The present invention relates generally to processes for hydromethanating a carbonaceous feedstock in a hydromethanation reactor to a methane-enriched raw product stream, and more specifically to processing of solid char by-product removed from the hydromethanation reactor to improve the carbon utilization and thermal efficiency and economics of the overall process by co-producing electric power and steam from the by-product char in addition to the end-product pipeline quality substitute natural gas.

An industrial high temperature reformer and the reforming method in which a temperature of the reforming furnace is maintained at 1000 C. or higher by burning the coke, and a temperature of at least an upper half of the reforming furnace is maintained at 1200 C. or higher by burning the syngas, thereby producing syngas at a capacity of 500 m.sup.3/hour or more by reforming all carbonaceous feedstock which is supplied to the reforming furnace.

An industrial high temperature reformer and the reforming method in which a temperature of the reforming furnace is maintained at 1000 C. or higher by burning the coke, and a temperature of at least an upper half of the reforming furnace is maintained at 1200 C. or higher by burning the syngas, thereby producing syngas at a capacity of 500 m.sup.3/hour or more by reforming all carbonaceous feedstock which is supplied to the reforming furnace.

An industrial high temperature reformer and the reforming method in which a temperature of the reforming furnace is maintained at 1000 C. or higher by burning the coke, and a temperature of at least an upper half of the reforming furnace is maintained at 1200 C. or higher by burning the syngas, thereby producing syngas at a capacity of 500 m.sup.3/hour or more by reforming all carbonaceous feedstock which is supplied to the reforming furnace.

An industrial high temperature reformer and the reforming method in which a temperature of the reforming furnace is maintained at 1000 C. or higher by burning the coke, and a temperature of at least an upper half of the reforming furnace is maintained at 1200 C. or higher by burning the syngas, thereby producing syngas at a capacity of 500 m.sup.3/hour or more by reforming all carbonaceous feedstock which is supplied to the reforming furnace.

The present invention relates generally to processes for hydromethanating a carbonaceous feedstock in a hydromethanation reactor to a methane-enriched raw product stream, and more specifically to processing of solid char by-product removed from the hydromethanation reactor to improve the carbon utilization and thermal efficiency of the overall process and thereby lower the net costs of the end-product pipeline quality substitute natural gas.

The present invention relates generally to processes for hydromethanating a carbonaceous feedstock in a hydromethanation reactor to a methane-enriched raw product stream, and more specifically to processing of solid char by-product removed from the hydromethanation reactor to improve the carbon utilization and thermal efficiency of the overall process and thereby lower the net costs of the end-product pipeline quality substitute natural gas.

The present disclosure relates to a method of generating high-purity hydrogen from waste plastic without producing carbon dioxide. In the method of generating hydrogen according to the embodiments of the present disclosure, reactants include hydroxide, and thus, the amount and purity of the generated hydrogen increases, a reaction temperature suitable for reaching an appropriate hydrogen production rate is lowered, and the amount of generated carbon dioxide is significantly decreased.

The present disclosure relates to a method of generating high-purity hydrogen from waste plastic without producing carbon dioxide. In the method of generating hydrogen according to the embodiments of the present disclosure, reactants include hydroxide, and thus, the amount and purity of the generated hydrogen increases, a reaction temperature suitable for reaching an appropriate hydrogen production rate is lowered, and the amount of generated carbon dioxide is significantly decreased.

A method for converting carbonaceous raw materials and in particular biomass into hydrogen, includes the steps of: gasification of the carbon-containing raw materials in a gasifier, wherein heated water vapour is introduced into the gasifier and used for gasification; and cleaning of the hydrogen-containing synthesis gas produced in the gasification, wherein the gasification is an allothermal gasification and the heated water vapour is used both as gasification agent and as heat carrier for the gasification, wherein energy not used for H2 production is at least partially reused for the production and/or superheating of water vapour.