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Title: Catalytic reactive separation system for energy-efficient production of cumene

Abstract

The present invention relates to an atmospheric pressure, reactive separation column packed with a solid acid zeolite catalyst for producing cumene from the reaction of benzene with propylene. Use of this un-pressurized column, where simultaneous reaction and partial separation occur during cumene production, allow separation of un-reacted, excess benzene from other products as they form. This high-yielding, energy-efficient system allows for one-step processing of cumene, with reduced need for product purification. Reacting propylene and benzene in the presence of beta zeolite catalysts generated a selectivity greater than 85% for catalytic separation reactions at a reaction temperature of 115 degrees C and at ambient pressure. Simultaneously, up to 76% of un-reacted benzene was separated from the product; which could be recycled back to the reactor for re-use.

Inventors:
 [1];  [2]
  1. Nuevo Laredo, MX
  2. Albuquerque, NM
Issue Date:
Research Org.:
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
968335
Patent Number(s):
7566429
Application Number:
11/152,997
Assignee:
Sandia Corporation (Albuquerque, NM)
Patent Classifications (CPCs):
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02P - CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
C - CHEMISTRY C07 - ORGANIC CHEMISTRY C07C - ACYCLIC OR CARBOCYCLIC COMPOUNDS
DOE Contract Number:  
AC04-94AL85000
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY

Citation Formats

Buelna, Genoveva, and Nenoff, Tina M. Catalytic reactive separation system for energy-efficient production of cumene. United States: N. p., 2009. Web.
Buelna, Genoveva, & Nenoff, Tina M. Catalytic reactive separation system for energy-efficient production of cumene. United States.
Buelna, Genoveva, and Nenoff, Tina M. Tue . "Catalytic reactive separation system for energy-efficient production of cumene". United States. https://www.osti.gov/servlets/purl/968335.
@article{osti_968335,
title = {Catalytic reactive separation system for energy-efficient production of cumene},
author = {Buelna, Genoveva and Nenoff, Tina M},
abstractNote = {The present invention relates to an atmospheric pressure, reactive separation column packed with a solid acid zeolite catalyst for producing cumene from the reaction of benzene with propylene. Use of this un-pressurized column, where simultaneous reaction and partial separation occur during cumene production, allow separation of un-reacted, excess benzene from other products as they form. This high-yielding, energy-efficient system allows for one-step processing of cumene, with reduced need for product purification. Reacting propylene and benzene in the presence of beta zeolite catalysts generated a selectivity greater than 85% for catalytic separation reactions at a reaction temperature of 115 degrees C and at ambient pressure. Simultaneously, up to 76% of un-reacted benzene was separated from the product; which could be recycled back to the reactor for re-use.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2009},
month = {7}
}

Works referenced in this record:

Reactive distillation — industrial applications, process design & scale-up
journal, January 2001


Alkylation of Benzene with Short-Chain Olefins over MCM-22 Zeolite: Catalytic Behaviour and Kinetic Mechanism
journal, May 2000


Acetalization of ethylene glycol with formaldehyde using cation-exchange resins as catalysts: batch versus reactive distillation
journal, September 1997


Alkylation of benzene by propene on a series of Beta zeolites: toward a better understanding of the mechanisms
journal, March 2000


Reactive distillation: Non-ideal flow behaviour of the liquid phase in structured catalytic packings
journal, May 2002


Scale-up of reactive distillation columns with catalytic packings
journal, March 2004


Study on alkylation of benzene with ethylene over β-zeolite catalyst to ethylbenzene by in situ IR
journal, February 2002


Multifunctional reactors
journal, June 1992


Study on a catalytic distillation column with a novel internal
journal, November 2002