Organo-amine acid gas adsorption-desorption polymers, processes for preparing same, and uses thereof

摘要

An adsorption-desorption material, in particular, crosslinked organo-amine polymeric materials having an Mw from about 500 to about 1×106, a total pore volume from about 0.2 cc/g to about 2.0 cc/g, and an adsorption capacity of at least about 0.2 millimoles adsorbed CO2 per gram of adsorption-desorption material, and linear organo-amine polymeric materials having an Mw from about 160 to about 1×106, a total pore volume from about 0.2 cc/g to about 2.0 cc/g, and an adsorption capacity of at least about 0.2 millimoles adsorbed CO2 per gram of adsorption-desorption material. This disclosure also relates to processes for preparing the crosslinked and linear organo-amine materials, as well as to selective removal of CO2 and/or other acid gases from a gaseous stream using the adsorption-desorption materials.

主权项

1. An acid gas adsorption-desorption material comprising a crosslinked organo-amine material having a weight average molecular weight of from about 500 to about 1×106, a total pore volume of from about 0.2 cubic centimeters per gram (cc/g) to about 2.0 cc/g, and an adsorption capacity of at least about 0.2 millimoles of CO2 adsorbed per gram of adsorption-desorption material, or mixtures thereof; wherein said crosslinked organo-amine material has a formula selected from:
[(CH2CH2NH)x(R)(NHCH2CH2)y]n wherein x is an integer greater than about 1.0, y is an integer greater than about 1.0, n is an integer equal to or greater than about 1.0, the CH2CH2NH and NHCH2CH2 groups can be linear or branched; wherein R is comprised of at least one aryl moiety.