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US 6,284,157 B1Granted
Process for producing an H2-CO gas mixture
AssigneeABB Research Ltd.
InventorsBaldur Eliasson, Ulrich Kogelschatz, Li-Ming Zhou
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Abstract
In a discharge reactor with a low-current gas discharge, an inlet gas made of a CH4—CO2 gas mixture is converted into a synthesis gas having an H2—CO gas mixture which has a higher energy content than the inlet gas. For a predeterminable synthesis gas volume ratio R=H2/CO, the requisite CO2 proportion in the inlet gas can be derived from a function curve (f) or calculated according to V=−4.76·R3+37.57·R2−99.13·R+105.39.
Claims8
A process for producing a synthesis gas which contains an H2—CO gas mixture, the process comprising:
- a) providing an inlet gas which contains a CH4—CO2 gas mixture;
- b) providing a discharge reactor including a dielectric, an electrode facing a first surface of the dielectric, and a metallic tube facing a second surface of the dielectric, a reaction space being defined between the dielectric and the metallic tube;
- c) passing the CH4—CO2 gas mixture through the reaction space of the discharge reactor in which a low-current gas discharge is operated from an AC electrical voltage source via the dielectric;
- and
- d) obtaining a predeterminable synthesis gas volume ratio R=H2/CO smaller than one in the synthesis gas by varying the proportional volume of CO2 in the inlet gas according to a predetermined function, wherein said proportional volume does not deviate by more than ±20% from an associated function value which can be derived from the predetermined function.
2 more elements
Dependencies are inferred from the claim text.