Hydrogen recovery process

Patent · Sat Jan 01 00:00:00 EST 2000

OSTI ID:873433

Baker, Richard W ^[1]; Lokhandwala, Kaaeid A ^[2]; He, Zhenjie ^[3]; Pinnau, Ingo ^[1]

---

1. Palo Alto, CA
2. Union City, CA
3. Fremont, CA

A treatment process for a hydrogen-containing off-gas stream from a refinery, petrochemical plant or the like. The process includes three separation steps: condensation, membrane separation and hydrocarbon fraction separation. The membrane separation step is characterized in that it is carried out under conditions at which the membrane exhibits a selectivity in favor of methane over hydrogen of at least about 2.5.

• Research Organization: Membrane Technology and Research, Inc., Menlo Park, CA
• DOE Contract Number: FG03-98ER82618
• Assignee: Membrane Technology and Research, Inc. (Menlo Park, CA)
• Patent Number(s): US 6159272
• OSTI ID: 873433
• Country of Publication: United States
• Language: English

Related Subjects

hydrogen
recovery
process
treatment
hydrogen-containing
off-gas
stream
refinery
petrochemical
plant
separation
steps
condensation
membrane
hydrocarbon
fraction
step
characterized
carried
conditions
exhibits
selectivity
favor
methane
gas stream
membrane separation
recovery process
off-gas stream
treatment process
separation step
separation steps
hydrocarbon fraction
hydrogen recovery
petrochemical plant
/95/