Hydrogen and carbon monoxide production by hydrocarbon steam reforming and pressure swing adsorption purification

Patent · Mon Mar 16 23:00:00 EST 1992

OSTI ID:5286119

Krishnamurthy, R

This patent describes a method for producing hydrogen and carbon monoxide from a feed mixture comprising hydrogen, carbon monoxide, carbon dioxide, and methane. It comprises passing the feed mixture through a first pressure swing adsorption system containing an adsorption bed comprising an adsorbent having a greater affinity for carbon dioxide, methane, and carbon monoxide than for hydrogen to separate hydrogen as a pure non-adsorbed product and carbon dioxide, methane, and carbon monoxide as an adsorbed fraction; desorbing carbon monoxide from the pressure swing adsorption system to form a carbon monoxide-rich fraction; desorbing carbon dioxide and methane from the pressure swing absorption system to form a carbon dioxide-rich fraction; passing the carbon monoxide-rich fraction to a second pressure swing adsorption system containing an adsorption bed comprising an adsorbent having a greater affinity for carbon monoxide than for hydrogen, carbon dioxide, and methane to separate carbon monoxide as an absorbed fraction and hydrogen, carbon dioxide, and methane as a non-adsorbed fraction; and desorbing carbon monoxide from the pressure swing adsorption system to form a pure carbon monoxide product.

• Assignee: BOC Group, Inc., Murray Hill, NJ (United States)
• Patent Number(s): US 5096470; A
• Application Number: PPN: US 7-622872
• OSTI ID: 5286119
• Country of Publication: United States
• Language: English

Related Subjects

08 HYDROGEN
080103* -- Hydrogen-- Production-- Steam Reformer Processes
ADSORBENTS
ALKANES
CARBON COMPOUNDS
CARBON DIOXIDE
CARBON MONOXIDE
CARBON OXIDES
CHALCOGENIDES
CHEMICAL FEEDSTOCKS
CHEMICAL REACTION KINETICS
CHEMICAL REACTIONS
HYDROCARBONS
HYDROGEN PRODUCTION
KINETICS
METHANE
ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
REACTION KINETICS
REFORMER PROCESSES
STEAM REFORMER PROCESSES