JOHN C JUBIN
Engineers in West Chester, PA
License number
Pennsylvania PE037372E
Category
Engineers
Type
Professional Engineer
Address
Address
West Chester, PA 19382
Professional information
Catalytic Converter System And Progress
US Patent:
5840933, Nov 24, 1998
Filed:
Oct 29, 1996
Appl. No.:
8/740461
Inventors:
John C. Jubin - West Chester PA
W. Wayne Wentzheimer - Glen Mills PA
W. Wayne Wentzheimer - Glen Mills PA
Assignee:
Arco Chemical Technology, L.P. - Greenville DE
International Classification:
C07D30119
US Classification:
549529
Abstract:
A reactor and process is for the production of oxirane compounds by reaction of an olefin such as propylene with an organic hydroperoxide using a solid contact catalyst, characterized by the following features:
(1) the reactor is divided into a series of separate zones, each zone containing a bed of solid epoxidation catalyst;
(2) conditions are maintained so as to provide the liquid phase without substantial vapor formation throughout the entire reactor;
(3) cold reactor feed is provided which is preheated to reaction temperature by separate indirect heat exchange with reaction liquid from various of the separate reactor zones;
(4) reaction liquid from the last of the series of reaction zones is reduced in pressure to form a gas-liquid mixture at a lower temperature, and this gas liquid mixture is heated by indirect heat exchange with the reaction liquid from at least one of the separate reactor zones.
Oxidation Of Isobutane To Tertiary Butyl Hydroperoxide
US Patent:
5149885, Sep 22, 1992
Filed:
Feb 20, 1992
Appl. No.:
7/839983
Inventors:
John C. Jubin - West Chester PA
Assignee:
Arco Chemical Technology, L.P. - Wilmington DE
International Classification:
C07C40904
US Classification:
568571
Abstract:
The present invention relates to the oxidation of isobutane to TBHP wherein the oxidation exothermic heat of reaction is removed by circulating a portion of the liquid reaction mixture through an indirect heat exchanger and comprises the further feature that the molecular oxygen necessary for the oxidation is introduced by means of sparging into the cooled, circulating liquid reaction mixture.
Integrated Process For Cyclohexanone Oxime Production
US Patent:
5451701, Sep 19, 1995
Filed:
Jun 27, 1994
Appl. No.:
8/266820
Inventors:
John G. Zajacek - Devon PA
John C. Jubin - West Chester PA
Guy L. Crocco - Wilmington DE
John C. Jubin - West Chester PA
Guy L. Crocco - Wilmington DE
Assignee:
Arco Chemical Technology, L.P. - Greenville DE
International Classification:
C07C24904, C07D20102, C07D20104, C07D20106
US Classification:
564267
Abstract:
An integrated process for producing cyclohexanone oxime, a caprolactam precursor, is provided wherein a secondary alcohol is utilized to generate the hydrogen peroxide oxidizing agent and as a reaction medium for ammoximation. The ketone produced as a co-product is recycled back to the secondary alcohol by hydrogenation.
Catalytic Converter And Method For Highly Exothermic Reactions
US Patent:
5760253, Jun 2, 1998
Filed:
Jan 29, 1997
Appl. No.:
8/791796
Inventors:
Jeffrey B. Danner - Kennett Square PA
John C. Jubin - West Chester PA
Richard J. Wolff - West Chester PA
John C. Jubin - West Chester PA
Richard J. Wolff - West Chester PA
Assignee:
Arco Chemical Technology, L.P. - Greenville DE
International Classification:
C07D30119
US Classification:
549529
Abstract:
A reactor and process is for the production of oxirane compounds by reaction of an olefin such as propylene with an organic hydroperoxide using a solid contact catalyst, characterized by the following features:
(1) the reactor is divided into a series of separate zones, each zone containing a bed of solid epoxidation catalyst;
(2) about 25-75% of the heat of reaction is removed by preheating cold reactor feed by direct contact with a heated recycle stream from the reactor; and
(3) about 25-75% of the heat of reaction is accounted for by a reaction mixture temperature rise of 20. degree. -100. degree. F. and by vaporization of 15-40% of the net reactor product.
