Method for on board conversion of co2 to fuel and apparatus therefor

Patent metadata

Field	Value
Publication number	US-2016369688-A1
Application number	US-201615150742-A
Country	US
Kind code	A1
Filing date	May 10, 2016
Priority date	Jun 16, 2015
Publication date	Dec 22, 2016
Grant date	—

Abstract

The invention relates to a method and a system for on board production of hydrocarbon fuels. Electrochemistry is used to combine CO 2 produced by an internal combustion engine with hydrogen and optionally, water, to produce syngas and other fuels.

First claim

1 . A method for converting CO 2 produced by an internal combustion engine (ICE) on a moving vehicle into hydrocarbon fuel, comprising:
(i) transporting exhaust gas containing CO 2 and produced by said ICE to a heat exchanger to remove excess heat from said gas; and (iii) combining said CO 2 with water in said electrochemical reactor to form hydrocarbon fuel.

2 . The method of claim 1 , further comprising moving the heat exchanged exhaust gas to a CO 2 separator to remove CO 2 thereform.

3 . The method of claim 2 , further comprising said heat gas to separator CO 2 transporting said CO 2 to an electrochemical generator.

4 . The method of claim 1 , further comprising transporting said hydrocarbon fuel to a storage means.

5 . The method of claim 1 , wherein said heat exchanger is a thermometric cell, a Rankin cycler or a sterling engine.

6 . The method of claim 2 , wherein said CO 2 separator is a liquid solvent, a solid adsorbent, or a membrane permeable to CO 2 but not other gases present in said exhaust gas.

7 . The method of claim 6 , wherein said membrane is also permeable to gaseous H 2 O or H 2 O in vapor form.

8 . The method of claim 1 , further comprising supplying electrical energy from an electrical generator to said electrochemical reactor.

9 . The method of claim 8 , further comprising supplying heat energy from said heat exchanger to said electrochemical reactor.

10 . A method for producing hydrocarbon fuel produced by an internal combustion engine (ICE) on a moving vehicle, comprising transporting water vapor and CO 2 from exhaust gas produced by said ICE to an electrochemical reactor and reacting said H 2 O and CO 2 at said electrochemical reactor to form hydrocarbon fuel.

11 . The method of claim 1 or 10 , wherein said hydrocarbon fuel is syngas, ethanol, methane, methanol, or dimethylether.

12 . The method of claim 1 or 10 , further comprising producing H 2 at said electrochemical reactor.

13 . The method of claim 1 or 10 , further comprising mixing said hydrocarbon fuel produced at said electrochemical generator with a primary fuel for said ICE.

14 . The method of claim 10 , further comprising converting said H 2 O and CO 2 to H 2 and CO, and transporting said H 2 and CO to a Fisher Tropsch reactor to produce hydrocarbons.

15 . The method of claim 10 , further comprising converting said H 2 O and CO 2 to and CO, transporting said H 2 and CO to a water gas shift, and adding H 2 O thereto to produce more hydrogen.

Assignees

• Saudi Arabian Oil Co

Inventors

• Hamad Esam Zaki
• Hammad Ahmad D
• Imran Hasan

Classifications

• C01B2203/0283

  containing a CO-shift step, i.e. a water gas shift step · CPC title

• C10G2/35

  with the use of another activation, e.g. radiation, vibration, electrical or electromagnetic means · CPC title

• C10G2300/4043

  Limiting CO2 emissions · CPC title

• C10L3/00

  Gaseous fuels; Natural gas; Synthetic natural gas obtained by processes not covered by subclass C10G, C10K; Liquefied petroleum gas · CPC title

• C10L1/02

  essentially based on components consisting of carbon, hydrogen, and oxygen only · CPC title