removal sorbent composition with high chemical stability during multiple cycles

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United States of America Patent

PATENT NO 9138683
SERIAL NO

14297848

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Abstract

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Disclosed herein is a clay-alkali-amine CO2 sorbent composition prepared by integrating a clay substrate, basic alkali salt, and amine liquid. The basic alkali salt is present relative to the clay substrate in a weight ratio of from about 1 part to about 50 parts per 100 parts of the clay substrate. The amine liquid is present relative to a clay-alkali combination in a weight ratio of from about 1 part to about 10 parts per 10 parts of the clay-alkali combination. The clay-alkali-amine C02 sorbent is particularly advantageous for low temperature CO2 removal cycles in a gas stream having a C02 concentration less than around 2000 ppm and an oxygen concentration around 21%, such as air.

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Patent Owner(s)

  • THE UNITED STATES OF AMERICA AS REPRESENTED BY THE UNITED STATES DEPARTMENT OF ENERGY

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Rosencwaig, Shira Newton, US 5 24
Siriwardane, Ranjani V Morgantown, US 21 157

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