FR2906879A1 - Installation for producing a mixture of nitrogen and carbon dioxide for injection into a subterranean hydrocarbon reservoir comprises an air separator, an oxygen consumption unit, a carbon dioxide separator and a mixer - Google Patents

Installation for producing a mixture of nitrogen and carbon dioxide for injection into a subterranean hydrocarbon reservoir comprises an air separator, an oxygen consumption unit, a carbon dioxide separator and a mixer Download PDF

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Publication number
FR2906879A1
FR2906879A1 FR0753083A FR0753083A FR2906879A1 FR 2906879 A1 FR2906879 A1 FR 2906879A1 FR 0753083 A FR0753083 A FR 0753083A FR 0753083 A FR0753083 A FR 0753083A FR 2906879 A1 FR2906879 A1 FR 2906879A1
Authority
FR
France
Prior art keywords
carbon dioxide
nitrogen
oxygen
unit
mixture
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.)
Withdrawn
Application number
FR0753083A
Other languages
French (fr)
Inventor
Alain Guillard
Jean Francois Ducholet
Francois Fuentes
Jean Marc Tsevery
Frederic Datchary
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.)
Air Liquide SA
LAir Liquide SA pour lEtude et lExploitation des Procedes Georges Claude
Original Assignee
Air Liquide SA
LAir Liquide SA pour lEtude et lExploitation des Procedes Georges Claude
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 Air Liquide SA, LAir Liquide SA pour lEtude et lExploitation des Procedes Georges Claude filed Critical Air Liquide SA
Priority to FR0753083A priority Critical patent/FR2906879A1/en
Publication of FR2906879A1 publication Critical patent/FR2906879A1/en
Application status is Withdrawn legal-status Critical

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25JLIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J3/00Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
    • F25J3/02Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
    • F25J3/04Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air
    • F25J3/04521Coupling of the air fractionation unit to an air gas-consuming unit, so-called integrated processes
    • F25J3/04527Integration with an oxygen consuming unit, e.g. glass facility, waste incineration or oxygen based processes in general
    • F25J3/04533Integration with an oxygen consuming unit, e.g. glass facility, waste incineration or oxygen based processes in general for the direct combustion of fuels in a power plant, so-called "oxyfuel combustion"
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25JLIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J3/00Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
    • F25J3/02Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
    • F25J3/04Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air
    • F25J3/04521Coupling of the air fractionation unit to an air gas-consuming unit, so-called integrated processes
    • F25J3/04563Integration with a nitrogen consuming unit, e.g. for purging, inerting, cooling or heating
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25JLIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J2260/00Coupling of processes or apparatus to other units; Integrated schemes
    • F25J2260/80Integration in an installation using carbon dioxide, e.g. for EOR, sequestration, refrigeration etc.

Abstract

Installation for producing a mixture of nitrogen and carbon dioxide for injection into a subterranean reservoir to facilitate hydrocarbon production comprises an air separation unit producing oxygen and nitrogen, an oxygen consumption unit, a carbon dioxide separation and/or purification unit and a device for mixing the nitrogen and carbon dioxide. An independent claim is also included for producing a mixture of nitrogen and carbon dioxide for injection into a subterranean reservoir to facilitate hydrocarbon production by separating air into oxygen and nitrogen, passing the oxygen to an oxygen consumption unit, separating and/or purifying carbon dioxide and mixing the nitrogen and carbon dioxide.

