-
公开(公告)号：US4759866A
公开(公告)日：1988-07-26
申请号：US93734
申请日：1987-09-08
CPC分类号： B01D53/1493 , B01D53/526
摘要： Disclosed are primary sterically hindered aminoacids for use as promoters for alkali metal salts in acid gas scrubbing. The primary sterically hindered aminoacid is selected from 1-amino-cyclopentane carboxylic acid and those represented by the formula: ##STR1## where R.sub.1 and R.sub.2 are independently selected from CH.sub.3, C.sub.2 H.sub.5, and C.sub.3 H.sub.7 ; R.sub.3 and R.sub.4 are independently selected from hydrogen and CH.sub.3 : and n is 0, 2, or 3.
摘要翻译： 公开了用作酸性气体洗涤中的碱金属盐的促进剂的主要空间位阻氨基酸。 主要的位阻氨基酸选自1-氨基环戊烷羧酸和由下式表示的那些：其中R 1和R 2独立地选自CH 3，C 2 H 5和C 3 H 7; R 3和R 4独立地选自氢和CH 3：并且n是0,1或3。
-
2.发明授权Process for converting cyclic urea to corresponding diamine in a gas treating system 失效在气体处理系统中将环脲转化为相应的二胺的方法
公开(公告)号：US4282193A
公开(公告)日：1981-08-04
申请号：US122588
申请日：1980-02-19
CPC分类号： B01D53/1425 , B01D53/1456 , B01D53/1493 , B01D53/526 , Y02C10/06
摘要： Acidic gases such as carbon dioxide are removed from a gaseous mixture including the acidic component by contacting the gaseous mixture in a scrubbing system with an acid absorbing solution comprising a basic alkali metal compound and an activator, during which process at least a portion of the activator is converted to cyclic urea. At least a portion of the scrubbing solution is transferred to a thermal conversion zone wherein at least a portion of the cyclic urea is converted back to the activator afterwhich the scrubbing solution is returned to the scrubbing system from the thermal conversion zone.
摘要翻译： 通过使洗涤系统中的气体混合物与包含碱性碱金属化合物和活化剂的酸吸收溶液接触，从包括酸性组分的气体混合物中除去酸性气体如二氧化碳，在该过程中，至少一部分活化剂 转化为环状脲。 洗涤溶液的至少一部分被转移到热转化区，其中至少一部分环状尿素转化回活化剂，之后洗涤溶液从热转化区返回到洗涤系统。
-
公开(公告)号：US4919904A
公开(公告)日：1990-04-24
申请号：US179995
申请日：1988-04-11
CPC分类号： B01D53/1493 , B01D53/526 , Y02C10/06
摘要： Disclosed are primary sterically hindered aminoacids for use as promoters for alkali metal salts in acid gas scrubbing. The primary sterically hindered aminoacid is selected from 1-amino-cyclopentane carboxylic acid and those represented by the formula: ##STR1## where R.sub.1 and R.sub.2 are independently selected from CH.sub.3, C.sub.2 H.sub.5, and C.sub.3 H.sub.7 ; R.sub.3 and R.sub.4 are independently selected from hydrogen and CH.sub.3 ; and n is 0, 2, or 3.
摘要翻译： 公开了用作酸性气体洗涤中的碱金属盐的促进剂的主要空间位阻氨基酸。 主要的位阻氨基酸选自1-氨基环戊烷羧酸和由下式表示的那些：其中R 1和R 2独立地选自CH 3，C 2 H 5和C 3 H 7; R3和R4独立地选自氢和CH3; n为0,2或3。
-
4.发明授权Method of removing carbon dioxide from gases utilizing an alkaline absorption solution containing a cyclic urea anti-foaming agent 失效使用含有环状尿素消泡剂的碱性吸收溶液从气体中除去二氧化碳的方法
公开(公告)号：US4183903A
公开(公告)日：1980-01-15
申请号：US930222
申请日：1978-08-02
CPC分类号： B01D53/1493 , Y02C10/06
摘要： Antifoaming agents for use in acid gas scrubbing processes comprising 1-secondary or 1-tertiaryalkyl- or 1-cycloalkyl-hexahydro-2-pyrimidinones and 1-secondary or 1-tertiary alkyl- or 1-cycloaklyl-2-imidazolidinones are disclosed.
