Search

Paul Rodewald Phones & Addresses

  • Ithaca, NY
  • Dunmore, PA
  • Pennington, NJ
  • 1010 Pugh St, State College, PA 16801 (814) 861-7249
  • Worthington, OH
  • Rocky Hill, NJ
  • Ewing, NJ

Publications

Us Patents

Zeolite Catalysts Having Stabilized Hydrogenation-Dehydrogenation Function

View page
US Patent:
20020091293, Jul 11, 2002
Filed:
Oct 29, 2001
Appl. No.:
10/041215
Inventors:
Clarence Chang - Princeton NJ, US
Paul Rodewald - Rocky Hill NJ, US
International Classification:
B01J029/064
C07C005/02
US Classification:
585/906000, 502/074000, 502/085000, 502/060000
Abstract:
The invention provides a zeolite catalyst suitable for use in shape-selective hydrocarbon conversion processes. The catalyst is modified by incorporation therein of a hydrogenation-dehydrogenation functional metal, followed by gradient selectivation with an organosilicon compound under conversion conditions, wherein the gradient selectivation conditions are characterized by a progressive temperature gradient. The use of a progressive temperature gradient during the in situ selectivation procedure unexpectedly yields a catalyst in which the hydrogenation-dehydrogenation function is stabilized, thereby enabling long duration hydrocarbon conversion processes with low by-product make.

Paraffin Isomerization In The Presence Of Isobutane Or Isopentane And A Catalyst Of Aluminum Chloride Intercalated In Graphite

View page
US Patent:
39924734, Nov 16, 1976
Filed:
Apr 4, 1975
Appl. No.:
5/565181
Inventors:
Paul Gerhard Rodewald - Rocky Hill NJ
Assignee:
Mobil Oil Corporation - New York NY
International Classification:
C07C 528
US Classification:
2606837
Abstract:
Isomerization of normal paraffin hydrocarbons with 5 to 7 carbon atoms per molecule to isoparaffins of high octane number is effected in the presence of at least one compound of the group isobutane and isopentane and a catalyst consisting essentially of graphite having intercalated in the lattice thereof between about 5 and about 55 weight percent of aluminum chloride.

Manufacture Of Light Olefins

View page
US Patent:
40667146, Jan 3, 1978
Filed:
Dec 8, 1975
Appl. No.:
5/638403
Inventors:
Paul G. Rodewald - Rocky Hill NJ
Assignee:
Mobil Oil Corporation - New York NY
International Classification:
C07C 120
C07C 1102
US Classification:
260682
Abstract:
A catalytic process is provided for converting lower monohydric alcohols and their ethers, especially methanol and dimethyl ether, to a hydrocarbon mixture rich in C. sub. 2 -C. sub. 3 olefins, by contact, under conversion conditions, with a catalyst comprising a crystalline aluminosilicate zeolite having a silica to alumina mole ratio of at least about 12, a constraint index, as hereinafter defined, within the approximate range of 1 to 12 and containing, in cationic form, between about 0. 01 and about 1. 9 milliequivalents per gram of one or more metals characterized by an ionic radius exceeding 1 Angstrom.

Method Of Removing Chlorofluorocarbons From The Atmosphere

View page
US Patent:
49976320, Mar 5, 1991
Filed:
May 29, 1990
Appl. No.:
7/529997
Inventors:
Paul G. Rodewald - Rocky Hill NJ
Assignee:
Mobil Oil Corporation - Fairfax VA
International Classification:
C01B 719
B01J 800
US Classification:
423240
Abstract:
A method of using photoactive semiconductors to reduce atmosphere chlorofluorocarbons by dispersing photoactive semiconductor particles, namely titanium dioxide, zinc oxide or zinc sulfide into the stratosphere, activating the particles through exposure to ambient light, accumulating chlorofluorocarbons by chemisorption into the semiconductor, precipitating the reacted particles from the stratosphere and hydrolyzing the chlorofluorocarbon moiety into involatile components.

Acylation Of Lower Olefin Oligomers

View page
US Patent:
50211781, Jun 4, 1991
Filed:
Feb 7, 1990
Appl. No.:
7/476080
Inventors:
Catherine S. H. Chen - Berkley Heights NJ
Paul G. Rodewald - Rocky Hill NJ
Assignee:
Mobil Oil Corporation - Fairfax VA
International Classification:
C10M10520
C10M12924
US Classification:
252 52R
Abstract:
Oligomers produced from lower alkenes by acidic zeolite catalyzed oligomerization can be converted to useful lubricant additives or lubricants by acylation of olefinic bonds in the oligomers, whereby oligomers containing alpha, beta unsaturated ketone structures are produced. The products so produced from C. sub. 20 + olefins exhibit favorable lubricant qualities of viscosity index and low pour points. The discovery is particularly applicable to the acylation of oligomers produced from lower alkenes such as propylene by oligomerization using a ZSM-5 catalyst which has been surface deactivated.

Regioselective Methylation Of Toluene To Para-Xylene

View page
US Patent:
54988144, Mar 12, 1996
Filed:
Apr 5, 1994
Appl. No.:
8/223383
Inventors:
Clarence D. Chang - Princeton NJ
Paul G. Rodewald - Rocky Hill NJ
Assignee:
Mobil Oil Corp. - Fairfax VA
International Classification:
C07C 552
US Classification:
585475
Abstract:
A process and catalyst for Shape Selective Hydrocarbon Conversions such as the regioselective disproportionation of toluene to para-xylene wherein hydrocarbon to be converted is passed over a catalytic molecular sieve which is trim selectivated with a reaction stream comprising toluene and a silicon-containing high efficiency p-xylene selectivating agent under toluene conversion conditions. The toluene disproportionation process attains a single-pass para-xylene product over 95% coupled with a toluene conversion of at least 15%. The present invention also includes the highly para-selective catalyst which results from the treatment of a catalytic molecular sieve with a high efficiency p-xylene selectivating agent under the recited conditions.

Reactivation Of Partially Deactivated Catalyst Employing Ultrasonic Energy

View page
US Patent:
49142569, Apr 3, 1990
Filed:
Jun 30, 1988
Appl. No.:
7/213801
Inventors:
Paul G. Rodewald - Rocky Hill NJ
Assignee:
Mobil Oil Corp. - New York NY
International Classification:
C07C 258
B01J 3734
B08B 312
US Classification:
585726
Abstract:
A solid catalyst composition which has undergone a partial loss of catalytic activity due to the accumulation of reaction product residue is treated in a chemical conversion process reaction zone in the presence of feedstock(s) with ultrasonic energy of a magnitude and a duration sufficient to restore at least a significant percentage of the lost activity.

Catalytic Conversion

View page
US Patent:
46652647, May 12, 1987
Filed:
May 9, 1986
Appl. No.:
6/861790
Inventors:
Paul G. Rodewald - Rocky Hill NJ
Ernest W. Valyocsik - Yardley PA
Assignee:
Mobil Oil Corporation - New York NY
International Classification:
C07C 202
C07C 258
C07C 252
US Classification:
585533
Abstract:
A process is provided for converting feedstock comprising C. sub. 2. sup. + olefins, C. sub. 2 -C. sub. 7 paraffins or mixtures thereof to product comprising C. sub. 5. sup. + hydrocarbons over a catalyst comprising zeolite ZSM-58.
Paul G Rodewald from Ithaca, NYDeceased Get Report