Invention Application
US20080026939A1 ZINC OXIDE-BASED SORBENTS AND PROCESSES FOR PREPARING AND USING SAME
有权
基于氧化锌的分散体及其制备和使用方法
- Patent Title: ZINC OXIDE-BASED SORBENTS AND PROCESSES FOR PREPARING AND USING SAME
- Patent Title (中): 基于氧化锌的分散体及其制备和使用方法
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Application No.: US11771396Application Date: 2007-06-29
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Publication No.: US20080026939A1Publication Date: 2008-01-31
- Inventor: Santosh Gangwal , Brian Turk , Raghubir Gupta
- Applicant: Santosh Gangwal , Brian Turk , Raghubir Gupta
- Assignee: Research Triangle Institute
- Current Assignee: Research Triangle Institute
- Main IPC: B01J20/06
- IPC: B01J20/06

Abstract:
The disclosure relates to zinc oxide-based sorbents, and processes for preparing and using them. The sorbents are preferably used to remove one or more reduced sulfur species from gas streams. The sorbents comprise an active zinc component, optionally in combination with one or more promoter components and/or one or more substantially inert components. The active zinc component is a two phase material, consisting essentially of a zinc oxide (ZnO) phase and a zinc aluminate (ZnAl2O4) phase. Each of the two phases is characterized by a relatively small crystallite size of typically less than about 500 Angstroms. Preferably the sorbents are prepared by converting a precursor mixture, comprising a precipitated zinc oxide precursor and a precipitated aluminum oxide precursor, to the two-phase, active zinc oxide containing component.
Public/Granted literature
- US07956006B2 Process for preparing zinc oxide-based sorbents Public/Granted day:2011-06-07
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