초록 ▼

This invention provides a gas engine in which a natural gas reforming apparatus for thermally decomposing CH.sub.4 in a natural gas into a reformed fuel of CO and H.sub.2 is used to improve the thermal efficiency, CO.sub.2 in an exhaust gas being used for the thermal decomposition operation to reduc

This invention provides a gas engine in which a natural gas reforming apparatus for thermally decomposing CH.sub.4 in a natural gas into a reformed fuel of CO and H.sub.2 is used to improve the thermal efficiency, CO.sub.2 in an exhaust gas being used for the thermal decomposition operation to reduce the CO.sub.2 content of the discharged exhaust gas and minimize the generation of NOx. An oxygen eliminating apparatus for removing O.sub.2 from CO.sub.2 separated from the exhaust gas can be provided in the natural gas reforming apparatus. In this natural gas reforming apparatus, a gas fuel case in which a gas fuel flows is provided on the outer side of an exhaust gas passage body in which the exhaust gas flows, and a surface of a porous member provided in the gas fuel case is coated with a catalyst. The oxygen eliminating apparatus comprises a porous carbon member provided in a CO.sub.2 passage so as to subject O.sub.2 in CO.sub.2 and C to a reaction and convert the same substances into CO and CO.sub.2, and a power source for electrically heating the porous carbon member.

대표청구항 ▼

[ What is claimed is:] [1.] A natural gas reforming apparatus comprising an exhaust gas pipe in which an exhaust gas discharged from an engine flows, an exhaust gas passage body provided in said exhaust gas pipe and comprising a porous material provided with a honeycomb or passage holes forming an e

[ What is claimed is:] [1.] A natural gas reforming apparatus comprising an exhaust gas pipe in which an exhaust gas discharged from an engine flows, an exhaust gas passage body provided in said exhaust gas pipe and comprising a porous material provided with a honeycomb or passage holes forming an exhaust gas passage, a gas fuel case provided on the outer side of said exhaust gas pipe and having an inlet from which a gas fuel supplied from a gas fuel supply source and containing CH.sub.4 as a main component is supplied, and an inlet from which CO.sub.2 separated from the exhaust gas is supplied, a porous member provided in said gas fuel case, forming a gas fuel passage and comprising a porous ceramic material, a catalyst applied to a surface of said gas fuel passage-forming porous member, and having an action of converting CH.sub.4 and CO.sub.2 into a reformed fuel of CO and H.sub.2 by thermally decomposing CH.sub.4 and CO.sub.2 by the thermal energy of the exhaust gas, and a heat insulating material provided on an outer circumferential surface of said gas fuel case.