SEPARATION OF PROPYLENE FROM HYDROCARBON MIXTURES

Sebastian C.  Reyes; Venkatesan Venkata Krishnan; Gregory J. DeMartin; John H. Sinfelt; Karl G. Strohmaier; Jose G. Santiesteban

SEPARATION OF PROPYLENE FROM HYDROCARBON MIXTURES

Sebastian C. Reyes (Inventor), Venkatesan Venkata Krishnan (Inventor), Gregory J. DeMartin (Inventor), John H. Sinfelt (Inventor), Karl G. Strohmaier (Inventor), Jose G. Santiesteban (Inventor)

Research output: Patent

Abstract

In a process for separating propylene from a mixture comprising propylene and propane, the mixture is passed through a bed of an adsorbent comprising a porous crystalline material having (i) a diffusion time constant for propylene of at least 0.1 sec-1, when measured at a temperature of 373° K and a propylene partial pressure of 8 kPa, and (ii) a diffusion time constant for propane, when measured at a temperature of 373° K and a propane partial pressure of 8 kPa, less than 0.02 of said diffusion time constant for
propylene. The bed preferentially adsorbs propylene from the mixture. The adsorbed propylene is then desorbed from the bed either by lowering the pressure or raising the temperature of the bed.

Original language	English
Patent number	6,730,142 B2
IPC	US006730142B2
Filing date	19/03/02
Publication status	Published - 4 May 2004
Externally published	Yes

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title = "SEPARATION OF PROPYLENE FROM HYDROCARBON MIXTURES",

abstract = "In a process for separating propylene from a mixture comprising propylene and propane, the mixture is passed through a bed of an adsorbent comprising a porous crystalline material having (i) a diffusion time constant for propylene of at least 0.1 sec-1, when measured at a temperature of 373° K and a propylene partial pressure of 8 kPa, and (ii) a diffusion time constant for propane, when measured at a temperature of 373° K and a propane partial pressure of 8 kPa, less than 0.02 of said diffusion time constant forpropylene. The bed preferentially adsorbs propylene from the mixture. The adsorbed propylene is then desorbed from the bed either by lowering the pressure or raising the temperature of the bed.",

author = "Reyes, {Sebastian C.} and Krishnan, {Venkatesan Venkata} and DeMartin, {Gregory J.} and Sinfelt, {John H.} and Strohmaier, {Karl G.} and Santiesteban, {Jose G.}",

year = "2004",

month = may,

day = "4",

language = "English",

publisher = "U.S. Patent and Trademark Office ",

type = "Patent",

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TY - PAT

T1 - SEPARATION OF PROPYLENE FROM HYDROCARBON MIXTURES

AU - Reyes, Sebastian C.

AU - Krishnan, Venkatesan Venkata

AU - DeMartin, Gregory J.

AU - Sinfelt, John H.

AU - Strohmaier, Karl G.

AU - Santiesteban, Jose G.

PY - 2004/5/4

Y1 - 2004/5/4

N2 - In a process for separating propylene from a mixture comprising propylene and propane, the mixture is passed through a bed of an adsorbent comprising a porous crystalline material having (i) a diffusion time constant for propylene of at least 0.1 sec-1, when measured at a temperature of 373° K and a propylene partial pressure of 8 kPa, and (ii) a diffusion time constant for propane, when measured at a temperature of 373° K and a propane partial pressure of 8 kPa, less than 0.02 of said diffusion time constant forpropylene. The bed preferentially adsorbs propylene from the mixture. The adsorbed propylene is then desorbed from the bed either by lowering the pressure or raising the temperature of the bed.

AB - In a process for separating propylene from a mixture comprising propylene and propane, the mixture is passed through a bed of an adsorbent comprising a porous crystalline material having (i) a diffusion time constant for propylene of at least 0.1 sec-1, when measured at a temperature of 373° K and a propylene partial pressure of 8 kPa, and (ii) a diffusion time constant for propane, when measured at a temperature of 373° K and a propane partial pressure of 8 kPa, less than 0.02 of said diffusion time constant forpropylene. The bed preferentially adsorbs propylene from the mixture. The adsorbed propylene is then desorbed from the bed either by lowering the pressure or raising the temperature of the bed.

M3 - Patent

M1 - 6,730,142 B2

Y2 - 2002/03/19

PB - U.S. Patent and Trademark Office

ER -

SEPARATION OF PROPYLENE FROM HYDROCARBON MIXTURES

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