1
Leonard B Graiff: Method and fuel composition for control or reversal of octane requirement increase and for improved fuel economy. Shell Oil Company, John M Duncan, November 2, 1982: US04357148 (37 worldwide citation)

The control or reversal of octane requirement increase phenomenon together with improved fuel economy in a spark ignition internal combustion engine is achieved by introducing with the combustion charge a fuel composition containing an octane requirement increase-inhibiting amount of (a) certain oil ...


2
Henricus M J Bijwaard, Michael A M Boersma, Swan T Sie: Process for the preparation of middle distillates. Shell Oil Company, John M Duncan, Ronald R Reper, May 24, 1983: US04385193 (35 worldwide citation)

Middle distillate hydrocarbons are produced from feed mixtures of carbon monoxide and hydrogen by contacting said feed at elevated temperature and pressure in a first stage with certain impregnated catalysts and contacting at least the middle distillate fraction of the product of the first stage in ...


3
Wesley A Parker, Thomas S Dewitz, George P Hinds Jr, John E Gwyn, A Haluk Bilgic, Donald E Hardesty: Separation of fluid cracking catalyst particles from gaseous hydrocarbons. Shell Oil Company, John M Duncan, June 19, 1984: US04455220 (27 worldwide citation)

Catalyst and hydrocarbon vapors are separated in a cyclone zone attached to the discharge of a riser cracking operation. Vortex stabilizing means separating the cyclone zone from a stripping zone allows stripping gas from said stripping zone to be passed upwardly into said cyclone zone countercurren ...


4
Martin F M Post, Swan T Sie: Process for carrying out catalytic conversions. Shell Oil Company, John M Duncan, Ronald R Reper, September 6, 1983: US04403044 (22 worldwide citation)

A process for the manufacture and/or conversion of hydrocarbons comprises contacting as feed any of: a gaseous mixture of carbon monoxide and hydrogen, acyclic organic compounds, hydrocarbon compounds, and mixtures thereof, under conversion conditions with a catalyst comprising silicalite.


5
Gerrit J Pronk: Process for the complete replacement of particles in vessels. Shell Oil Company, John M Duncan, March 5, 1985: US04502946 (22 worldwide citation)

Process for the complete replacement under operating conditions of particles in a vessel provided with a feed inlet and, if desired, a separate particle inlet, a particle outlet and an effluent outlet, wherein part of the feed passing through the vessel during withdrawal of particles is by-passing t ...


6
Lambert Schaper, Swan T Sie: Process for preparation of hydrocarbons. Shell Oil Company, John M Duncan, Ronald R Reper, July 6, 1982: US04338089 (20 worldwide citation)

A process is disclosed for the preparation of a hydrocarbon mixture by contacting in a first stage a feed mixture of hydrogen and carbon monoxide with an H.sub.2 /CO molar ratio of less than 1.0 with a trifunctional catalyst combination containing (a) at least one metal component having catalytic ac ...


7
Cesar A Trevino, Richard G Stellman: Catalytic hydroconversion process with catalyst retainer. Shell Oil Company, John M Duncan, Ronald R Reper, February 15, 1983: US04374020 (20 worldwide citation)

An improved process for hydroconversion of mineral oil is disclosed wherein a spherical hydroconversion catalyst having a diameter greater than 6 mm, a surface area above 200 m.sup.2 /gm, and a crush strength above 70 pounds is used to replace the inert materials which are used to support or retain ...


8
Andras G T G Kortbeek, Emmanuel E A Neel, Guy Barre: Process for the preparation of a hydrocarbon mixture from H.sub.2 /CO mixtures. Shell Oil Company, John M Duncan, October 18, 1983: US04410637 (14 worldwide citation)

A process for the preparation of a hydrocarbon mixture from a mixture of carbon monoxide and hydrogen, using a catalyst combination containing one or more metal components with catalytic activity for the conversion of an H.sub.2 /CO mixture into acyclic hydrocarbons, e.g., Ru, Co, Fe, Ni and Cr, and ...


9
Walter C G Kosters: Process for simultaneous separation of aromatics from heavy and light hydrocarbon streams. Shell Oil Company, John M Duncan, January 31, 1984: US04428829 (14 worldwide citation)

A process for the simultaneous separation of aromatics and non-aromatics from a heavy hydrocarbon stream and a light hydrocarbon stream in which process:


10
Michael A M Boersma, Johannes M Nanne, Martin F M Post: Process for the preparation of crystalline silicates. Shell Oil Company, John M Duncan, Ronald R Reper, June 29, 1982: US04337176 (14 worldwide citation)

An improved process for the preparation of certain crystalline iron silicates particularly suitable for converting acyclic oxygen-containing hydrocarbons into aromatic hydrocarbons wherein use of high silicon content compounds together with certain amines results in silicates having unexpected catal ...



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