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Patents Grants
last 30 patents
Information
Patent Grant
Reclamation of gaseous substances from boiler flue gas for oil reco...
Patent number
8,506,680
Issue date
Aug 13, 2013
Liaohe Petroleum Exploration Bureau, CNPC
Fengshan Zhang
Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information
Patent Grant
Equipment for pressurized adsorption of gaseous carbon dioxide from...
Patent number
8,460,444
Issue date
Jun 11, 2013
Liaohe Petroleum Exploration Bureau, CNPC
Fengshan Zhang
Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information
Patent Grant
Reclaiming carbon dioxide from boiler flue gas
Patent number
7,964,025
Issue date
Jun 21, 2011
Liaohe Petroleum Exploration Bureau, CNPC
Fengshan Zhang
Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information
Patent Grant
Method for reclaim of carbon dioxide and nitrogen from boiler flue gas
Patent number
7,754,102
Issue date
Jul 13, 2010
CNPC Greatwall Drilling Engineering Company Ltd.
Fengshan Zhang
Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information
Patent Grant
Oil recovery by injection of steam, carbon dioxide and nitrogen
Patent number
7,644,756
Issue date
Jan 12, 2010
CNPC Greatwall Drilling Engineering Company Limited
Fengshan Zhang
Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Patents Applications
last 30 patents
Information
Patent Application
Method for reclaim of carbon dioxide and nitrogen from boiler flue gas
Publication number
20090101868
Publication date
Apr 23, 2009
Fengshan Zhang
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Application
RECLAMATION OF GASEOUS SUBSTANCES FROM BOILER FLUE GAS FOR OIL RECO...
Publication number
20080236114
Publication date
Oct 2, 2008
Fengshan Zhang
F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES
Information
Patent Application
OIL RECOVERY BY INJECTION OF STEAM, CARBON DIOXIDE AND NITROGEN
Publication number
20080236812
Publication date
Oct 2, 2008
Fengshan Zhang
E21 - EARTH DRILLING MINING
Information
Patent Application
EQUIPMENT FOR PRESSURIZED ADSORPTION AND LIQUIFICATION OF CARBON DI...
Publication number
20080236117
Publication date
Oct 2, 2008
Liaohe Petroleum Exploration Bureau, CNPC
Fengshan ZHANG
F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES
Information
Patent Application
EQUIPMENT FOR PRESSURIZED ADSORPTION OF GASEOUS CARBON DIOXIDE FROM...
Publication number
20080236811
Publication date
Oct 2, 2008
Liaohe Petroleum Exploration Bureau, CNPC
Fengshan Zhang
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Application
RECLAIMING CARBON DIOXIDE FROM BOILER FLUE GAS
Publication number
20080236398
Publication date
Oct 2, 2008
Fengshan Zhang
F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES