Eric Glen Weber

US Patent:

60044527, Dec 21, 1999

Filed:

Nov 14, 1997

Appl. No.:

8/968462

Inventors:

Gary A Ash - Kingwood TX
Nhu Q Dao - Richmond CA
Arnold J Gloyn - Walnut Creek CA
N J Haritatos - El Cerrito CA
Paul I Hodgen - Sugar Land TX
Stuart R MacPherson - Mobile AL
Scott Gordon Morrison - Petaluma CA
Gerald J Nacamuli - Mill Valley CA
Paul M Spindler - Kingwood TX
Bruce J Thom - Concord CA
Eric P Weber - Kingwood TX
Richard Wolpert - Berkeley CA

Assignee:

Chevron Chemical Company LLC - San Francisco CA

International Classification:

C10G 5106

US Classification:

208 80

Abstract:

A process is provided for producing high purity benzene and high purity paraxylene from a hydrocarbon feed. In one aspect, the process comprises: (a) reforming a hydrocarbon feed using either a monofunctional catalyst or a bifunctional catalyst to provide one or more reformate streams; (b) fractionating the reformate stream to provide a toluene stream, a benzene stream, and a xylene stream; (c) subjecting the toluene stream to disproportionation; (d) purifying the benzene stream by extraction followed by distillation to provide a high purity benzene product; and (e) purifying the xylene stream by simulated moving bed countercurrent adsorption followed by crystallization to provide a high purity paraxylene product.

US Patent:

20200002250, Jan 2, 2020

Filed:

Sep 9, 2019

Appl. No.:

16/564314

Inventors:

- The Woodlands TX, US
Eric P. Weber - Kingwood TX, US

Assignee:

Chevron Phillips Chemical Company LP - The Woodlands TX

International Classification:

C07C 5/41
C07C 5/31
B01J 19/24

Abstract:

Disclosed are a catalytic method and system for producing aromatic hydrocarbons from aliphatic hydrocarbons or light naphtha. In an aspect, the process comprises adding a diluent comprising a heavy aromatic hydrocarbon (for example, C-C) to a reactor feedstock comprising aliphatic hydrocarbons (for example, C-C) or light naphtha to form a reactor feed stream, such that the heat capacity of reactor feed stream is higher than the heat capacity of feedstock. The reactor feed stream is heated and contacting with a catalyst under conditions sufficient to aromatize at least a portion of the aliphatic hydrocarbons and form a product stream comprising a primary aromatic hydrocarbon product and a heavy aromatic hydrocarbon product. In an aspect, the diluent can comprise a heavy aromatic hydrocarbon having at least one carbon atom more than the primary aromatic hydrocarbon product.

US Patent:

20190315666, Oct 17, 2019

Filed:

Apr 13, 2018

Appl. No.:

15/952575

Inventors:

- The Woodlands TX, US
Eric P. Weber - Kingwood TX, US

Assignee:

Chevron Phillips Chemical Company LP - The Woodlands TX

International Classification:

C07C 5/41
C07C 5/31
B01J 19/24

Abstract:

Disclosed are a catalytic method and system for producing aromatic hydrocarbons from aliphatic hydrocarbons or light naphtha. In an aspect, the process comprises adding a diluent comprising a heavy aromatic hydrocarbon (for example, C-C) to a reactor feedstock comprising aliphatic hydrocarbons (for example, C-C) or light naphtha to form a reactor feed stream, such that the heat capacity of reactor feed stream is higher than the heat capacity of feedstock. The reactor feed stream is heated and contacting with a catalyst under conditions sufficient to aromatize at least a portion of the aliphatic hydrocarbons and form a product stream comprising a primary aromatic hydrocarbon product and a heavy aromatic hydrocarbon product. In an aspect, the diluent can comprise a heavy aromatic hydrocarbon having at least one carbon atom more than the primary aromatic hydrocarbon product.