Patent · US Active

Particulate, heterogeneous solid CO2 absorbent composition, method for its preparation and use thereof

US9550147B2 · kind B2 · utility

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11Claims

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Assignee

Institutt for Energiteknikk · NO

Inventors

Johann Mastin · Stavanger, NO
Julien Meyer · Oslo, NO
Arne Raaheim · Maura, NO

Key dates

Filing date	Jul 6, 2010
Grant date	Jan 24, 2017
Priority date	—
Expiry date	Apr 4, 2034

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02P20/151
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

A particulate, heterogeneous solid CO2 absorbent composition, comprising decomposition products of Ca3Al2O6 after having been heated to a temperature between 500° C. and 925° C. in the presence of H2O and CO2 for a period of time sufficient to allow the Ca3Al2O6 to react and form the particulate, heterogeneous absorbent composition which exhibits a higher concentration of aluminum than calcium in the particle core but a higher concentration of calcium than aluminum at the particle surface. The invention also comprises a method for preparing the particulate, heterogeneous product as well as a method for utilizing the composition for separating CO2 from a process gas.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.