FIELD: chemistry.
SUBSTANCE: invention refers to method of hydrogen formation from methane containing gas, specifically natural gas. Gas hydrocarbons are catalyst decomposed in reforming furnace by water steam into hydrogen, carbon oxide and carbon dioxide. Following conversion step includes catalytic conversion of formed carbon oxide into carbon dioxide and hydrogen by water steam. Carbon dioxide is outgassed from converted gas flow by scrubber. While washed and oxygen-rich hydrogen is then divided with adsorption plant into hydrogen gas product flow and exhaust gas flow. The latter together with hydrogen vented from gas flow behind scrubber, is supplied to reforming furnace and combusted there. Installation contains at least one reforming furnace with combustion chamber, conversion stage with at least one conversion reactor for catalyst carbon oxide conversion by water steam into carbon dioxide, carbon dioxide separation scrubber and connected hydrogen separation adsorption plant attached to for extraction to which back the leader is attached to gas pipeline jointing back to combustion chamber and used for reformer heating with adsorption plant exhaust gas flow. And additional scrubber exhaust gas flow portion reverser to combustion chamber of reforming furnace is provided.
EFFECT: simple and efficient hydrogen formation process with carbon dioxide trace released to atmosphere.
6 cl, 2 dwg
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Authors
Dates
2009-01-20—Published
2004-07-24—Filed