A device, process, and catalyst intended for desulfurization/demercaptanization/dehydration of gaseous hydrocarbonsd
AssigneeStart-Catalyst LLC
InventorsLiudmila Aleksandrovna TYURINA, Alexander Ivanovich TYURIN, Irina Gennadievna TARKHANOVA, Alexey Aleksandrovich TYURIN
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Abstract
This application is in the field of technologies for desulfurization and demercaptanization of raw gaseous hydrocarbons (including natural gas, tail gas, technological gas, etc, including gaseous media). It can be used for simultaneous dehydration and desulfurization/demercaptanization of any kind of raw gaseous hydrocarbons.
Claims18
1-17. (canceled)
A device for desulfurization, and/or demercaptanization, and/or dehydration of gaseous hydrocarbons, comprising:
- a desulfurization/demercaptanization/dehydration reactor, said reactor being loaded with a catalyst for converting hydrogen sulfide and mercaptans into a sulfur and disulfides, respectively, in an absorbent solution,
- a means for sulfur pulp solution withdrawal from the reactor to a unit for sulfur separation and absorbent regeneration,
- wherein an operating temperature, a gas pressure, and an absorbent composition are determined by gas dehydration requirements,
- wherein said device comprises at least a means for supplying into the reactor a gas to be purified and an oxygen-containing gas,
- a means for outletting the purified gas from the reactor,
- wherein the unit for sulfur separation and absorbent regeneration comprises a means for absorbent regeneration and a means for sulfur withdrawal from the unit for sulfur separation and absorbent regeneration,
- wherein the reactor and a composition of said catalyst are configured to provide a conversion of at least 99.99% of hydrogen sulfide and mercaptans into sulfur and disulfides, respectively, while at the same time achieving an absorption of water by the absorbent to a required degree of gas dehydration,
- wherein the means for absorbent regeneration provides for extraction of water from said absorbent with a later recycling of the absorbent into said desulfurization/demercaptanization/dehydration reactor.
A process of desulfurization and/or demercaptanization and/or dehydration of gaseous hydrocarbons, comprising:
- mixing one or more gaseous hydrocarbons to be purified with an oxygen-containing gas,
- pressurizing and passing through a reactor loaded with a solution of a catalyst for oxidating hydrogen sulfide and mercaptans in an absorbent that provides dehydration of said gaseous hydrocarbons,
- and maintaining a gas pressure, as determined by a desired content of water in purified gas,
- wherein the catalyst comprises mixed-ligand complexes of transition metals, and
- wherein a conversion rate of hydrogen sulfide and mercaptans into sulfur and disulfides is at least 99.99%.
A catalyst for desulfurization/demercaptanization of gaseous hydrocarbons, comprising:
- a 0.0001%-400% solution of a mixture of ferric and/or cupric chlorides with an addition of one or more solvating agents.
Dependencies are inferred from the claim text.