NMR study of the composition of aqueous 2-aminoethanol solution used for absorption of carbon dioxide from fuel gases
作者:V. P. Talzi
DOI:10.1134/s1070428016070010
日期:2016.7
accepted paths of thermal decomposition of the absorbent in the reaction with carbon dioxide, but the main path is non-oxidative decomposition of 2-aminoethanol into ammonia and ethylene oxide. Splitting of the NMR signals of carbamate anion formed by reaction of 2-aminoethanol with carbon dioxide has been rationalized by specific structure of the anion due to intramolecular hydrogen bonding.
工业上用于吸收天然气燃烧产生的二氧化碳的2-氨基乙醇水溶液的组成已通过1 H和13 C NMR光谱法确定。吸收过程不涉及吸收剂在与二氧化碳反应中热分解的公认途径,但主要途径是将2-氨基乙醇非氧化分解为氨和环氧乙烷。由2-氨基乙醇与二氧化碳反应形成的氨基甲酸酯阴离子的NMR信号的分裂已通过阴离子的特定结构而合理化,这归因于分子内氢键。
Process for absorption of sulfur compounds from fluids using certain piperidines, piperazines, or anhydrides of monocarboxylic amino acids
申请人:THE DOW CHEMICAL COMPANY
公开号:EP0471592A2
公开(公告)日:1992-02-19
Sulfur dioxide is removed from a fluid containing SO2 by employing as an absorbent for the SO2 an aqueous solution of a compound represented by Formulae I, II or III :
wherein each Y is independently -(CR22)- or -(CR2)= ; each R1, R2, R5 or R6 is independently hydrogen, an alkyl group ; an hydroxyalkyl group ; an aldehyde group ; a carboxylic acid group or salt thereof ; or an alkyl group containing at least one carboxylic acid ester, a carboxylic acid or salt thereof, ether, aldehyde, ketone, or sulfoxide group ; wherein at least one of R1 and R2 and at least one of R5 and R6 is a carbonyl-containing group ; each R3 or R4 is independently hydrogen ; an alkyl group ; a hydroxyalkyl group ; an aldehyde group ; a carboxylic acid or salt group ; or an alkyl, aryl, or aralkyl group containing at least one carboxylic ester, a carboxylic acid or salt, ether, aldehyde, ketones or sulfoxide group. The absorbent solution preferably can be thermally regenerated by heating to remove SO2.
HYBRID IMMOLATIVE CELL-PENETRATING COMPLEXES FOR NUCLEIC ACID DELIVERY
申请人:THE BOARD OF TRUSTEES OF THE LELAND STANFORD JUNIOR UNIVERSITY
公开号:US20220088163A1
公开(公告)日:2022-03-24
There are provided herein, inter alia, complexes, compositions and methods for the delivery of nucleic acid into a cell in vivo. The complexes, compositions and methods may facilitate complexation, protection, delivery and release of oligonucleotides and polyanionic cargos into target cells, tissues, and organs both in vitro and in vivo.