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US 11,530,173 B2Granted
Selective olefins production from light paraffins
AssigneeExxonMobil Technology and Engineering Company
InventorsMohsen N. Harandi, Randall J. Meyer
Life of this patent
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Abstract
A method may include: contacting a light paraffin feed comprising ethane, propane, butane, naphtha or combinations thereof with a restrained catalyst in a reactor; converting at least a portion of the light paraffin feed to ethylene, propylene, or combinations thereof with an olefin selectivity of at least 70 wt. % and methane selectivity of less than 15 wt. %; and withdrawing a product stream from the reactor.
Claims8
A method comprising:
- contacting a light paraffin feed comprising ethane, propane, butane or combinations thereof with a restrained catalyst in a reactor;
- converting at least a portion of ethane, propane, butane or combination thereof to ethylene, propylene, or combinations thereof with an olefin selectivity of at least 70 wt. % and methane selectivity of less than 15 wt. %;
- and
- withdrawing a product stream from the reactor;
- wherein the restrained catalyst comprises a zeolite, wherein the zeolite has been steamed to reduce catalytic activity of the zeolite;
- wherein the light paraffin feed contains greater than 80% by weight ethane, propane, or combinations thereof;
- wherein the zeolite is selected from the group consisting of ZSM-5, ZSM-11, ZSM-12, ZSM-22, ZSM-23, ZSM-35, ZSM-38, ZSM-48, ZSM-50, ZSM-57, ZSM-58, MCM-22, MCM-35, MCM-49, MCM-57, SUZ-4, COK-5, ITQ-39, ferrierite, erionite, silica-aluminum phosphate (SAPO), BEA, MOR, FAU, and combinations thereof.
4 more elements
Dependencies are inferred from the claim text.