Olefin production via dry reforming and olefin synthesis in a vessel
AssigneeSaudi Arabian Oil Company
InventorsBandar Solami, Aqil Jamal, Kunho Lee
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Abstract
A system and method for producing olefin via dry reforming and olefin synthesis in the same vessel, including providing feed including methane and carbon dioxide to the vessel, converting methane and carbon dioxide in the vessel into syngas (that includes hydrogen and carbon monoxide) via dry reforming in the vessel, and cooling the syngas via a heat exchanger in the vessel. The method includes synthesizing olefin from the syngas in the vessel, wherein the olefin includes ethylene, propylene, or butene, or any combinations thereof.
Claims12
A method of producing olefin via dry reforming and olefin synthesis, the method comprising:
- providing feed comprising methane and carbon dioxide to a dry reforming section in a vessel;
- converting methane and carbon dioxide in the vessel into syngas comprising hydrogen (H2) and carbon monoxide by dry reforming via dry reforming catalyst in the dry reforming section in the vessel;
- flowing the syngas from the dry reforming section to a heat exchanger in the vessel and cooling the syngas via the heat exchanger;
- flowing the syngas from the heat exchanger to a olefin synthesis section in the vessel and synthesizing olefin from the syngas via olefin synthesis catalyst in the olefin synthesis section in the vessel, wherein the olefin comprises ethylene, propylene, or butene, or any combinations thereof;
- injecting H2 into the vessel into the syngas flowing from the dry reforming section to the heat exchanger or into the syngas in the heat exchanger, or a combination thereof, to increase a molar ratio of H2 to carbon monoxide of the syngas;
- controlling flow rate of the H2 injected via a control valve disposed along a conduit conveying the H2 for injection into the vessel;
- and
- discharging effluent from the vessel, the effluent comprising the olefin.
A method of producing olefin, comprising:
- converting methane and carbon dioxide via a dry reforming catalyst in a dry reforming section in a reactor vessel into syngas comprising hydrogen (H2) and carbon monoxide, wherein the converting comprises dry reforming via dry reforming catalyst in the dry reforming section;
- flowing the syngas from the dry reforming section through a heat exchange section in the reactor vessel to cool the syngas with a cooling medium in the heat exchange section;
- flowing the syngas as cooled from the heat exchange section to an olefin synthesis section in the reactor vessel;
- synthesizing olefin from the syngas via an olefin synthesis catalyst in the olefin synthesis section, wherein the olefin comprises ethylene, propylene, or butene, or any combinations thereof, wherein the dry reforming section and the methanol synthesis section are enclosed within the reactor vessel in an interior of the reactor vessel to inside of a vessel wall of the reactor vessel, and wherein the heat exchange section in the reactor vessel is disposed between the dry reforming section and the methanol synthesis section;
- injecting H2 into the syngas in the reactor vessel to increase a molar ratio of H2 to carbon monoxide of the syngas, wherein the H2 injected is injected into the syngas flowing from the dry reforming section to the heat exchanger or injected into the syngas in the heat exchanger, or a combination thereof;
- and
- controlling flow rate of the H2 injected via a control valve disposed along a conduit conveying the H2 for injection into the reactor vessel.
Dependencies are inferred from the claim text.