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US 8,277,525 B2Granted
High energy transport gas and method to transport same
OwnerRobert C. Daltoninventor
Life of this patent
Estimating the term…
Abstract
A high energy transport gas and a method to transport the high energy transport gas are used to increase the energy content of a pipeline and other vessels that are designed to carry natural gas under ambient conditions, in a compressed state or in a liquefied state. Methane and other gases are used as the feedstock, with methane from natural gas fields, coal beds or derived from hydrogen reacting with coal being primary energy sources. Also, this gas and method can provide an abundant source for hydrogen production, and the energy from hydrogen can be used for fuel cell applications that generate electricity and power motor vehicles. This gas and method are capable of increasing the energy capacity of current natural gas pipelines and other storage and transport vessels.
Claims16
A method to transport energy comprising the steps of:
- a) providing an input chemical species comprising:
- (i) at least one gas species containing carbon, wherein the species containing carbon is selected from the group consisting of coal, activated carbon, char, biomass, and combinations thereof, and
- (ii) a component selected from the group consisting of methane, hydrogen, water, a solid species containing carbon, and combinations thereof, and the input species having a heat of combustion equal to or less than methane;
- b) converting at least a portion of the input chemical species using a reforming process into an output chemical species that has at least one new gaseous species having a higher heat of combustion than methane, the output chemical species consisting of a chemical species selected from the group consisting of hydrogen, methane, acetylene, ethane, ethylene, propylene, and combinations thereof, wherein the total number of moles of the input chemical species is greater than the total number of moles of the output chemical species minus the number moles of hydrogen in the output chemical species, with the proviso that the output chemical species does not contain CO or CO2, and wherein the heat of combustion of carbon is maintained in the reformed species without producing carbon monoxide or carbon dioxide;
- c) optimizing the reforming process to produce hydrogen gas;
- d) separating the hydrogen gas from the output chemical species to form a high energy transport gas;
- e) recycling the hydrogen separated from the output chemical species back into the input chemical species for reforming;
- f) separating methane from the output chemical species and recycling the methane back into the input chemical species for reforming;
- and
- g) transporting the high energy transport gas by conventional transportation means to an end use,
- wherein the process is optimized to maximize total heat of combustion of the high energy transport gas.
8 more elements
A high energy transport gas derived from the steps of:
- a) providing an input chemical species comprising (i) at least one gas species containing carbon and (ii) a component selected from the group consisting of methane, hydrogen, water, a solid species containing carbon, and combinations thereof, and the input chemical species having a heat of combustion equal to or less than methane;
- b) converting at least a portion of the input chemical species flow using a reforming process into an output chemical species that has at least one new gaseous species having a higher heat of combustion than methane, the output chemical species consisting of a chemical species selected from the group consisting of hydrogen, methane, acetylene, ethane, ethylene, propylene, and combinations thereof, with the proviso that the output chemical species does not contain CO or CO2,
- c) optimizing the reforming process to produce hydrogen gas;
- d) separating the hydrogen gas from the output chemical species to form the high energy transport gas;
- e) recycling the hydrogen separated from the output chemical species back into the input chemical species for reforming;
- and
- f) separating methane from the output chemical species and recycling the methane back into the input chemical species for reforming,
- wherein the total number of moles of the input chemical species is greater than the total number of moles of the output chemical species minus the number moles of hydrogen in the output chemical species, and
- wherein the hydrogen is separated from the output chemical species prior to the high energy transport gas being transported by conventional means to an end use.
6 more elements
A high energy transport gas derived from the steps of:
- a) providing an input gas species comprising (i) a component selected from the group consisting of methane, hydrogen, water, a species containing carbon, and combinations thereof, and (ii) at least one species containing carbon, the input gas species having a heat of combustion equal to or less than methane;
- b) converting at least a portion of the input chemical species using a reforming process into an output chemical species that has at least one new gaseous species having a higher heat of combustion than methane, the output chemical species consisting of a chemical species selected from the group consisting of hydrogen, methane, acetylene, ethane, ethylene, propylene, and combinations thereof, with the proviso that the output chemical species does not contain CO or CO2;
- and
- c) optimizing the process to produce hydrogen gas,
- d) separating the hydrogen gas from the output chemical species to form the high energy transport gas;
- e) recycling the hydrogen separated from the output chemical species back into the input chemical species for reforming;
- and
- f) separating methane from the output chemical species and recycling the methane back into the input chemical species for reforming,
- wherein the total number of moles of the input chemical species is greater than the total number of moles of the output chemical species minus the number moles of hydrogen in the output chemical species,
- wherein the output chemical species has a higher heat of combustion than methane,
- wherein the high energy transport gas is optimized to maximize total heat of combustion of the high energy transport gas, and
- wherein the high energy transport gas has a heat of combustion greater than acetylene.
9 more elements
Dependencies are inferred from the claim text.