Start-up process for a unit for producing highly thermally-integrated hydrogen by reforming a hydrocarbon feedstock

摘要

The invention relates to a start-up process for a unit for producing highly thermally-integrated hydrogen by reforming a hydrocarbon feedstock that comprises a stage a wherein a burner whose purpose is to ensure start-up is supplied with a mixture of hydrocarbon feedstock and air, a stage b wherein a water stream is evaporated by indirect heat exchange with at least one of the hot streams of the process, a stage c wherein the hydrocarbon feedstock to be reformed is evaporated and heated and then introduced in gaseous form in a reforming reactor, and a stage d wherein the start-up burner is shut down, and a burner that is in permanent operation is lit.