Equilibrium periodic separating reactors

Conference · Wed Jan 01 04:00:00 EST 1986

OSTI ID:6368669

Vaporciyan, G G; Kadlec, R H

A new unit operation is presented, which utilizes a rapid feed pressure swing cycle in a catalytic/adsorbent packed bed to effect both reaction and separation. This flow device combines a cyclic-steady-state pressure swing adsorber with a flow-forced catalytic reactor. Feed sequences for the pressure swing reactor (PSR) are those of rapid, single-bed pressure swing adsorbers (PSA). Only the case of extremely fast reactions is considered here. A perturbed reaction/adsorption equilibrium model is formulated and solved for different equilibrium constants and reaction stoichiometries for isothermal operation. The capacity and separation performance for PSRs can be the same order of magnitude as PSA alone. For reactions involving a single reactant and/or product, the principal component in a particular PSR exit stream depends upon both the reaction stoichiometry and feed fraction of the process cycle. The pressure dependency of the reaction equilibrium expression is the cause of separation reversals as parameters are varied.

• Research Organization: Dept. of Chemical Engineering, Univ. of Michigan, Ann Arbor, MI 48109
• OSTI ID: 6368669
• Report Number(s): CONF-861146-
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400105* -- Separation Procedures
ADSORBENTS
CATALYSTS
CHEMICAL REACTIONS
CHEMICAL REACTORS
EQUILIBRIUM
ISOTHERMS
PACKED BED
PERFORMANCE
PRESSURE DEPENDENCE
PRESSURE GRADIENTS
SEPARATION PROCESSES
SORPTIVE PROPERTIES
STOICHIOMETRY
SURFACE PROPERTIES
VOLUME