PROCESS AND APPARATUS FOR PRODUCING HYDROGEN

摘要

A process for producing hydrogen comprising the following steps: (a) converting a hydrocarbonaceous feed (e.g. natural gas) in a reaction zone at elevated temperature and pressure at least partly into a gas mixture containing hydrogen and carbon monoxide, (b) removing hydrogen (e.g. by means of pressure swing adsorption) from product gas obtained from step (a), and (c) combusting hydrogen-depleted off gas obtained from step (b) with an oxygen-containing gas in a combustion zone and employing energy thus produced in at least one step of the process (e.g. for convective heating of the reaction zone or gas compression). The invention further relates to an apparatus suitable for said process.