FIELD: chemical technology.
SUBSTANCE: invention relates to a method for producing hydrogen and carbon dioxide. Method involves the following steps: (a) oxidation of solid substance in the first reaction zone to obtain hydrogen; (b) transfer of oxidized form of a solid substance to other reaction zone wherein a reducing agent flow is fed chosen from hydrocarbons, and its reaction with a reducing agent flow to obtain carbon dioxide; (c) extraction of a solid substance reduced form and its feeding to the first reaction zone. Heat is supplied using additional block for maintenance the temperature regimen disposed between two reaction zones and by using heat formed in the further oxidation of solid substance with air. Heat is supplied during one of the following processes preferably: (b) or (c). Used solid substance has no at least one oxidative-reductive member as a binary compound. Proposed invention provides enhancing effectiveness of process based on supplying heat to reaction zones using the additional block.
EFFECT: improved preparing method.
30 cl, 5 dwg, 6 tbl, 11 ex
Authors
Dates
2007-06-20—Published
2001-03-11—Filed