Processes and apparatuses for converting carbon dioxide into olefins
AssigneeUop LLC
InventorsAnil Nivrutti Pachpande, Jan De Ren, Yogesh Kumar Gupta
Life of this patent
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Abstract
Processes and apparatuses for converting carbon dioxide into hydrocarbons. Carbon dioxide and coke are reacted in a reaction zone to produce carbon monoxide. The Carbon monoxide and a hydrogen stream are reacted to produce methanol. The methanol is reacted in reaction zone to produce ethylene and propylene. The hydrogen and the oxygen can be produced in an electrolysis zone that separates water into hydrogen and oxygen.
Claims16
A process for converting carbon dioxide, the process comprising:
- reacting, in a first reaction zone having a reactor and a regeneration vessel, operated under suitable conditions, carbon dioxide with coke to produce carbon monoxide;
- circulating a heat supply media between the reactor and the regeneration vessel;
- generating in an electrolysis zone operated under suitable conditions hydrogen from water, and,
- reacting, in a second reaction zone operated under suitable conditions, the carbon monoxide from the first reaction zone with the hydrogen from the electrolysis zone to produce methanol.
A process for converting carbon dioxide to hydrocarbons, the process comprising:
- passing a coke and a stream comprising carbon dioxide into a first reaction zone, the first reaction zone operated under suitable conditions to produce carbon monoxide, wherein an effluent from the first reaction zone comprises the carbon monoxide;
- passing a stream comprising water to an electrolysis zone, the electrolysis zone receiving electrical energy and being configured to provide a stream comprising hydrogen;
- and,
- passing an effluent stream from the first reaction zone and the stream comprising hydrogen to a second reaction zone, the second reaction zone operated under suitable conditions to produce methanol, wherein an effluent from the second reaction zone comprises the methanol;
- converting, in a third reaction zone operated under suitable conditions, the methanol from the second reaction zone into light olefins, wherein the third reaction zone further provides a water stream;
- passing the water stream to the electrolysis zone.
A system for converting carbon dioxide into hydrocarbons, the system comprising:
- a first reaction zone, comprising a reaction vessel and a regeneration vessel, configured to receive a coke and a stream comprising carbon dioxide and, when operated under suitable conditions, to produce an effluent comprising carbon monoxide;
- an electrolysis zone configured to receive a stream comprising water and electrical energy and configured to provide a stream comprising hydrogen;
- and,
- a second reaction zone configured to receive the effluent from the first reaction zone and the stream comprising hydrogen and, when operated under suitable conditions, to produce methanol, wherein an effluent from the second reaction zone comprises the methanol,
- wherein a heat supply media is circulated between the reaction vessel and the regeneration vessel.
Dependencies are inferred from the claim text.