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US 10,870,610 B2Granted
Production of neopentane
AssigneeExxonMobil Chemical Patents Inc.
InventorsKun Wang, Lorenzo C. DeCaul, Steven W. Levine, Etienne Mazoyer, James R. Lattner, Helge Jaensch, Ali A. Kheir
Life of this patent
Estimating the term…
Abstract
Disclosed herein are processes for producing neopentane. The processes generally relate to demethylating isooctane to produce neopentane. The isooctane may be provided by the alkylation of isobutane with butylenes.
Claims19
A process for producing neopentane, the process comprising:
- (a) contacting isobutane with butylenes under alkylation conditions effective to produce an alkylation product comprising isooctane;
- and
- (b) demethylating the isooctane by contacting the isooctane with hydrogen at a temperature of from 200 to 500° C., a hydrogen partial pressure of about 7 psia to about 500 psia, and in the presence of a catalyst comprising at least one member selected from the group consisting of Fe, Co, Ni, Rh, Jr, Ru, Pt, Pd, combinations thereof, compounds thereof, and mixtures of compounds thereof, to produce a demethylation product comprising at least 10 wt % neopentane based on the weight of the demethylation product, wherein the catalyst further comprises at least one member selected from the group consisting of Cu, Au, Ag, Sn, Zn, Re, combinations thereof, compounds thereof, and mixtures of compounds thereof.
A process for producing neopentane, the process comprising:
- (a) providing a stream comprising isooctane;
- and
- (b) demethylating the isooctane by contacting the isooctane with hydrogen at a temperature of from 200 to 500° C., a hydrogen partial pressure of about 7 psia to about 500 psia, and in the presence of a catalyst comprising at least one member selected from the group consisting of Fe, Co, Ni, Rh, Ir, Ru, Pt, Pd, combinations thereof, compounds thereof, and mixtures of compounds thereof, to produce a demethylation product comprising at least 10 wt % neopentane based on the weight of the demethylation product, wherein the catalyst further comprises at least one member selected from the group consisting of Cu, Au, Ag, Sn, Zn, Re, combinations thereof, compounds thereof, and mixtures of compounds thereof.
Dependencies are inferred from the claim text.