David H Lowry

US Patent:

6845813, Jan 25, 2005

Filed:

Oct 13, 2003

Appl. No.:

10/684038

Inventors:

Clifton Troy Knight - Houston TX, US
David Raymond Lowry - Houston TX, US
Judeth Brannon Corry - Manvel TX, US

Assignee:

Knighthawk Engineering - Houston TX

International Classification:

F28F 922
F28F 1306

US Classification:

165174, 165119, 1651341, 165158

Abstract:

A flow distributor for mounting in an inlet of a heat exchanger includes a nose cone and one or more diverting rings. The nose cone is aerodynamically shaped to divert impingent gas flow around the nose cone. A first diverting ring is spaced outwardly from the nose cone and can be oriented such that at least a portion of the gas flow diverted by the nose cone is redirected into the wake of the nose cone. A second diverting ring can be spaced outwardly from the first diverting ring and can be oriented to divert gas flow impingent thereon. Struts connect the nose cone and one or more rings. Refractory on the wall of the inlet is shaped to reduce the recirculation at the outer perimeter thereof. The flow distributor is installed in the inlet with refractory to achieve substantially equal flow across the tube sheet of the heat exchanger.

US Patent:

20050262850, Dec 1, 2005

Filed:

Jan 24, 2005

Appl. No.:

11/041835

Inventors:

Clifton Knight - Houston TX, US
David Lowry - Houston TX, US
Judeth Corry - Manvel TX, US
Kenneth Williams - LaMarque TX, US

Assignee:

Knighthawk Engineering - Houston TX

International Classification:

F02C006/08

US Classification:

060782000

Abstract:

A flow distributor for mounting in an inlet of a heat exchanger includes a nose cone and one or more diverting rings. The nose cone is aerodynamically shaped to divert impingent gas flow around the nose cone. A first diverting ring is spaced outwardly from the nose cone and can be oriented such that at least a portion of the gas flow diverted by the nose cone is redirected into the wake of the nose cone. A second diverting ring can be spaced outwardly from the first diverting ring and can be oriented to divert gas flow impingent thereon. Struts connect the nose cone and one or more rings. Refractory on the wall of the inlet is shaped to reduce the recirculation at the outer perimeter thereof. The flow distributor is installed in the inlet with refractory to achieve substantially equal flow across the tube sheet of the heat exchanger.

US Patent:

20160185688, Jun 30, 2016

Filed:

Dec 30, 2014

Appl. No.:

14/586409

Inventors:

- Des Plaines IL, US
David Lowry - Mount Prospect IL, US
Matthew Lippmann - Chicago IL, US
David James Shecterle - Arlington Heights IL, US

International Classification:

C07C 5/27
B01J 8/02
C07C 6/10

Abstract:

Hydrocarbon processing apparatuses and processes for producing n-pentane and isobutane are provided herein. In an embodiment, a process for producing n-pentane and isobutane includes providing a hydrocarbon feed stream that includes C4 and C5 hydrocarbons. A recycle stream that includes C4+ hydrocarbons and the hydrocarbon feed stream is combined to produce a combined feed stream. The combined feed stream is separated to produce an iC4 product stream, an nC5+ product stream, and an iC5/nC4 feed stream. The iC5/nC4 feed stream is simultaneously disproportionated and isomerized in an isomerization zone to produce an intermediate stream that includes C3-C6 hydrocarbons. The C3-C6 hydrocarbons in the intermediate stream are separated to produce a C3− stream and the recycle stream that includes C4+ hydrocarbons.