Rendering petroleum oil as an environmentally carbon dioxide neutral source material for fuels, derived products and as a regenerative carbon source
First Claim
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1. A method for rendering petroleum oil as an essentially environmentally carbon dioxide-neutral fuel and regenerative carbon source for producing methanol or dimethyl ether, which comprises:
- subjecting petroleum oil to refining or combustion conditions sufficient to produce carbon dioxide;
capturing and purifying the produced carbon dioxide; and
combining the purified carbon dioxide with water and a suitable light hydrocarbon fraction having the formulation of CnH(2n+2), wherein n=1-4, in a molar ratio of 3;
(3n−
1);
1 as 3CnH(2n+2)+(3n−
1)H2O+CO2 to conduct a bi-reforming reaction by;
conducting steam reforming of the light hydrocarbon fraction with water to form carbon monoxide and hydrogen as follows;
(3−
1/n)[CnH(2n+2)+2nH2O→
nCO+(2n+1)H2];
conducting dry reforming of the light hydrocarbon fraction with carbon dioxide to form carbon monoxide and hydrogen as follows;
1/n[CnH(2n+2)+nCO2→
2nCO+(n+1)H2];
combining effluents including carbon monoxide and hydrogen from the steam and dry reforming reactions without separation of components of the reforming reactions or their effluents to produce a mixture of hydrogen and carbon monoxide having a molar ratio of hydrogen to carbon monoxide that is about 2;
1 to 2.1;
1; and
converting the molar mixture of hydrogen and carbon monoxide under conditions sufficient to exclusively form methanol, as follows;
(3n+1)CO +(6n+2)H2→
(3n+1)CH3OH,so that the carbon dioxide generated from the petroleum oil is not introduced into the atmosphere, thus rendering the petroleum oil as an essentially environmentally carbon dioxide-neutral fuel and regenerative carbon source.
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Abstract
The invention provides a method for rendering petroleum oil as an essentially environmentally carbon dioxide-neutral fuel and source material. Carbon dioxide produced from petroleum oil combustion is captured, purified, combined with steam and light hydrocarbon fractions, or with hydrogen, and reacted under reaction conditions sufficient to form methanol and/or dimethyl ether, which can be used as fuel or feedstock for derived synthetic hydrocarbons and products.
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Citations
22 Claims
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1. A method for rendering petroleum oil as an essentially environmentally carbon dioxide-neutral fuel and regenerative carbon source for producing methanol or dimethyl ether, which comprises:
- subjecting petroleum oil to refining or combustion conditions sufficient to produce carbon dioxide;
capturing and purifying the produced carbon dioxide; and
combining the purified carbon dioxide with water and a suitable light hydrocarbon fraction having the formulation of CnH(2n+2), wherein n=1-4, in a molar ratio of 3;
(3n−
1);
1 as 3CnH(2n+2)+(3n−
1)H2O+CO2 to conduct a bi-reforming reaction by;conducting steam reforming of the light hydrocarbon fraction with water to form carbon monoxide and hydrogen as follows;
(3−
1/n)[CnH(2n+2)+2nH2O→
nCO+(2n+1)H2];conducting dry reforming of the light hydrocarbon fraction with carbon dioxide to form carbon monoxide and hydrogen as follows;
1/n[CnH(2n+2)+nCO2→
2nCO+(n+1)H2];combining effluents including carbon monoxide and hydrogen from the steam and dry reforming reactions without separation of components of the reforming reactions or their effluents to produce a mixture of hydrogen and carbon monoxide having a molar ratio of hydrogen to carbon monoxide that is about 2;
1 to 2.1;
1; andconverting the molar mixture of hydrogen and carbon monoxide under conditions sufficient to exclusively form methanol, as follows;
(3n+1)CO +(6n+2)H2→
(3n+1)CH3OH,so that the carbon dioxide generated from the petroleum oil is not introduced into the atmosphere, thus rendering the petroleum oil as an essentially environmentally carbon dioxide-neutral fuel and regenerative carbon source. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
- subjecting petroleum oil to refining or combustion conditions sufficient to produce carbon dioxide;
Specification