Abstract: A polyol resin blend suitable for rigid foam applications having one or more active hydroxyl compounds, a silicone surfactant, a halogenated olefinic blowing agent, and an amine catalyst. The polyol resin blend can include from about 0.3% to about 7% by weight amine catalyst. The polyol resin blend may be used to form a polyurethane and/or polyisocyanurate foam.

Abstract: A catalyst for use in a rigid foaming system including an isocyanate and a halogenated olefinic blowing agent is described and a process for creating a rigid foaming system thereof. The catalyst can include a morpholine ring and a central N-alkyl group.

Abstract: An absorbent composition that is useful in the selective removal of hydrogen sulfide relative to carbon dioxide from gaseous mixtures that comprise both hydrogen sulfide and carbon dioxide and the use thereof. The absorbent composition includes an amine mixture of an amination reaction product of tert-butylamine with a polydispersed polyethylene glycol (PEG) mixture having an average molecular weight within a certain specified range of molecular weights. The amination reaction product may also comprise a first sterically hindered amine and a second sterically hindered amine. The absorbent composition, preferably, includes an organic co-solvent, such as a sulfone compound. A method is also provided for improving the operation of certain gas absorption processes by utilizing the absorbent composition.

Abstract: Amine compositions comprising sterically hindered amines and associated methods are provided. In some embodiments, amine compositions of the present disclosure may be useful for selective removal of H2S from an acidic gas stream.

Abstract: Amine compositions comprising sterically hindered amines and associated methods are provided. In some embodiments, amine compositions of the present disclosure may be useful for selective removal of H2S from an acidic gas stream.

Abstract: Amine compositions comprising sterically hindered amines and associated methods are provided. In some embodiments, amine compositions of the present disclosure may be useful for selective removal of H2S from an acidic gas stream.

Abstract: An amine according to the invention has a formula (CH3)2NCH2CH2OCH2CH2CH2N(R1)(R2) wherein R1 is selected from (CH3)2NCH2CH2OCH2CH2CH2— and R2 is selected from the group consisting of H—, CH3(CnH2n)—, HO(CmH2m)— and (CH3)2NCH2CH2OCH2CH2CH2—, n being an integer in the range of 0 to 5, m being an integer in the range of 2 to 4.

Abstract: Amine compositions comprising sterically hindered amines and associated methods are provided. In some embodiments, amine compositions of the present disclosure may be useful for selective removal of H2S from an acidic gas stream.

Abstract: Amine compositions comprising sterically hindered amines and associated methods are provided. In some embodiments, amine compositions of the present disclosure may be useful for selective removal of H2S from an acidic gas stream.

Abstract: An absorbent composition that is useful in the selective removal of hydrogen sulfide relative to carbon dioxide from gaseous mixtures that comprise both hydrogen sulfide and carbon dioxide and the use thereof. The absorbent composition includes an amine mixture of an amination reaction product of tert-butylamine with a polydispersed polyethylene glycol (PEG) mixture having an average molecular weight within a certain specified range of molecular weights. The amination reaction product may also comprise a first sterically hindered amine and a second sterically hindered amine. The absorbent composition, preferably, includes an organic co-solvent, such as a sulfone compound. A method is also provided for improving the operation of certain gas absorption processes by utilizing the absorbent composition.

Abstract: An amine according to the invention has a formula (CH3)2NCH2CH2OCH2CH2CH2N(R1)(R2) wherein R1 is selected from (CH3)2NCH2CH2OCH2CH2CH2— and R2 is selected from the group consisting of H—, CH3(CnH2n)—, HO(CmH2m)— and (CH3)2NCH2CH2OCH2CH2CH2—, n being an integer in the range of 0 to 5, m being an integer in the range of 2 to 4.

Abstract: A high temperature selective absorption process for treating a gas stream having concentrations of both hydrogen sulfide and carbon dioxide to yield a treated gas stream having a reduced hydrogen sulfide concentration. The high temperature selective absorption process uniquely utilizes a novel absorbent composition which enables the processing of the gas stream under difficult absorption conditions and provides for other features of the inventive absorption process.

Abstract: An absorbent composition that is useful in the selective removal of hydrogen sulfide relative to carbon dioxide from gaseous mixtures that comprise both hydrogen sulfide and carbon dioxide and the use thereof. The absorbent composition includes an amine mixture of an amination reaction product of tert-butylamine with a polydispersed polyethylene glycol (PEG) mixture having an average molecular weight within a certain specified range of molecular weights. The amination reaction product may also comprise a first sterically hindered amine and a second sterically hindered amine. The absorbent composition, preferably, includes an organic co-solvent, such as a sulfone compound. A method is also provided for improving the operation of certain gas absorption processes by utilizing the absorbent composition.

Abstract: An absorbent composition that is useful in the selective removal of hydrogen sulfide relative to carbon dioxide from gaseous mixtures that comprise both hydrogen sulfide and carbon dioxide and the use thereof. The absorbent composition includes an aqueous solvent that comprises an amine mixture, comprising an amination reaction product of tert-butylamine and a polydispersed polyethylene glycol mixture, and water with a concentration of an added strong acid to inhibit phase separation of the aqueous solvent. The operation of certain gas absorption processes can be improved by the use of the absorbent composition.

Abstract: The present disclosure provides a scrubbing composition containing an aqueous solution of 2-(3-aminopropoxy)ethan-1-ol. The scrubbing composition is especially suited for use in removing acid gases, such as carbon dioxide and hydrogen sulfide, from gas streams.

Abstract: Amine compositions comprising sterically hindered amines and associated methods are provided. In some embodiments, amine compositions of the present disclosure may be useful for selective removal of H2S from an acidic gas stream.

Abstract: The present disclosure provides a scrubbing composition containing an aqueous solution of 2-(3-aminopropoxy)ethan-1-ol. The scrubbing composition is especially suited for use in removing acid gases, such as carbon dioxide and hydrogen sulfide, from gas streams.