controlling or regulating the gasification process
    • 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
    • C10J2300/0969—Carbon dioxide
    • 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
    • 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
    • C10J2300/1603—Integration of gasification processes with another plant or parts within the plant with gas treatment
    • C10J2300/1618—Modification of synthesis gas composition, e.g. to meet some criteria

Definitions

  • the invention relates to underground gasification of coal seams by converting the coal mass at the site of its occurrence into combustible gas and using the latter in various power plants.
  • a combustible mixture is formed containing, among other things, combustible components CO, H 2 and CH 4 ; in the second stage, the temperature potential of the combustible mixture transported in the channel is used to restore carbon dioxide (CO 2 ) injected along the channel path and water vapor (H 2 O).
  • CO 2 carbon dioxide
  • H 2 O water vapor
  • the aim of the present invention is the creation of a universal and practicable method of regulating the gas composition of CCGT.
  • water vapor (H 2 O) is added to the nitrogen-oxygen mixture (N 2 + O 2 ) as an additive, and a combustible mixture with a ratio of CO and H 2 components from 1: 2 to 1: 5 is extracted from the gas outlet wells .
  • Water vapor (H 2 O) is produced by non-contact cooling of the recoverable combustible mixture of generator gas in gas wells.
  • carbon dioxide (CO 2 ) is added to the injected nitrogen-oxygen mixture (N 2 + O 2 ) as an additive, and a combustible mixture of generator gas in the ratio of components CO and H 2 from 2: 1 to 1 is extracted from gas wells: 2.
  • carbon dioxide (CO 2 ) is produced by extracting it from a combustible mixture of generator gas.
  • a comparative analysis of the claimed invention with the prototype shows that the claimed technical solution is characterized by an additive (addition) to the injected nitrogen-oxygen blast (N 2 + O 2 ) carbon dioxide (CO 2 ) and water vapor (H 2 O) and thereby controlling the CO ratio / H 2 in the recoverable combustible mixture of generator gas in a wide range from 2: 1 to 1: 5.
  • N 2 + O 2 nitrogen-oxygen blast
  • CO 2 carbon dioxide
  • H 2 O water vapor
  • the claimed proposal for an inventive step meets the criterion of "significant differences", because The method has universality and the ability to control the composition of the CCGT gas produced, depending on the scope of its use in ground-based power plants (boiler and furnace equipment, various organic symbioses based on CO + H 2 ).
  • the proposed method for regulating the gas composition of CCGT is implemented as follows.
  • Nitrogen-oxygen blast containing nitrogen (N 2 ) and oxygen (O 2 ) is injected into the underground gas generator.
  • the ratio of these components can be different - from air (21% O 2 and 79% N 2 ) to pure technical oxygen (95-98% O 2 and 2-5% N 2 ).
  • a combustible mixture of generator gas containing combustible components CO, H 2 and CH 4 , as well as ballast components CO 2, N 2 and water vapor H 2 O are recovered from gas wells.
  • the ratio of CO and H 2 components is subject to regulation of the CCGT gas composition.
  • the ratio of the components N 2 , O 2 , CO 2 and H 2 O in the composition of the injected mixture is changed, for which carbon dioxide (CO 2 ) or water is added to nitrogen-oxygen blast (air, industrial oxygen or air enriched with oxygen) steam (H 2 O).
  • CO 2 carbon dioxide
  • nitrogen-oxygen blast air, industrial oxygen or air enriched with oxygen
  • H 2 O nitrogen-oxygen blast
  • the additive of the latter components is aimed at changing the ratio of the CO / H 2 components in the composition of the extracted generator gas in a wide range from 2: 1 to 1: 5, depending on the scope of its further use.
  • water vapor H 2 O
  • nitrogen-oxygen blast in various combinations with blast.
  • water vapor is produced by contactless cooling of CCGT gas in gas wells from 600-700 0 C at the entrance to the well to 150-180 0 C at the head of the well. Recuperative cooling of CCGT gas allows increasing the energy efficiency of the CCGT process by 8-12%.
  • carbon dioxide is added to the injected nitrogen-oxygen mixture, thereby increasing the proportion of CO in the extracted combustible mixture to a CO / H 2 ratio of from 1: 2 to 2: 1.
  • the best option for autonomous production of carbon dioxide is to extract it from a mixture of generator gas by cooling it in an absorber at a pressure of about 6 MPa.
  • the claimed invention allows you to adjust the composition of the gas CCGT, increasing its energy and other consumer properties, it is useful to use the temperature potential in the gasification zone of the underground gas generator on the reaction of reduction of CO 2 and H 2 O to CO and H 2 .