Description

The present invention relates to a production plant of a

  high pressure gas loaded with nitrogen and carbon dioxide. The need to treat in the more or less distant future the carbon dioxide at the output of the electric power generating units involves, in the case where an afterburner unit is used, an air separation unit and a separation unit. and purification of carbon dioxide. The latter, once separated and purified, can be used by being sent, after compression under very high pressure, via pipes to be sent into oil wells or fields of natural gas to facilitate the extraction of hydrocarbons ( EOR). Nitrogen under very high pressure is also used for this purpose. It is necessary for the oxyfuel combustion technology to be required over other technologies such as amine scrubbing as oxygen production and CO2 separation / purification and its compression has a minimum electrical consumption. The use of impure oxygen makes it possible to go in this direction. According to one object of the invention, there is provided a plant for producing a mixture of nitrogen and carbon dioxide comprising an air separation unit producing oxygen and nitrogen and a unit of 20 separation and / or purification of carbon dioxide downstream from an oxygen consuming unit using this oxygen, and means for mixing nitrogen and carbon dioxide and means for sending the mixture to an underground reservoir containing hydrocarbons to facilitate extraction. The plant may also include: a nitrogen compressor upstream of the means for mixing nitrogen and carbon dioxide; - A mixing compressor downstream of the means for mixing nitrogen and carbon dioxide. The oxygen consuming unit may be an oxycombustion unit.

According to another object of the invention, there is provided a method for producing a mixture of nitrogen and carbon dioxide in which air is separated in an air separation unit to produce air. oxygen and nitrogen and carbon dioxide is separated and / or purified in a separation unit 2906879 2 and / or purification of carbon dioxide, oxygen is sent from the air separation unit to an oxygen consuming unit is supplied with carbon dioxide containing fluid from the oxygen consuming unit to the carbon dioxide separation and / or purification unit, nitrogen and dioxide are mixed together; carbon and the mixture is sent to an underground reservoir containing hydrocarbons to facilitate extraction. According to other optional aspects: the oxygen has a purity lower than 97 mol%; the nitrogen is produced at a pressure of less than 6 bar; the nitrogen is produced at a pressure higher than 6 bar; the nitrogen is compressed before mixing with the carbon dioxide; the mixture of nitrogen and carbon dioxide is compressed. The invention will be described in more detail with reference to the figures which show the integrated air separation unit and carbon dioxide separation unit. In Figure 1, air 1 is sent to an air separation apparatus by cryogenic distillation 3. This produces oxygen at a purity of less than 97 mol%. The oxygen is sent at least in part to an oxygen consuming unit 7, such as an oxy-fuel combustion apparatus. The nitrogen is produced at low pressure (less than 6 bar) and is compressed in the compressor 17 to form a flow 19 at the same pressure as the flow of carbon dioxide 13. This unit 7 produces residual gases rich in dioxide carbon dioxide 9 is produced and mixed with the nitrogen 15. Then the mixture 21 is compressed at a very high pressure in a compressor 23 and sent to an underground reservoir 25 to facilitate hydrocarbon extraction.

In Figure 2, air 1 is supplied to an air separation apparatus by cryogenic distillation 3. This produces oxygen at a purity of less than 97 mol%. and nitrogen 15.

The oxygen is sent at least in part to an oxygen consuming unit 7, such as an oxyfuel combustion apparatus. The nitrogen is produced at a pressure higher than 6 bar, preferably substantially equal to the production pressure of the carbon dioxide flow 13.

This unit 7 produces carbon dioxide-rich residual gases 9 which are sent to a carbon dioxide separation unit 11. A carbon dioxide gas flow 13 is produced and mixed with the nitrogen 15. Then the mixture 21 is compressed at a very high pressure in a compressor 23 and sent to an underground reservoir 25 to facilitate the extraction of hydrocarbons. For both figures, the mixture 21 can have characteristics ranging from about one percent nitrogen in the carbon dioxide stream to up to a few percent carbon dioxide in a nitrogen stream. The quantities made available by the site to be used to facilitate the extraction of hydrocarbons can thus be practically doubled or even tripled.

