1. 2 3 4 5 1. direct manufacture from methane (natural gas) without syn-gas, chemical recycling of...
Post on 20-Dec-2015
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METHANOL AS FUEL
(A) IN INTERNAL COMBUSTION ENGINES
(B) IN DIRECT METHANOL FUEL CELL
CH3OH
(C) AS DIMETHYL ETHER - DIESEL FUEL
HOUSEHOLD FUEL
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CO2atmospheric CH2O + HCO2H
CH4natural sources
CH3OH
Energy Storage
Fuels
reduction oxidation
SyntheticHydrocarbons
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Chemical CO2 recycling to methanol and synthetic hydrocarbons production
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1. Direct manufacture from methane (natural gas) without syn-gas, chemical recycling of carbon dioxide of industrial exhausts and eventually of the atmosphere to methanol using all energy sources (alternatives and atomic) and water as the hydrogen source
2. Convenient and safe energy storage & Transportation (Compared to the Hydrogen Economy)
3. Use of methanol and/or dimethyl ether as transportation fuel (internal combustion engines, fuel cells) substitute for natural gas
4. Assured source even beyond the era of readily available oil and gas for present and future industrial uses
5. Conversion to ethylene and/or propylene and subsequent production of synthetic hydrocarbons, their products and materials
6. The methanol economy can free mankind from dependence on diminishing natural fossil fuels. At the same time recycling excess CO2 from the atmosphere will mitigate man made effects of global warming.
The "Methanol Economy"®
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Pt-C
3H2O
3OH-
Anodic Reaction:
Electrooxidation of Methanol
Overall Reaction:
CO2 + 3H2O
Cathodic Reaction:
CH3OH + H2OPt-Ru (1:1)-C
CO2 + 6 H+ + 6 e-
3/2O2 + 3 H+ + 6 e-
CH3OH + 3/2O2 + H2O
3OH- + 3 H+
Eo= 0.006 V
Eo= 1.22 V
Ecell = 1.214 VTheoretical
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SolarEnergy
SolarArray
o
o
oo
aqueous CH3OHor HCOOH + O2
CO2 + H2O
ElectrochemicalSyntheticConverter
Liquid-FeedOrganic Fuel Cell
CO2 + 2 H2O CH3OH + 3/2 O2
or CO2 + 2 H2O HCOOH + O2
Overall Reactions
Standard Reduction Potentials Eo vs SHE
CO2 + 2H + 2e HCOOH - 0.11 V
CO2 + 4H + 4e CH2O + H2O - 0.028 V
CO2 + 6H + 6e CH3OH + H2O + 0.031 V
Regenerative Fuel Cell System
CO2 HCOOH HCOH CH3OH
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