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Chemistry (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Fluid Mechanics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Solid-Fuel Combustion (AREA)
  • Carbon And Carbon Compounds (AREA)
  • Industrial Gases (AREA)

Abstract

L'invention concerne la gazéification souterraine de filons de charbon par la transformation de la masse de charbon à l'endroit du gisement en gaz combustible, et par l'utilisation de ce gaz dans de différentes installations de production d'énergie. L'invention vise à créer un procédé universel et pratique de régulation de la composition du gaz obtenu par le procédé de gazéification souterraine de charbons. Selon l'invention, on ajoute au mélange azote - oxygène injecté (N2+O2) le dioxyde de carbone (CO2) et la vapeur d'eau (H2O), et on régule le rapport CO/H2 dans le mélange combustible extrait du gaz de génération, dans une vaste gamme entre 2:1 et 1:5. La possibilité de réguler la composition du gaz obtenu par le procédé de gazéification souterraine des charbons confirme la nouveauté de l'invention.
PCT/RU2006/000147 2005-03-30 2006-03-28 Procede de regulation de la composition du gaz par la gazeification souterraine des charbons WO2006104425A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
RU2005109007 2005-03-30
RU2005109007/03A RU2293845C2 (ru) 2005-03-30 2005-03-30 Способ регулирования состава газа подземной газификации углей

Publications (3)

Publication Number Publication Date
WO2006104425A2 true WO2006104425A2 (fr) 2006-10-05
WO2006104425A8 WO2006104425A8 (fr) 2007-02-08
WO2006104425A3 WO2006104425A3 (fr) 2007-03-15

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PCT/RU2006/000147 WO2006104425A2 (fr) 2005-03-30 2006-03-28 Procede de regulation de la composition du gaz par la gazeification souterraine des charbons

Country Status (2)

Country Link
RU (1) RU2293845C2 (fr)
WO (1) WO2006104425A2 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101988382A (zh) * 2010-08-31 2011-03-23 新奥科技发展有限公司 调节气化剂在井下的流动方向的可活动设备及方法
CN104251133A (zh) * 2013-06-26 2014-12-31 新奥气化采煤有限公司 一种可控注气点注气装置、注气工艺及气化方法
CN104632178A (zh) * 2014-12-17 2015-05-20 新奥气化采煤有限公司 后退式引火扩孔方法
US9963949B2 (en) 2012-06-28 2018-05-08 Carbon Energy Limited Sacrificial liner linkages for auto-shortening an injection pipe for underground coal gasification
US9976403B2 (en) 2012-06-28 2018-05-22 Carbon Energy Limited Method for shortening an injection pipe for underground coal gasification

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NZ614294A (en) * 2011-03-09 2014-05-30 Linc Energy Ltd Method and apparatus for treating a raw ucg product stream
RU2513947C2 (ru) * 2012-03-12 2014-04-20 Открытое Акционерное Общество "Газпром Промгаз" Способ утилизации диоксида углерода (со2)из газа подземной газификации угля (пгу)
US10557338B2 (en) 2013-09-18 2020-02-11 1234 10Th Street Llc Reducing the carbon emissions intensity of a fuel
CN105804717B (zh) * 2016-03-10 2018-12-04 新奥科技发展有限公司 地下气化的控制方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4010801A (en) * 1974-09-30 1977-03-08 R. C. Terry Method of and apparatus for in situ gasification of coal and the capture of resultant generated heat
SU941587A1 (ru) * 1980-12-26 1982-07-07 Ленинградский Ордена Ленина,Ордена Октябрьской Революции И Ордена Трудового Красного Знамени Горный Институт Им. Г.В.Плеханова Способ подземной газификации угл
SU1836876A3 (ru) * 1990-12-29 1994-12-30 Смешанное научно-техническое товарищество по разработке техники и технологии для подземной электроэнергетики Способ отработки угольных пластов и комплекс оборудования для его осуществления
RU2177544C2 (ru) * 2000-02-14 2001-12-27 Дальневосточный государственный технический университет Способ скважинной добычи угля

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4010801A (en) * 1974-09-30 1977-03-08 R. C. Terry Method of and apparatus for in situ gasification of coal and the capture of resultant generated heat
SU941587A1 (ru) * 1980-12-26 1982-07-07 Ленинградский Ордена Ленина,Ордена Октябрьской Революции И Ордена Трудового Красного Знамени Горный Институт Им. Г.В.Плеханова Способ подземной газификации угл
SU1836876A3 (ru) * 1990-12-29 1994-12-30 Смешанное научно-техническое товарищество по разработке техники и технологии для подземной электроэнергетики Способ отработки угольных пластов и комплекс оборудования для его осуществления
RU2177544C2 (ru) * 2000-02-14 2001-12-27 Дальневосточный государственный технический университет Способ скважинной добычи угля

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
KREININ E.V.: 'IRTS Gasprom' NETRADITIONNYE TERMICHESKIE TEKHNOLOGII DOBYCHI TRUDNOIZVLEKAEMIKH TOPLIV: UGOL, UGLEVODORODNOE SYRIO, M., OOO 2004, page 107 *

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101988382A (zh) * 2010-08-31 2011-03-23 新奥科技发展有限公司 调节气化剂在井下的流动方向的可活动设备及方法
US9963949B2 (en) 2012-06-28 2018-05-08 Carbon Energy Limited Sacrificial liner linkages for auto-shortening an injection pipe for underground coal gasification
US9976403B2 (en) 2012-06-28 2018-05-22 Carbon Energy Limited Method for shortening an injection pipe for underground coal gasification
CN104251133A (zh) * 2013-06-26 2014-12-31 新奥气化采煤有限公司 一种可控注气点注气装置、注气工艺及气化方法
CN104632178A (zh) * 2014-12-17 2015-05-20 新奥气化采煤有限公司 后退式引火扩孔方法

Also Published As

Publication number Publication date
RU2005109007A (ru) 2006-09-10
WO2006104425A8 (fr) 2007-02-08
RU2293845C2 (ru) 2007-02-20
WO2006104425A3 (fr) 2007-03-15

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