Claims (10)

  1.   A plant for producing a mixture of nitrogen and carbon dioxide comprising an air separation unit (3) producing oxygen (5) and nitrogen (15) and a separation unit and / or purifying carbon dioxide (11) downstream from an oxygen consuming unit (7) using this oxygen, and means for mixing nitrogen and carbon dioxide (13) and means for sending the mixing (21) with an underground reservoir (25) containing hydrocarbons to facilitate extraction. i0
  2.   2. Installation according to claim 1 comprising a nitrogen compressor (17) upstream of the means for mixing nitrogen (15) and carbon dioxide (13). 15
  3.   3. Installation according to claim 2 comprising a compressor (23) mixing downstream means for mixing the nitrogen (15) and the carbon dioxide (13).
  4.   4. Installation in which the oxygen consuming unit (7) is an oxy-fuel unit.
  5.   A process for producing a mixture of nitrogen and carbon dioxide in which air is separated in an air separation unit (3) to produce oxygen (5) and nitrogen and (15) separating and / or purifying carbon dioxide in a carbon dioxide separation and / or purification unit (11), oxygen is sent from the air separation unit to a oxygen-consuming unit (7), fluid (9) containing carbon dioxide from the oxygen-consuming unit is sent to the carbon dioxide separation and / or purification unit, mixing of the nitrogen and carbon dioxide (13) and the mixture is sent to an underground tank (25) containing hydrocarbons to facilitate extraction. 2906879 5
  6.   The process of claim 5 wherein the oxygen (5) has a purity of less than 97 mol%.
  7.   7. The process of claim 5 or 6 wherein the nitrogen (15) is produced at a pressure of less than 6 bar.
  8.   The process of claim 5 or 6 wherein the nitrogen (15) is produced at a pressure above 6 bar.
  9.   9. The method of claim 6 or 7 wherein the nitrogen (15) is compressed before mixing with the carbon dioxide (13).
  10.   The method of claim 6, 7 or 8 wherein the mixture (21) of nitrogen (15) and carbon dioxide (13) is compressed.
FR0753083A 2007-02-06 2007-02-06 Installation for producing a mixture of nitrogen and carbon dioxide for injection into a subterranean hydrocarbon reservoir comprises an air separator, an oxygen consumption unit, a carbon dioxide separator and a mixer Withdrawn FR2906879A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR0753083A FR2906879A1 (en) 2007-02-06 2007-02-06 Installation for producing a mixture of nitrogen and carbon dioxide for injection into a subterranean hydrocarbon reservoir comprises an air separator, an oxygen consumption unit, a carbon dioxide separator and a mixer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0753083A FR2906879A1 (en) 2007-02-06 2007-02-06 Installation for producing a mixture of nitrogen and carbon dioxide for injection into a subterranean hydrocarbon reservoir comprises an air separator, an oxygen consumption unit, a carbon dioxide separator and a mixer

Publications (1)

Publication Number Publication Date
FR2906879A1 true FR2906879A1 (en) 2008-04-11

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FR0753083A Withdrawn FR2906879A1 (en) 2007-02-06 2007-02-06 Installation for producing a mixture of nitrogen and carbon dioxide for injection into a subterranean hydrocarbon reservoir comprises an air separator, an oxygen consumption unit, a carbon dioxide separator and a mixer

Country Status (1)