摘要翻译： 公开了用于酸性气体洗涤方法的消泡剂，其包含1-仲或1-叔烷基 - 或1-环烷基 - 六氢-2-嘧啶酮和1-仲或1-叔烷基 - 或1-环亚烷基-2-咪唑啉酮。
-
5.发明授权1-Secondary or 1-tertiary alkyl or cycloalkyl-hexahydro-2-pyrimidinones and 1-secondary or 1-tertiary alkyl or 1-cycloalkyl-2-imidazolidinones and their use as antifoaming agents 失效1-仲烷基或1-叔烷基或环烷基 - 六氢-2-嘧啶酮和1-仲或1-叔烷基或1-环烷基-2-咪唑啉酮及其作为消泡剂的用途
公开(公告)号：US4343716A
公开(公告)日：1982-08-10
申请号：US51873
申请日：1979-06-25
CPC分类号： B01D53/1493 , Y02C10/06
摘要： Antifoaming agents for use in acid gas scrubbing processes comprising 1-secondary or 1-tertiary alkyl- or 1-cycloalkyl-hexahydro-2-pyrimidinones and 1-secondary or 1-tertiary alkyl- or 1-cycloalkyl-2-imidazolidinones are disclosed.
摘要翻译： 公开了用于酸性气体洗涤方法的消泡剂，其包含1-仲或1-叔烷基 - 或1-环烷基 - 六氢-2-嘧啶酮和1-仲或1-叔烷基 - 或1-环烷基-2-咪唑啉酮。
-
公开(公告)号：US5602279A
公开(公告)日：1997-02-11
申请号：US228535
申请日：1994-04-15
IPC分类号： B01D53/14 , B01D53/52 , C07C227/02 , C07C51/295
CPC分类号： B01D53/526 , B01D53/1493 , C07C227/02
摘要： A gas treating composition prepared by reacting 2-amino-2-methyl-1-propanol with KOH, diluting with water and adding K.sub.2 CO.sub.3 and a vanadium corrosion inhibitor.
摘要翻译： 将2-氨基-2-甲基-1-丙醇与KOH反应制备的气体处理组合物，用水稀释并加入K 2 CO 3和钒缓蚀剂。
-
公开(公告)号：US5302771A
公开(公告)日：1994-04-12
申请号：US15269
申请日：1993-02-08
CPC分类号： C07C7/1485 , C08F10/06
摘要： The present invention is directed to a process for removing impurities from hydrocarbon streams, preferably light ends, such as propylene and ethylene, which is preferably in the liquid phase, by contacting the hydrocarbon stream containing an initial amount of an impurity with a chemical adsorbent which is composed of a modified alumina having a surface area within the range of about 10 m.sup.2 /g to about 300 m.sup.2 /g and a pore volume within the range of about 0.1 mL/g to about 1 mL/g under contacting conditions effective to result in a purified hydrocarbon stream containing a reduced amount of impurities, i.e., less than about 0.5% relative to the initial amount of the acid impurity present in the hydrocarbon stream, and more preferably within the 10 ppb range.
摘要翻译： 本发明涉及通过使含有初始量的杂质的烃流与化学吸附剂接触来从烃流，优选轻馏分如丙烯和乙烯中除去杂质的方法，该方法优选为液相 由具有约10m 2 / g至约300m 2 / g范围内的表面积和约0.1mL / g至约1mL / g范围内的孔体积的改性氧化铝组成，所述接触条件有效地得到结果 在含有减少量杂质的纯化烃流中，即相对于烃流中存在的酸杂质的初始量小于约0.5％，更优选在10ppb范围内。
-
-
-
-
-
-
搜索结果
7 条记录 (耗时 0.012 秒)
