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Title: Synthesis process for producing alkylate hydrocarbons

Abstract

A process is described for converting oxygenate feedstock comprising methanol, dimethyl ether or mixtures thereof to liquid hydrocarbons comprising the steps of contacting the feedstock with zeolite catalyst in a primary catalyst stage at elevated temperature and moderate pressure to convert feedstock to light hydrocarbons comprising ethene and C/sub 3/ + olefin components; fractionating the light hydrocarbons in a sorption fractionation unit in contact with a liquid C/sub 4/ + isoparaffinic sorbent to selectively sorb C/sub 3/ + olefin; fractionating C/sub 3/ + sorbate to recover C/sub 5/ + gasoline and provide a C/sub 3/-C/sub 4/ olefin rich stream; reacting a portion of the C/sub 4/ + isoparaffin with the C/sub 3/-C/sub 4/ olefin stream in an alkylation reactor in the presence of acid alkylation catalyst to produce C/sub 7/+ paraffinic alkylate; solvent has a molar ratio of methanol to water of from about 0.01 to about 1.0 recycling at least a portion of the unreacted C/sub 4/ + isoparaffin to the sorption fractionation unit as lean sorbent.

Inventors:
; ;
Publication Date:
OSTI Identifier:
6840362
Patent Number(s):
US 4634798
Assignee:
Mobil Oil Corp., New York, NY
Resource Type:
Patent
Resource Relation:
Patent File Date: Filed date 23 Sep 1985
Country of Publication:
United States
Language:
English
Subject:
10 SYNTHETIC FUELS; 37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; ALKENES; ALKYLATION; GASOLINE; CHEMICAL PREPARATION; PARAFFIN; CATALYSTS; CHEMICAL REACTORS; FRACTIONATION; METHANOL; METHYL ETHER; MIXTURES; PRESSURE DEPENDENCE; SORPTION; ZEOLITES; ALCOHOLS; ALKANES; CHEMICAL REACTIONS; DISPERSIONS; ETHERS; FUELS; HYDROCARBONS; HYDROXY COMPOUNDS; INORGANIC ION EXCHANGERS; ION EXCHANGE MATERIALS; LIQUID FUELS; MATERIALS; MINERALS; ORGANIC COMPOUNDS; ORGANIC OXYGEN COMPOUNDS; OTHER ORGANIC COMPOUNDS; PETROLEUM PRODUCTS; SEPARATION PROCESSES; SYNTHESIS; WAXES; 090121* - Hydrocarbon Fuels- Chemical Synthesis- (1976-1989); 400201 - Chemical & Physicochemical Properties

Citation Formats

Owen, H, Tabak, S A, and Wright, B S. Synthesis process for producing alkylate hydrocarbons. United States: N. p., 1987. Web.
Owen, H, Tabak, S A, & Wright, B S. Synthesis process for producing alkylate hydrocarbons. United States.
Owen, H, Tabak, S A, and Wright, B S. Tue . "Synthesis process for producing alkylate hydrocarbons". United States.
@article{osti_6840362,
title = {Synthesis process for producing alkylate hydrocarbons},
author = {Owen, H and Tabak, S A and Wright, B S},
abstractNote = {A process is described for converting oxygenate feedstock comprising methanol, dimethyl ether or mixtures thereof to liquid hydrocarbons comprising the steps of contacting the feedstock with zeolite catalyst in a primary catalyst stage at elevated temperature and moderate pressure to convert feedstock to light hydrocarbons comprising ethene and C/sub 3/ + olefin components; fractionating the light hydrocarbons in a sorption fractionation unit in contact with a liquid C/sub 4/ + isoparaffinic sorbent to selectively sorb C/sub 3/ + olefin; fractionating C/sub 3/ + sorbate to recover C/sub 5/ + gasoline and provide a C/sub 3/-C/sub 4/ olefin rich stream; reacting a portion of the C/sub 4/ + isoparaffin with the C/sub 3/-C/sub 4/ olefin stream in an alkylation reactor in the presence of acid alkylation catalyst to produce C/sub 7/+ paraffinic alkylate; solvent has a molar ratio of methanol to water of from about 0.01 to about 1.0 recycling at least a portion of the unreacted C/sub 4/ + isoparaffin to the sorption fractionation unit as lean sorbent.},
doi = {},
url = {https://www.osti.gov/biblio/6840362}, journal = {},
number = ,
volume = ,
place = {United States},
year = {1987},
month = {1}
}