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    • 5. 发明申请
    • REMOVAL OF CARBON DIOXIDE FROM COMBUSTION EXHAUST GASES
    • 从燃烧排气中去除二氧化碳
    • US20090320682A1
    • 2009-12-31
    • US12439077
    • 2007-08-27
    • Rupert WagnerUte LichtfersVolker Schuda
    • Rupert WagnerUte LichtfersVolker Schuda
    • B01D53/14C09K3/00B01D19/00
    • B01D53/1493B01D53/1475Y02A50/2342Y02C10/04Y02C10/06
    • The invention relates to an absorbent, comprising an aqueous solution (A) of at least one amino acid salt of the formula (I), wherein R1 and R2 independently from each other represent alkyl or hydroxyalkyl, R is hydrogen, alkyl or hydroxyalkyl, or a group R together with R1 is alkylene, M is an alkali metal, and n an integer from 1 to 6, and (B) of at least one primary alkanolamine, which is substantially free of inorganic alkaline salts. The absorbent is used in a method for removing carbon dioxide from a gas flow, particularly combustion exhaust gases. Preferred amino acid salts (A) are N,N-dimethylamino acetic acid potassium salt, N,N-diethylamino acetic acid potassium salt and N-ethyl-N-dimethylamino acetic acid-potassium salt. Preferred alkanolamines (B) are 2-aminoethanol, 3-aminopropanol, 4-aminobutanol, 2-aminobutanol, 5-aminopentanol, 2-aminopentanol and 2-(2-aminoethoxy)ethanol.
    • 本发明涉及一种吸收剂,其包含至少一种式(I)的氨基酸盐的水溶液(A),其中R1和R2彼此独立地表示烷基或羟烷基,R是氢,烷基或羟烷基,或 基团R与R 1一起为亚烷基,M为碱金属,n为1至6的整数,和(B)至少一种基本上不含无机碱性盐的伯烷醇胺。 吸收剂用于从气流,特别是燃烧废气中除去二氧化碳的方法。 优选的氨基酸盐(A)是N,N-二甲基氨基乙酸钾盐,N,N-二乙基氨基乙酸钾盐和N-乙基-N-二甲基氨基乙酸钾盐。 优选的链烷醇胺(B)是2-氨基乙醇,3-氨基丙醇,4-氨基丁醇,2-氨基丁醇,5-氨基戊醇,2-氨基戊醇和2-(2-氨基乙氧基)乙醇。
    • 6. 发明申请
    • REMOVAL OF CARBON DIOXIDE FROM COMBUSION EXHAUST GASES
    • 从燃烧排气中去除二氧化碳
    • US20120230896A1
    • 2012-09-13
    • US13475330
    • 2012-05-18
    • Rupert WagnerUte LichtfersVolker Schuda
    • Rupert WagnerUte LichtfersVolker Schuda
    • B01D53/62
    • B01D53/1493B01D53/1475Y02A50/2342Y02C10/04Y02C10/06
    • The invention relates to an absorbent, comprising an aqueous solution (A) of at least one amino acid salt of the formula (I), wherein R1 and R2 independently from each other represent alkyl or hydroxyalkyl, R is hydrogen, alkyl or hydroxyalkyl, or a group R together with R1 is alkylene, M is an alkali metal, and n an integer from 1 to 6, and (B) of at least one primary alkanolamine, which is substantially free of inorganic alkaline salts. The absorbent is used in a method for removing carbon dioxide from a gas flow, particularly combustion exhaust gases. Preferred amino acid salts (A) are N,N-dimethylamino acetic acid potassium salt, N,N-diethylamino acetic acid potassium salt and N-ethyl-N-methylamino acetic acid-potassium salt. Preferred alkanolamines (B) are 2-aminoethanol, 3-aminopropanol, 4-aminobutanol, 2-aminobutanol, 5-aminopentanol, 2-aminopentanol and 2-(2-aminoethoxy)ethanol.
    • 本发明涉及一种吸收剂,其包含至少一种式(I)的氨基酸盐的水溶液(A),其中R1和R2彼此独立地表示烷基或羟烷基,R是氢,烷基或羟烷基,或 基团R与R 1一起为亚烷基,M为碱金属,n为1至6的整数,和(B)至少一种基本上不含无机碱性盐的伯烷醇胺。 吸收剂用于从气流,特别是燃烧废气中除去二氧化碳的方法。 优选的氨基酸盐(A)是N,N-二甲基氨基乙酸钾盐,N,N-二乙基氨基乙酸钾盐和N-乙基-N-甲基氨基乙酸钾盐。 优选的链烷醇胺(B)是2-氨基乙醇,3-氨基丙醇,4-氨基丁醇,2-氨基丁醇,5-氨基戊醇,2-氨基戊醇和2-(2-氨基乙氧基)乙醇。
    • 7. 发明申请
    • APPLICATION OF COIL TUBE EVAPORATORS FOR THE PRODUCTION OF POLYAMIDES
    • 用于生产聚氨酯的卷管蒸发器的应用
    • US20100317810A1
    • 2010-12-16
    • US12446274
    • 2007-10-19
    • Robert WeissJens Becker
    • Robert WeissJens Becker
    • C08F2/01
    • C08G69/16C08G69/46
    • Helical tube evaporators are used to concentrate aqueous extract solutions from the extraction of polyamides based on polyamide 6.A process for preparing polyamides based on polyamide 6 comprises the stages of b) monophasic or biphasic reaction of aqueous extract solutions from the extraction of polyamides based on polyamide 6, which may be enriched with caprolactam, aminocapronitrile, aminocaproic acid or mixtures thereof, in a prereactor at pressures in the range from 5 to 40 bar and temperatures in the range from 150 to 300° C., the gaseous phase formed being removable from the liquid phase in the case of the biphasic reaction, c) discharge of the reaction mixture from stage b) through a helical tube evaporator at a temperature in the range from 220 to 300° C. with pressure reduction to about atmospheric pressure and removal of a gaseous phase to obtain a liquid phase, d) further reaction of the liquid phase from stage c) at temperatures in the range from 240 to 300° C. and pressures in the range from atmospheric pressure to 2 bar with removal of a gaseous phase.
    • 螺旋管蒸发器用于从基于聚酰胺6的聚酰胺的萃取中浓缩水提取物溶液。基于聚酰胺6制备聚酰胺的方法包括以下阶段:b)基于聚酰胺萃取的水提取物溶液的单相或双相反应 聚酰胺6,其可以在预反应器中在己烷内酰胺,氨基己腈,氨基己酸或其混合物中富集,其压力范围为5至40巴,温度范围为150-300℃,形成的气相可除去 在两相反应的情况下,从液相中,c)将反应混合物从阶段b)通过螺旋管蒸发器在220-300℃的温度下排出,同时减压至约大气压并除去 的气相以获得液相,d)液相从步骤c)在240-300℃的温度范围内进一步反应, 在大气压至2巴的范围内,除去气相。