David Reginald Looney

US Patent:

20220242806, Aug 4, 2022

Filed:

Jan 18, 2022

Appl. No.:

17/578041

Inventors:

- Baytown TX, US
David R. Slim - Sarnia, CA
Grant H. Schumacher - Houston TX, US
Mark A. Nierode - Kingwood TX, US
David B. Looney - Houston TX, US
Keng-Fai Kuan - Singapore, SG
Mary M. Rethwisch - Houston TX, US

International Classification:

C07C 5/09
B01J 23/44

Abstract:

Disclosed are processes for converting an alkyne to an olefin comprising feeding a molecular-oxygen-containing gas stream into a converting zone of an alkyne converter along with an alkyn-containing feed mixture comprising hydrocarbons and molecular hydrogen to contact the converting catalyst. The converting catalyst can be regenerated online as a result.

US Patent:

20170072392, Mar 16, 2017

Filed:

Mar 9, 2015

Appl. No.:

15/122861

Inventors:

- Baytown TX, US
Robert G. TINGER - Friendswood TX, US
Gary D. MOHR - Sunset SC, US
David B. LOONEY - Houston TX, US

International Classification:

B01J 38/10
B01J 38/04

Abstract:

A method of reducing the amount of carbon monoxide present during the metal reduction step of start-up, thus, maintaining metal dispersion and improving the metal reduction and catalyst yields. Carbon monoxide formation is minimized during the start-up procedure and during the initial catalyst dryout phase in a hydrogen-containing atmosphere, gas is purged from the reactor system, either continuously at constant pressure or by a series of pressure/depressure cycles, to remove carbon monoxide. The purging is conducted at temperatures of about 30-500 C. and pressures of about −90-5,000 kPa(g) (−0.9-50 bar(g)). In this temperature range, carbon monoxide absorbed to the surface of the metal will desorb into the hydrogen-containing atmosphere and can be removed from the system along with carbon monoxide present in the atmosphere through the purging.