Patent ID: 9174844
Filing Date: 2015-11-03
Classification: B01D,C01B,C10G,C10J,C10K,Y02C,Y02E,Y02P

Abstract:
1. A process for producing hydrogen, comprising the steps of: reforming in a reforming unit a gaseous hydrocarbon fuel in the presence of calcium oxide and steam to remove carbon dioxide, sulfur and halide contaminants that are present in the form of H separating the solid-phase calcium-containing product from an enriched gaseous hydrogen product; regenerating the calcium oxide to produce a calcined sorbent by calcining the solid-phase calcium-containing product at a condition selected from the group consisting of: in the presence of steam, in the presence of carbon dioxide, in the presence of synthesis gas, in the presence of hydrogen and oxygen, under partial vacuum, and combinations thereof; reactivating the calcined sorbent by hydrating it in the presence of steam or water or a mixture of both; and injecting the hydrated sorbent into the reforming unit.