RUTH MYERS DAVIS
Nursing in Allentown, PA

License number
Pennsylvania RN168575L
Category
Nursing
Type
Registered Nurse
Address
Address
Allentown, PA 18103

Professional information

Ruth Davis Photo 1

Process For Hydrogenating Olefins

US Patent:
2009024, Oct 1, 2009
Filed:
Nov 4, 2008
Appl. No.:
12/264443
Inventors:
Ruth A. Davis - Allentown PA, US
Norman Macleod - Hartlepool, GB
Gordon Edward Wilson - Norton, GB
Assignee:
Air Products and Chemicals, Inc. - Allentown PA
Johnson Matthey PLC - London
International Classification:
C07C 5/02
US Classification:
585275, 585250
Abstract:
A process for hydrogenating olefins is disclosed. The olefins are present in a feed gas which includes Hand one or more sulfur compounds. The sulfur compounds may include HS and organic sulfur compounds. The feed gas is passed through a reactor at an inlet temperature from 100° C. to 250° C. The reactor contains a catalyst which is active at the inlet temperature. The reactor may be adiabatic. Saturated hydrocarbons are formed from the olefins. A temperature gradient may be formed in the reactor due to the exothermic nature of the hydrogenation reaction, causing the temperature to increase downstream in the reactor. At temperatures higher than the inlet temperature, HS may be formed from organic sulfur compounds. A gas mixture including saturated hydrocarbons, HS and Hexits the reactor and may be brought into contact with a chemical adsorbent which removes the HS. The gas stream may then be passed to a steam methane reformer.


Ruth Davis Photo 2

Nitrogen Rejection Fractionation System For Variable Nitrogen Content Natural Gas

US Patent:
4662919, May 5, 1987
Filed:
Feb 20, 1986
Appl. No.:
6/831374
Inventors:
Ruth A. Davis - Allentown PA
Assignee:
Air Products and Chemicals, Inc. - Allentown PA
International Classification:
F25J 302
US Classification:
62 25
Abstract:
The present invention is directed to a gas separation system for separating or rejecting nitrogen from a natural gas feed containing nitrogen, over a wide range of nitrogen concentrations, under elevated pressure using a single distillation column with two intermediate side condensers and a closed loop heat pump which reboils and partially refluxes the column. The lower of the intermediate condensers is cooled by heat exchange with the heat pump fluid and the overhead nitrogen fraction of the column. The upper of the intermediate condensers is cooled by heat exchange with the overhead nitrogen fraction of the column. The process can handle feeds with increasing nitrogen composition and more than 100 vppm carbon dioxide. The process provides a high methane recovery over the entire feed range, and provides a nitrogen product having an elevated pressure suitable for recycling and reinjection into an oil or gas well to maintain well head pressure.


Ruth Davis Photo 3

Dephlegmator Process For Nitrogen Rejection From Natural Gas

US Patent:
4732598, Mar 22, 1988
Filed:
Nov 10, 1986
Appl. No.:
6/929045
Inventors:
Howard C. Rowles - Center Valley PA
Ruth A. Davis - Allentown PA
Assignee:
Air Products and Chemicals, Inc. - Allentown PA
International Classification:
F25J 304
US Classification:
62 28
Abstract:
A process is disclosed for the rejection of nitrogen from natural gas with the optional recovery of natural gas liquids. The process of the present invention employs a dephlegmator which provides a high purity nitrogen reflux for a low pressure distillation column and provides subcooling of the feed and reflux to the low pressure column and reboiling of the low pressure column. The dephlegmator of the present invention combines the high pressure column and three heat exchangers of a conventional double column process into a single, compact unit, with corresponding reductions in interconnecting piping and capital investment.


Ruth Davis Photo 4

Membrane Unit Turn-Down Control System

US Patent:
4857082, Aug 15, 1989
Filed:
Sep 15, 1988
Appl. No.:
7/244769
Inventors:
Stephen P. DiMartino - Topton PA
Jeffrey A. Hopkins - Whitehall PA
Ruth A. Davis - Allentown PA
Assignee:
Air Products and Chemicals, Inc. - Allentown PA
International Classification:
B01D 5322
US Classification:
55 16
Abstract:
A permeator system for separating at least one gaseous component from a feed gas mixture containing at least one other component using a semi-permeable membrane is disclosed which maintains high permeate product purity and desired component recovery during periods of turn-down in capacity. In accordance with the present invention, the permeator system contains a series of flow and pressure sensors and valves which regulate differential pressure across the membrane based upon permeate product demand or feed availability.


Ruth Davis Photo 5

Integrated Reformer Process For The Production Of Carbon Black

US Patent:
5011670, Apr 30, 1991
Filed:
Mar 7, 1989
Appl. No.:
7/320206
Inventors:
Ruth A. Davis - Allentown PA
David M. Nicholas - New Tripoli PA
Dale D. Smith - Allentown PA
Richard A. Wright - Macungie PA
Assignee:
Air Products and Chemicals, Inc. - Allentown PA
International Classification:
C01B 3162, C09C 148
US Classification:
423450
Abstract:
Carbon black is produced from a pyrolyzed hydrocarbon wherein pyrolysis is effected by combusting a synthesis gas containing hydrogen and carbon monoxide. The synthesis gas is produced from reforming a hydrocarbon fuel, wherein the reformation is heated by combusting carbon black effluent tail gas or indirect heat exchange of the hot tail gas.