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Cited By (41)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2938635A1 (en) * 2008-11-18 2010-05-21 Air Liquide Oxygen and fluid i.e. water, producing method, involves sending compressed air to cryogenic distillation air separation apparatus, and sending water for assisted recovery of hydrocarbon e.g. petrol, after vaporization of water
WO2011084581A1 (en) * 2009-12-17 2011-07-14 Greatpoint Energy, Inc. Integrated enhanced oil recovery process injecting nitrogen
US8123827B2 (en) 2007-12-28 2012-02-28 Greatpoint Energy, Inc. Processes for making syngas-derived products
US8192716B2 (en) 2008-04-01 2012-06-05 Greatpoint Energy, Inc. Sour shift process for the removal of carbon monoxide from a gas stream
US8202913B2 (en) 2008-10-23 2012-06-19 Greatpoint Energy, Inc. Processes for gasification of a carbonaceous feedstock
US8268899B2 (en) 2009-05-13 2012-09-18 Greatpoint Energy, Inc. Processes for hydromethanation of a carbonaceous feedstock
US8286901B2 (en) 2008-02-29 2012-10-16 Greatpoint Energy, Inc. Coal compositions for catalytic gasification
US8297542B2 (en) 2008-02-29 2012-10-30 Greatpoint Energy, Inc. Coal compositions for catalytic gasification
US8328890B2 (en) 2008-09-19 2012-12-11 Greatpoint Energy, Inc. Processes for gasification of a carbonaceous feedstock
US8349039B2 (en) 2008-02-29 2013-01-08 Greatpoint Energy, Inc. Carbonaceous fines recycle
US8361428B2 (en) 2008-02-29 2013-01-29 Greatpoint Energy, Inc. Reduced carbon footprint steam generation processes
US8366795B2 (en) 2008-02-29 2013-02-05 Greatpoint Energy, Inc. Catalytic gasification particulate compositions
US8479833B2 (en) 2009-10-19 2013-07-09 Greatpoint Energy, Inc. Integrated enhanced oil recovery process
US8479834B2 (en) 2009-10-19 2013-07-09 Greatpoint Energy, Inc. Integrated enhanced oil recovery process
US8502007B2 (en) 2008-09-19 2013-08-06 Greatpoint Energy, Inc. Char methanation catalyst and its use in gasification processes
US8557878B2 (en) 2010-04-26 2013-10-15 Greatpoint Energy, Inc. Hydromethanation of a carbonaceous feedstock with vanadium recovery
US8647402B2 (en) 2008-09-19 2014-02-11 Greatpoint Energy, Inc. Processes for gasification of a carbonaceous feedstock
US8648121B2 (en) 2011-02-23 2014-02-11 Greatpoint Energy, Inc. Hydromethanation of a carbonaceous feedstock with nickel recovery
US8652696B2 (en) 2010-03-08 2014-02-18 Greatpoint Energy, Inc. Integrated hydromethanation fuel cell power generation
US8653149B2 (en) 2010-05-28 2014-02-18 Greatpoint Energy, Inc. Conversion of liquid heavy hydrocarbon feedstocks to gaseous products
US8652222B2 (en) 2008-02-29 2014-02-18 Greatpoint Energy, Inc. Biomass compositions for catalytic gasification
US8669013B2 (en) 2010-02-23 2014-03-11 Greatpoint Energy, Inc. Integrated hydromethanation fuel cell power generation
US8709113B2 (en) 2008-02-29 2014-04-29 Greatpoint Energy, Inc. Steam generation processes utilizing biomass feedstocks
US8728182B2 (en) 2009-05-13 2014-05-20 Greatpoint Energy, Inc. Processes for hydromethanation of a carbonaceous feedstock
US8728183B2 (en) 2009-05-13 2014-05-20 Greatpoint Energy, Inc. Processes for hydromethanation of a carbonaceous feedstock
US8734547B2 (en) 2008-12-30 2014-05-27 Greatpoint Energy, Inc. Processes for preparing a catalyzed carbonaceous particulate
US8733459B2 (en) 2009-12-17 2014-05-27 Greatpoint Energy, Inc. Integrated enhanced oil recovery process
US8734548B2 (en) 2008-12-30 2014-05-27 Greatpoint Energy, Inc. Processes for preparing a catalyzed coal particulate
US8748687B2 (en) 2010-08-18 2014-06-10 Greatpoint Energy, Inc. Hydromethanation of a carbonaceous feedstock
US8999020B2 (en) 2008-04-01 2015-04-07 Greatpoint Energy, Inc. Processes for the separation of methane from a gas stream
US9012524B2 (en) 2011-10-06 2015-04-21 Greatpoint Energy, Inc. Hydromethanation of a carbonaceous feedstock
US9034061B2 (en) 2012-10-01 2015-05-19 Greatpoint Energy, Inc. Agglomerated particulate low-rank coal feedstock and uses thereof
US9034058B2 (en) 2012-10-01 2015-05-19 Greatpoint Energy, Inc. Agglomerated particulate low-rank coal feedstock and uses thereof
US9127221B2 (en) 2011-06-03 2015-09-08 Greatpoint Energy, Inc. Hydromethanation of a carbonaceous feedstock
US9234149B2 (en) 2007-12-28 2016-01-12 Greatpoint Energy, Inc. Steam generating slurry gasifier for the catalytic gasification of a carbonaceous feedstock
US9273260B2 (en) 2012-10-01 2016-03-01 Greatpoint Energy, Inc. Agglomerated particulate low-rank coal feedstock and uses thereof
US9328920B2 (en) 2012-10-01 2016-05-03 Greatpoint Energy, Inc. Use of contaminated low-rank coal for combustion
US9353322B2 (en) 2010-11-01 2016-05-31 Greatpoint Energy, Inc. Hydromethanation of a carbonaceous feedstock
US10344231B1 (en) 2018-10-26 2019-07-09 Greatpoint Energy, Inc. Hydromethanation of a carbonaceous feedstock with improved carbon utilization
US10435637B1 (en) 2018-12-18 2019-10-08 Greatpoint Energy, Inc. Hydromethanation of a carbonaceous feedstock with improved carbon utilization and power generation
US10464872B1 (en) 2018-07-31 2019-11-05 Greatpoint Energy, Inc. Catalytic gasification to produce methanol

