(JP6511226-W)      A method for reducing the carbon content in a feed stream of natural gas or other hydrocarbon gases for a combustion process or a chemical process in order to thereby achieve a redn. in or elimination of the discharge of carbon dioxide during combustion or other chemical application of the gas is claimed, comprising: (a) completely or partially subjecting the natural gas or hydrocarbon gas to a pyrolytic process wherein all or part of the feed gas is passed through a reactor wherein it is completely or partially decomposed to the desired degree into a hydrogen constituent and a carbon constituent. (b) conveying the carbon constituent together with any undecomposed constituent from the reactor and any separate constituent of the natural gas or hydrocarbon gas to a combustion process or chemical process; and (c) conveying the pptd. carbon constituent out of the process for separate application.    The use of the pure hydrogen extracted by the above method is claimed, e.g. in fuel cells or as fuel in internal combustion engines. The use of the pure carbon extracted by the above method is claimed, e.g. as a redn. material in the metallurgical industry. Application of the above method in connection with gas fired power stations and the combustion of hydrocarbons for energy purposes is claimed.    USE/ADVANTAGE -   The invention provides a method for the combustion of hydrocarbons with reduced or eliminated carbon dioxide discharge.    (JP2572351-B2)      A method for reducing the carbon content in a feed stream of natural gas or other hydrocarbon gases for a combustion process or a chemical process in order to thereby achieve a redn. in or elimination of the discharge of carbon dioxide during combustion or other chemical application of the gas is claimed, comprising: (a) completely or partially subjecting the natural gas or hydrocarbon gas to a pyrolytic process wherein all or part of the feed gas is passed through a reactor wherein it is completely or partially decomposed to the desired degree into a hydrogen constituent and a carbon constituent. (b) conveying the carbon constituent together with any undecomposed constituent from the reactor and any separate constituent of the natural gas or hydrocarbon gas to a combustion process or chemical process; and (c) conveying the pptd. carbon constituent out of the process for separate application.    The use of the pure hydrogen extracted by the above method is claimed, e.g. in fuel cells or as fuel in internal combustion engines. The use of the pure carbon extracted by the above method is claimed, e.g. as a redn. material in the metallurgical industry. Application of the above method in connection with gas fired power stations and the combustion of hydrocarbons for energy purposes is claimed.    USE/ADVANTAGE -   The invention provides a method for the combustion of hydrocarbons with reduced or eliminated carbon dioxide discharge.    (US5725616-A)      A method for reducing the carbon content in a feed stream of natural gas or other hydrocarbon gases for a combustion process or a chemical process in order to thereby achieve a redn. in or elimination of the discharge of carbon dioxide during combustion or other chemical application of the gas is claimed, comprising: (a) completely or partially subjecting the natural gas or hydrocarbon gas to a pyrolytic process wherein all or part of the feed gas is passed through a reactor wherein it is completely or partially decomposed to the desired degree into a hydrogen constituent and a carbon constituent. (b) conveying the carbon constituent together with any undecomposed constituent from the reactor and any separate constituent of the natural gas or hydrocarbon gas to a combustion process or chemical process; and (c) conveying the pptd. carbon constituent out of the process for separate application.    The use of the pure hydrogen extracted by the above method is claimed, e.g. in fuel cells or as fuel in internal combustion engines. The use of the pure carbon extracted by the above method is claimed, e.g. as a redn. material in the metallurgical industry. Application of the above method in connection with gas fired power stations and the combustion of hydrocarbons for energy purposes is claimed.    USE/ADVANTAGE -   The invention provides a method for the combustion of hydrocarbons with reduced or eliminated carbon dioxide discharge.    (RU2093457-C1)      A method for reducing the carbon content in a feed stream of natural gas or other hydrocarbon gases for a combustion process or a chemical process in order to thereby achieve a redn. in or elimination of the discharge of carbon dioxide during combustion or other chemical application of the gas is claimed, comprising: (a) completely or partially subjecting the natural gas or hydrocarbon gas to a pyrolytic process wherein all or part of the feed gas is passed through a reactor wherein it is completely or partially decomposed to the desired degree into a hydrogen constituent and a carbon constituent. (b) conveying the carbon constituent together with any non-decomposed constituent from the reactor and any separate constituent of the natural gas or hydrocarbon gas to a combustion process or chemical process; and (c) conveying the pptd. carbon constituent out of the process for separate application.    The use of the pure hydrogen extracted by the above method is claimed, e.g. in fuel cells or as fuel in internal combustion engines. The use of the pure carbon extracted by the above method is claimed, e.g. as a redn. material in the metallurgical industry. Application of the above method in connection with gas fired power stations and the combustion of hydrocarbons for energy purposes is claimed.    USE/ADVANTAGE -   The invention provides a method for the combustion of hydrocarbons with reduced or eliminated carbon dioxide discharge.