Patent Number: 6,254,652

Title: At least three-step molten metal decomposition process cycle

Abstract: Sequential processing of hydrogen rich and hydrogen deficient feeds (14 and 16) in a heat balanced, single molten metal bath (40) to produce both 90+ mole % hydrogen (90) and one or more lower purity vapor streams (140) is disclosed. The molten metal bath is heated by oxygen addition (18) to burn dissolved carbon from the bath and then cooled by sequential addition of two feeds with differing hydrogen contents. Preferably a 98% hydrogen product with a pressure of at least 2 atm., absolute is obtained, along with a lower purity hydrogen containing stream and a separate carbon oxides flue gas stream.

Inventors: Malone; Donald P. (Grayson, KY)

Assignee: Marathon Ashland Petroleum LLC

International Classification: C10J 3/06 (20060101); C10J 3/00 (20060101); C10J 3/02 (20060101); C10J 3/57 (20060101); C10J 003/57 ()

Expiration Date: 07/03/2018