Methods for the production of renewable Dimethyl JP10

Patent metadata

Field	Value
Publication number	US-9802873-B1
Application number	US-201615084592-A
Country	US
Kind code	B1
Filing date	Mar 30, 2016
Priority date	Jul 29, 2009
Publication date	Oct 31, 2017
Grant date	Oct 31, 2017

Abstract

A highly efficient method for the conversion of a natural product into the high density fuel RJ-4 with concomitant evolution of isobutylene for conversion to fuels and polymers, more specifically, embodiments of the invention relate to efficient methods for the conversion of the renewable, linear terpene alcohol, linalool into a drop-in, high density fuel suitable for ramjet or missile propulsion.

First claim

What is claimed is:

1. A method for producing fuels and/or byproducts, comprising:
reacting linalool with at least one ruthenium ring closing metathesis catalyst under solvent-free conditions to produce isobutylene and 1-methylcyclopent-2-enol;
removing said isobutylene by distillation to obtain said 1-methylcyclopent-2-enol in >95% yield; and
oligomerizing said isobutylene with at least one oligomerization catalyst to produce at least one of the fuels and/or by-products selected from the group consisting of gasoline, jet fuel, and polymers/elastomers.

2. The method according to claim 1 , wherein said at least one ruthenium ring closing metathesis catalyst is selected from the group consisting of first generation Grubbs' catalyst, second generation Grubbs', Grubbs'-Hoveyda catalyst, and catalysts with electron withdrawing alkoxides and labile pyridine ligands.

3. The method according to claim 1 , wherein said at least one oligomerization catalyst is selected from the group consisting of supported polyphosphoric acid, zeolites, metal oxides, cation exchange resins, Lewis acids, and acid clays.

4. A gasoline product produced by the method of claim 1 .

5. A jet fuel product produced by the method of claim 1 .

6. A polymer/elastomer product produced by the method of claim 1 .

7. A fuel blend produced by combining said high density fuels produced by the methods of claim 1 and said fuels produced by the methods of claim 1 .

Assignees

• Us Navy

Inventors

• Harvey Benjamin G
• Meylemans Heather A
• Quintana Roxanne L

Classifications

• C10L1/06

  for spark ignition · CPC title

• C10L2270/04

  for turbines, planes, power generation · CPC title

• C10L2270/023

  for gasoline engines · CPC title

• C10L2200/0469

  Renewables or materials of biological origin · CPC title

• C08F110/10

  Isobutene · CPC title