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US 12,303,842 B2Granted
Zeolite membrane complex, separation apparatus, separation method and method of producing zeolite membrane complex
AssigneeNGK Insulators, Ltd.
InventorKenichi Noda
Life of this patent
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Abstract
A zeolite membrane complex includes a porous support, and a zeolite membrane formed on the support and composed of an 8-membered ring zeolite. The zeolite membrane is selectively permeable to hydrogen sulfide rather than nitrogen for a gas containing nitrogen and hydrogen sulfide.
Claims14
A zeolite membrane complex, comprising:
- a porous support;
- and
- a zeolite membrane provided on said support, said zeolite membrane being composed of an 8-membered ring zeolite, wherein
- said zeolite membrane contains protons,
- said zeolite membrane is selectively permeable to hydrogen sulfide rather than nitrogen for a gas containing nitrogen and hydrogen sulfide, and
- in temperature-programmed desorption of ammonia measurement for said zeolite membrane, an amount of desorbed ammonia in a peak temperature range in which said amount of desorbed ammonia is maximum is 1 μmol/cm3 or more.
3 more elements
Dependencies are inferred from the claim text.