Exxonmobil Research and Engineering Company

Adeana Richelle Bishop

Jack Wayne Johnson

Loren Leon Ansell

William Berlin Genetti

Michael Siskin

Christine Nicole Elia

Nancy Marie Page

Alan Roy Katritzky

Kostyantyn Mykolayevich Kirichenko

Rocco A Fiato

Edmund John Mozeleski

Andrzej Malek

Andrzej Mariusz Malek

Michael Charles Kerby

Gregg Johnston Howsmon

Andrzej Malez

Fischer-Tropsch hydrocarbon synthesis using a noncobalt catalyst is used to produce waxy fuel and lubricant oil hydrocarbons from synthesis gas derived from natural gas. The waxy hydrocarbons are hydrodewaxed, with reduced conversion to lower boiling hydrocarbons, by contacting the waxy hydrocarbons, in the presence of hydrogen, with an unsulfided hydrodewaxing catalyst that has been reduced and then treated by contacting it with a stream containing one or more oxygenates.

Oxygenate treatment of dewaxing catalyst for greater yield of dewaxed product

The present invention relates to a process for the production of severely sterically hindered amino-ether alcohols using a catalyst based on the combination of one or more catalytically active metals supported in a dispersed form on one or more ordered mesoporous materials as support.

Catalytic preparation of severely sterically hindered amino-ether alcohols using a metal loaded catalyst

Severely sterically hindered secondary aminoether alcohols are prepared by a process comprising reacting a ketene with sulfuric acid to produce an anhydride which is then reacted with, to cleave the ring of, a dioxane to yield a cleavage product which is then aminated using an amine, followed by hydrolysis with a base to yield the desired severely sterically hindered secondary aminoether alcohol.

Synthesis of severely sterically hindered secondary aminoether alcohols from a ketene and/or carboxylic acid halide and/or carboxylic acid anhydride

Severely sterically hindered secondary aminoether alcohols are prepared by reacting organic carboxylic, organic carboxylic acid halides, acid anhydrides or a ketene with an alkyl, alkaryl or alkylhalo sulfonate to yield a sulfonic-carboxylic anhydride compound which is then reacted with a dioxane to cleave the ring of the dioxane, yielding a cleavage product which cleavage product is then aminated with an alkylamine and hydrolyzed with base to yield the severely sterically hindered secondary aminoether alcohol.

Synthesis of sterically hindered secondary aminoether alcohols

The present invention relates to a process for preparing severely sterically hindered secondary amine ether alcohols and diamine polyalkenyl ethers by reacting a primary amino compound with a polyalkenylether glycol in the presence of a high activity nickel powder hydrogenation catalyst which is marked by high conversion of reactants and increased selectivity to desired final product.

Synthesis of severely sterically hindered amino-ether alcohols and diaminopolyalkenyl ethers using a high activity powder catalyst

Severely sterically hindered secondary aminoether alcohols are prepared by reacting acid anhydrides or organic carboxylic acid halides with SOto yield a sulfonic carboxylic anhydride compound which is then reacted with a dioxane to cleave the ring of the dioxane yielding a cleavage product which is then aminated with an alkylamine and hydrolyzed with a base to yield the severely sterically hindered secondary aminoether alcohol.

Synthesis of sterically hindered secondary aminoether alcohols from acid anhydride and/or acid halide and sulfur trioxide

A heavy hydrocarbon composition with utility as a heavy hydrocarbon base stock comprising at least 95 wt % paraffin molecules, of which at least 90 wt % are isoparaffin, containing hydrocarbon molecules having consecutive numbers of carbon atoms, is a liquid at 100&#xb0; C., at which temperature its kinematic viscosity, as measured by ASTM D-445, is above 8 cSt, has an initial boiling point of least 850&#xb0; F. (454&#xb0; C.) and an end boiling point of at least 1000&#xb0; F. (538&#xb0; C.), wherein the branching index (BI), as measured by the percentage of methyl hydrogens, and the branching proximity (CH&#x3e;4), as measured by the percentage of recurring methylene carbons which are four or more carbon atoms removed from an end group or branch, of said isoparaffinic hydrocarbon molecules, are such that:

Heavy hydrocarbon composition with utility as a heavy lubricant base stock

Fischer-Tropsch hydrocarbon synthesis using a cobalt catalyst is used to produce waxy fuel and lubricant oil hydrocarbons from synthesis gas derived from natural gas. The waxy hydrocarbons are hydrodewaxed, with reduced conversion to lower boiling hydrocarbons, by contacting the waxy hydrocarbons, in the presence of hydrogen, with an unsulfided 10-ring, 1-dimensional zeolite catalyst that has been reduced and then treated by contacting it with the synthesized hydrocarbons containing one or more oxygenates, including indigenous oxygenate. Tail gas from the hydrodewaxing reactor can be used for the hydrocarbon synthesis.

Dewaxed fuel and lubricant base stocks are made by (a) producing a synthesis gas from natural gas, (b) reacting the Hand CO in the gas in the presence of a cobalt Fischer-Tropsch catalyst, at reaction conditions effective to synthesize a waxy hydrocarbon feed boiling in the fuel and lubricant oil ranges, which is hydrodewaxed in a first stage to produce a dewaxed fuel and a partially dewaxed lubricant fraction. The partially dewaxed lubricant fraction is separated into heavy and lower boiling fractions each of which is separately hydrodewaxed, to produce lubricant base stocks. A hydrodewaxing catalyst comprising a hydrogenation component, binder and solid acid component used to hydrodewax at least one, and preferably at least two of the waxy feed and partially dewaxed heavy and lower boiling lubricant fractions.

Production of fuels and lube oils from fischer-tropsch wax

A synthetic, isoparaffinic heavy hydrocarbon composition useful as a heavy lubricant base stock contains hydrocarbon molecules having consecutive numbers of carbon atoms, is a liquid at 100&#xb0; C., at which temperature its kinematic viscosity is above 8 cSt and has respective initial and end boiling points of at least 850 and 1000&#xb0; F. (454 and 538&#xb0; C.). The branching index BI and the branching proximity CH&#x3e;4 of the isoparaffinic hydrocarbon molecules, are such that:BI&#x2212;0.5(CH&#x3e;4)&#x3c;15; and&#x2003;&#x2003;(a)BI+0.85(CH&#x3e;4)&#x3c;45;&#x2003;&#x2003;(b)as measured over the hydrocarbon composition as a whole.

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Baton Rouge, LA, United States of America

Adeana Richelle Bishop