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Substitute natural gas

About: Substitute natural gas is a research topic. Over the lifetime, 1216 publications have been published within this topic receiving 23604 citations. The topic is also known as: synthetic natural gas.


Papers
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Journal ArticleDOI
TL;DR: In this paper, the authors provide a critical review of renewable and non-renewable synthetic natural gas production processes, technologies, and catalysts used to enhance the methanation processes.

16 citations

Journal ArticleDOI
17 Dec 2016-Energies
TL;DR: In this article, the authors examined the challenges of reducing fossil fuel dependency while maintaining profitability in district heating and cooling systems, and proposed a solution to reduce the dependency on fossil fuels.
Abstract: Nowadays conventional district heating and cooling (DHC) systems face the challenge of reducing fossil fuel dependency while maintaining profitability. To address these issues, this study examines ...

15 citations

Patent
23 Apr 1969
TL;DR: A process for the production of a gas containing a high proportion of METHANE (e.g. 90% or more) is described in this article. But it does not consider the effect of other gases, such as hydrogen and carbon dioxide.
Abstract: A PROCESS FOR THE PRODUCTION OF A GAS CONTAINING A HIGH PROPORTION OF METHANE (E.G. 90% OR MORE) COMPRISES: (I) INTRODUCING A PREHEATED MIXTURE OF STEAM AND THE VAPOUR OF A PREDOMINANTLY PARAFFINIC HYDROCARBON FEEDSTOCK HAVING A FINAL BOILING POINT OF NOT MORE THAN 300*C. (E.G. NAPHTHA) INTO A FIRST CATALYTIC REACTION ZONE IN WHICH THE MIXTURE REACTS IN THE PRESENCE OF A STEAM REFORMING CATALYST TO GIVE A GAS CONTAINING METHANE, HYDROGEN, CARBON OXIDES AND UNDECOMPOSED STEAM; (II) COOLING THE GAS PRODUCED IN STAGE (I) BY ADDING A FURTHER QUANTITY OF AT LEAST ONE OF THE REACTANTS; (III) INTRODUCING THE GASEOUS MIXTURE FORMED IN STAGE (II) INTO A SECOND CATALYTIC REACTION ZONE IN WHICH THE CONSTITUENTS OF THE MIXTURE REACT IN THE PRESENCE OF A CATALYST TO INCREASE THE PROPORTION OF METHANE IN THE MIXTURE; AND (IV) REMOVING STEAM AND CARBON DIOXIDE FROM THE GAS LEAVING THE SECOND CATALYTIC REACTION ZONE. THE GAS MAY BE USED AS A SYNTHETIC NATURAL GAS. IN BOTH STAGES (I) AND (III) THE TEMPERATURE IS KEPT AS LOW AS POSSIBLE, DEPENDING ON THE CATALYST: FOR EXAMPLE, STAGE (I) MAY BE OPERATED AT A CATALYST BED TEMPERATURE OF 400-500*C., AND STAGE (III) SUCH THAT THE OUTLET TEMPERATURE IS 200-250*C., WHEN A LOW TEMPERATURE STEAM REFORMING CATALYST IS USED IN BOTH STAGES. THE REACTION ZONE IN STAGE (III) MAY BE INTERNALLY COOLED, AT LEAST AT THE OUTLET END OF THE ZONE. THE COOLING IN STAGE (II) IS PREFERABLY ACHIEVED BY ADDING COLD HYDROCARBON FEEDSTOCK.

15 citations

Journal ArticleDOI
TL;DR: In this paper, the influence of operation parameters on CO conversion and CH4 yield was evaluated in a fluidized bed catalytic reactor over Ni/Al2O3 catalyst, which has significant effect on the activity of catalysts.

15 citations

Journal ArticleDOI
01 Dec 2015-Fuel
TL;DR: In this article, two different process configurations were compared in the Aspen Plus v 8 simulation environment for coal-to-synthetic natural gas (SNG) plants with carbon capture and storage technologies (CCS).

15 citations


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Performance
Metrics
No. of papers in the topic in previous years
YearPapers
202333
202270
202151
202054
201973
201852