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US4434613A (en) * 1981-09-02 1984-03-06 General Electric Company Closed cycle gas turbine for gaseous production
GB2117053A (en) * 1982-02-18 1983-10-05 Boc Group Plc Gas turbines and engines
EP0162368A2 (en) * 1984-05-19 1985-11-27 LGA Gastechnik GmbH Injection gas-generating device, particularly for charging mineral oil from its underground reservoirs
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Cited By (41)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9234149B2 (en) 2007-12-28 2016-01-12 Greatpoint Energy, Inc. Steam generating slurry gasifier for the catalytic gasification of a carbonaceous feedstock
US8123827B2 (en) 2007-12-28 2012-02-28 Greatpoint Energy, Inc. Processes for making syngas-derived products
US8366795B2 (en) 2008-02-29 2013-02-05 Greatpoint Energy, Inc. Catalytic gasification particulate compositions
US8349039B2 (en) 2008-02-29 2013-01-08 Greatpoint Energy, Inc. Carbonaceous fines recycle
US8652222B2 (en) 2008-02-29 2014-02-18 Greatpoint Energy, Inc. Biomass compositions for catalytic gasification
US8361428B2 (en) 2008-02-29 2013-01-29 Greatpoint Energy, Inc. Reduced carbon footprint steam generation processes
US8286901B2 (en) 2008-02-29 2012-10-16 Greatpoint Energy, Inc. Coal compositions for catalytic gasification
US8297542B2 (en) 2008-02-29 2012-10-30 Greatpoint Energy, Inc. Coal compositions for catalytic gasification
US8709113B2 (en) 2008-02-29 2014-04-29 Greatpoint Energy, Inc. Steam generation processes utilizing biomass feedstocks
US8192716B2 (en) 2008-04-01 2012-06-05 Greatpoint Energy, Inc. Sour shift process for the removal of carbon monoxide from a gas stream
US8999020B2 (en) 2008-04-01 2015-04-07 Greatpoint Energy, Inc. Processes for the separation of methane from a gas stream
US8647402B2 (en) 2008-09-19 2014-02-11 Greatpoint Energy, Inc. Processes for gasification of a carbonaceous feedstock
US8502007B2 (en) 2008-09-19 2013-08-06 Greatpoint Energy, Inc. Char methanation catalyst and its use in gasification processes
US8328890B2 (en) 2008-09-19 2012-12-11 Greatpoint Energy, Inc. Processes for gasification of a carbonaceous feedstock
US8202913B2 (en) 2008-10-23 2012-06-19 Greatpoint Energy, Inc. Processes for gasification of a carbonaceous feedstock
FR2938635A1 (en) * 2008-11-18 2010-05-21 Air Liquide Oxygen and fluid i.e. water, producing method, involves sending compressed air to cryogenic distillation air separation apparatus, and sending water for assisted recovery of hydrocarbon e.g. petrol, after vaporization of water
US8734548B2 (en) 2008-12-30 2014-05-27 Greatpoint Energy, Inc. Processes for preparing a catalyzed coal particulate
US8734547B2 (en) 2008-12-30 2014-05-27 Greatpoint Energy, Inc. Processes for preparing a catalyzed carbonaceous particulate
