Combined production of vapor and methane gas from a feed gas, comprises producing methane gas by catalytic conversion of feed gas, transferring heat formed during conversion to vapor generating unit, and producing vapor in generating unit

摘要

The method comprises producing the methane gas by catalytic conversion of the feed gas in a methanation unit (100), transferring the heat formed during the catalytic conversion from the methanation unit to a vapor generating unit (300) by a heat transfer unit (200), and producing vapor in the vapor generating unit, from a liquid present in the unit by the transferred heat, where the methanation step and the heat transferring steps are carried out by a number of parallelly switched functional units (A, B, C) that are formed from the methanation unit and the heat transfer unit. The method comprises producing the methane gas by catalytic conversion of the feed gas in a methanation unit (100), transferring the heat formed during the catalytic conversion from the methanation unit to a vapor generating unit (300) by a heat transfer unit (200), and producing vapor in the vapor generating unit, from a liquid present in the unit by the transferred heat, where the methanation step and the heat transferring steps are carried out by a number of parallelly switched functional units (A, B, C) that are formed from the methanation unit and the heat transfer unit and are modularly interchangeable. The methanation unit comprises a methanation reactor and the catalysts are activated by heat, where the heat is carried by the feed gas itself or supplied to the feed gas through the methanation reactor. An independent claim is included for a modular vapor-methane gas reactor (10) for combined production of vapor and methane gas from a feed gas.