Hydrocarbon Conversion
US Patent:
5198590, Mar 30, 1993
Filed:
Jul 30, 1992
Appl. No.:
7/923018
Inventors:
John A. Sofranko - West Chester PA
Glenn E Cozzone - West Chester PA
John C. Jubin - West Chester PA
W. Wayne Wentzheimer - Glen Mills PA
Glenn E Cozzone - West Chester PA
John C. Jubin - West Chester PA
W. Wayne Wentzheimer - Glen Mills PA
Assignee:
Arco Chemical Technology, L.P. - Wilmington DE
International Classification:
C07C 4166
US Classification:
568697
Abstract:
Low value feed hydrocarbons are converted to high octane value tertiary ethers using a multiple riser fluidized solids catalytic reactor wherein in a first riser the hydrocarbon feed is converted to iso and linear C. sub. 4 and C. sub. 5 olefins, the iso-olefins are etherified, the linear C. sub. 4 and C. sub. 5 olefins are isomerized to iso C. sub. 4 and C. sub. 5 olefins in a second riser of the fluidized solids reactor, iso C. sub. 4 and C. sub. 5 olefins from the second riser are also etherified to high octane value tertiary ethers, and catalyst from both risers is regenerated in a common regeneration zone.
Purification Of A Methanol Stream
US Patent:
5863391, Jan 26, 1999
Filed:
Aug 15, 1997
Appl. No.:
8/911972
Inventors:
Michael A. Rueter - Norristown PA
John C. Jubin - West Chester PA
John C. Jubin - West Chester PA
Assignee:
ARCO Chemical Technology, L.P. - Greenville DE
International Classification:
B01D 340, C07C 2726
US Classification:
203 14
Abstract:
Acetaldehyde may be effectively removed from a contaminated methanol stream using a distillation method wherein a solvent stream containing a relatively heavy polar compound such as water or propylene glycol is utilized as an extractive distillation solvent. Following the separation of the polar compound from the bottoms stream obtained by extractive distillation, the purified methanol may be recycled for use as a reaction solvent in an olefin epoxidation process.
Process Stream Purification
US Patent:
5883268, Mar 16, 1999
Filed:
Oct 23, 1997
Appl. No.:
8/955412
Inventors:
Jeffery B. Danner - Kennet Square PA
John C. Jubin - West Chester PA
John C. Jubin - West Chester PA
Assignee:
Arco Chemical Technology, L.P. - Greenville DE
International Classification:
C07D30119
US Classification:
549529
Abstract:
Ethylbenzene hydroperoxide suitable for epoxidizing an olefin using a heterogeneous titanium catalyst is provided by the sequence of:
a) flashing acids containing ethylbenzene peroxidase to reduce the temperature thereof to 170. degree. F. or lower,
b) contacting the flash bottoms with aqueous base and separating a base contaminated deacidified hydroperoxide stream from an organics contaminated aqueous stream,
c) removing organics from the organics contaminated aqueous stream by extraction with ethylbenzene,
d) separating base from the base contaminated deacidified hydroperoxide stream by water extraction, and
e) stripping water from deacidified water extracted hydroperoxide stream.
Vent Recovery System
US Patent:
2004003, Feb 26, 2004
Filed:
Aug 26, 2002
Appl. No.:
10/193067
Inventors:
John Jubin - West Chester PA, US
Te Chang - West Chester PA, US
Te Chang - West Chester PA, US
International Classification:
C10G021/14, C07C007/00
US Classification:
208/337000, 585/867000
Abstract:
A process for absorbing propylene from a gaseous propylene oxide process purge stream wherein propane liquid is used to absorb the propylene.
Monoepoxide Purification
US Patent:
5000825, Mar 19, 1991
Filed:
Jun 6, 1990
Appl. No.:
7/533961
Inventors:
T. Thomas Shih - Bryn Mawr PA
John C. Jubin - West Chester PA
John C. Jubin - West Chester PA
Assignee:
Arco Chemical Technology, Inc. - Wilmington DE
International Classification:
B01D 340, B01D 342, C07D30132
US Classification:
203 3
Abstract:
A method is provided for the separation by extractive distillation of oxygenated impurities from a monoepoxide while avoiding epoxide loss, wherein lower glycol is used as extractive solvent in amounts so as to provide only up to about 0. 3 mol % solvent in the vapor in the extractive distillation zone.
Oxidation Of Secondary Alcohols
US Patent:
5846497, Dec 8, 1998
Filed:
Jan 17, 1996
Appl. No.:
8/587682
Inventors:
John C. Jubin - West Chester PA
Assignee:
ARCO Chemical Technology, L.P. - Greenville DE
International Classification:
B01J 802, B01J 3502
US Classification:
422220
Abstract:
An apparatus for the molecular oxygen oxidation of a secondary alcohol such as isopropanol to hydrogen peroxide is provided.