US8728183B2 (en) 2009-05-13 2014-05-20 Greatpoint Energy, Inc. Processes for hydromethanation of a carbonaceous feedstock
US8268899B2 (en) 2009-05-13 2012-09-18 Greatpoint Energy, Inc. Processes for hydromethanation of a carbonaceous feedstock
US8728182B2 (en) 2009-05-13 2014-05-20 Greatpoint Energy, Inc. Processes for hydromethanation of a carbonaceous feedstock
US8479833B2 (en) 2009-10-19 2013-07-09 Greatpoint Energy, Inc. Integrated enhanced oil recovery process
US8479834B2 (en) 2009-10-19 2013-07-09 Greatpoint Energy, Inc. Integrated enhanced oil recovery process
US8733459B2 (en) 2009-12-17 2014-05-27 Greatpoint Energy, Inc. Integrated enhanced oil recovery process
WO2011084581A1 (en) * 2009-12-17 2011-07-14 Greatpoint Energy, Inc. Integrated enhanced oil recovery process injecting nitrogen
US8669013B2 (en) 2010-02-23 2014-03-11 Greatpoint Energy, Inc. Integrated hydromethanation fuel cell power generation
US8652696B2 (en) 2010-03-08 2014-02-18 Greatpoint Energy, Inc. Integrated hydromethanation fuel cell power generation
US8557878B2 (en) 2010-04-26 2013-10-15 Greatpoint Energy, Inc. Hydromethanation of a carbonaceous feedstock with vanadium recovery
US8653149B2 (en) 2010-05-28 2014-02-18 Greatpoint Energy, Inc. Conversion of liquid heavy hydrocarbon feedstocks to gaseous products
US8748687B2 (en) 2010-08-18 2014-06-10 Greatpoint Energy, Inc. Hydromethanation of a carbonaceous feedstock
US9353322B2 (en) 2010-11-01 2016-05-31 Greatpoint Energy, Inc. Hydromethanation of a carbonaceous feedstock
US8648121B2 (en) 2011-02-23 2014-02-11 Greatpoint Energy, Inc. Hydromethanation of a carbonaceous feedstock with nickel recovery
US9127221B2 (en) 2011-06-03 2015-09-08 Greatpoint Energy, Inc. Hydromethanation of a carbonaceous feedstock
US9012524B2 (en) 2011-10-06 2015-04-21 Greatpoint Energy, Inc. Hydromethanation of a carbonaceous feedstock
US9328920B2 (en) 2012-10-01 2016-05-03 Greatpoint Energy, Inc. Use of contaminated low-rank coal for combustion
US9034058B2 (en) 2012-10-01 2015-05-19 Greatpoint Energy, Inc. Agglomerated particulate low-rank coal feedstock and uses thereof
US9034061B2 (en) 2012-10-01 2015-05-19 Greatpoint Energy, Inc. Agglomerated particulate low-rank coal feedstock and uses thereof
US9273260B2 (en) 2012-10-01 2016-03-01 Greatpoint Energy, Inc. Agglomerated particulate low-rank coal feedstock and uses thereof
US10464872B1 (en) 2018-07-31 2019-11-05 Greatpoint Energy, Inc. Catalytic gasification to produce methanol
US10344231B1 (en) 2018-10-26 2019-07-09 Greatpoint Energy, Inc. Hydromethanation of a carbonaceous feedstock with improved carbon utilization
US10435637B1 (en) 2018-12-18 2019-10-08 Greatpoint Energy, Inc. Hydromethanation of a carbonaceous feedstock with improved carbon utilization and power generation

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