METHOD AND SYSTEM FOR PRODUCING METHANE USING HIGH GAS FEED RATES

摘要

The present invention provides a method and system for producing methane. The method comprises contacting methanogenic microorganisms in a reaction vessel with hydrogen and carbon dioxide, wherein the gas feed rate of hydrogen and carbon dioxide into the reaction vessel is at least 1 vvm in total or at least 1.2 vvm in total. The invention further provides a system for producing methane comprising at least one device for generating electric energy from a renewable and/or non-renewable energy source, at least one device for producing hydrogen and/or oxygen by the electrolysis of water and/or brine, and at least one bioreactor comprising a reaction vessel suitable for growing, fermenting and/or culturing methanogenic microorganisms and at least one device for providing a gas feed of hydrogen and carbon dioxide into the reaction vessel.