Process for producing a hydrogen-rich gas stream from the effluent of a catalytic hydrocarbon conversion reaction zone

Patent · Tue Feb 04 04:00:00 EST 1986

OSTI ID:6076825

Greenwood, A R; Maslin, R

A process is described for producing a hydrogen-rich gas stream by treating a hydrogen and hydrocarbon effluent from a catalytic hydrocarbon conversion reaction zone comprising the steps of: (a) passing at least a portion of the effluent to a first vapor-liquid equilibrium separation zone and recovering therefrom a hydrogen-containing vapor phase and a first liquid phase comprising substantially hydrocarbons; (b) subjecting at least a first portion of the hydrogen-containing vapor phase to indirect heat exchange with a hereinafter defined hydrogen-rich gas stream; (c) subjecting only a portion of the first liquid phase, comprising about 10 to 20 vol. % of the total first liquid phase, to indirect heat exchange with a hereinafter defined second liquid phase; (d) admixing the heat exchanged first portion of the hydrogen-containing vapor phase and the heat exchanged portion of the first liquid phase and subjecting the resulting admixture to refrigeration; (e) passing the refrigerated admixture to a second vapor-liquid equilibrium separation zone to produce a hydrogen-rich gas stream and a second liquid phase; (f) subjecting the hydrogen-rich gas stream to indirect heat exchange with the first portion of the hydrogen-containing vapor phase pursuant to step (b) above and subjecting the second liquid phase to indirect heat exchange with the portion of the first liquid phase pursuant to step (c) above; and, (g) recovering the heat exchanged hydrogen-rich gas stream.

• Assignee: UOP Inc., Des Plaines, IL
• Patent Number(s): US 4568451
• OSTI ID: 6076825
• Country of Publication: United States
• Language: English

Related Subjects

08 HYDROGEN
080100* -- Hydrogen-- Production
CATALYTIC CRACKING
CHEMICAL REACTIONS
CRACKING
DECOMPOSITION
ELEMENTS
ENERGY TRANSFER
EQUILIBRIUM
FLUIDS
GASES
HEAT TRANSFER
HYDROCARBONS
HYDROGEN
HYDROGEN PRODUCTION
LIQUIDS
NONMETALS
ORGANIC COMPOUNDS
PYROLYSIS
SEPARATION PROCESSES
SYNTHESIS GAS
THERMOCHEMICAL PROCESSES
VAPORS