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公开(公告)号:US4727214A
公开(公告)日:1988-02-23
申请号:US8728
申请日:1987-01-30
CPC分类号: C07C1/24 , C07C2529/06 , C07C2529/50 , C07C2529/65 , C07C2529/70 , Y02P20/52
摘要: This invention relates to a process for obtaining ethylene from anhydrous or aqueous ethanol by means of a catalyst of the crystalline aluminosilicate zeolite type of natural or synthetic origin.
摘要翻译: 本发明涉及通过天然或合成来源的结晶硅铝酸盐沸石催化剂从无水或含水乙醇获得乙烯的方法。
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公开(公告)号:US4670620A
公开(公告)日:1987-06-02
申请号:US902011
申请日:1986-08-28
IPC分类号: C07C1/24
CPC分类号: C07C1/24 , C07C2529/40
摘要: This invention relates to a process for obtaining ethylene from anhydrous or aqueous ethanol by means of a catalyst of the zeolite type containing a silicate of a metal M1 having a valence of 3 and 4 and a tetraedric coordination and containing possibly another charge compensating metal M2 selected among the elements of the Ia, Ib, IIa, IIb, IIIa, IIIb, IVa, IVb, Va, VIb, VIIb and VIII groups of the Mendeljev Table. As examples of M2 metals, the alkaline metals, the alkaline-earth metals and the lanthanides may be cited.According to the invention, anhydrous or aqueous ethanol is contacted with a catalyst of the above type, in which the ratio (M1-M2/n)/(Si+M1)(in which II is the valence of said other metal) is at most equal to 1.5%. The temperature of the catalyst and the contact time of ethanol with said catalyst are such that the conversion rate of ethanol into ethylene is about 100% and the carbon selectivity for ethylene is at least equal to about 99% by weight.
摘要翻译: 本发明涉及一种通过含沸石型催化剂的无水或含水乙醇获得乙烯的方法,所述沸石型催化剂含有具有3价和4价的金属M1的硅酸盐和四配位并且可能含有另一种电荷补偿金属M2 在孟德尔耶夫表中的Ia,Ib,IIa,IIb,IIIa,IIIb,IVa,IVb,Va,VIb,VIIb和VIII族的元素中。 作为M2金属的实例,可以列举碱金属,碱土金属和镧系元素。 根据本发明,无水或含水乙醇与上述类型的催化剂接触,其中比率(M1-M2 / n)/(Si + M1)(其中II是所述另一种金属的化合价)处于 最多等于1.5%。 催化剂的温度和乙醇与所述催化剂的接触时间使得乙醇转化成乙烯的转化率为约100%,并且乙烯的碳选择性至少等于约99重量%。
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公开(公告)号:US4656149A
公开(公告)日:1987-04-07
申请号:US792403
申请日:1985-10-29
IPC分类号: C10G3/00 , B01J29/035 , B01J29/06 , B01J29/40 , B01J29/70 , B01J29/90 , B01J38/42 , C07B61/00 , C07C1/00 , C07C4/06 , C07C5/22 , C07C9/00 , C07C67/00 , C10G45/64 , C10G47/16 , B01J20/18 , B01J29/28 , B01J37/22
CPC分类号: B01J29/703 , B01J29/035 , B01J29/40 , B01J29/90 , B01J2229/36 , B01J2229/40 , B01J2229/42 , Y02P30/20
摘要: The present invention relates to a process for the activation of siliceous catalysts selected among zeolites with a high silica content, organosilicates, polymorphous crystalline silicas and zeolites deactivated by treatment with water vapor.According to the invention, the catalyst is activated by reacting aluminum chloride and hydrogen chloride, both in gaseous phase with the catalyst, at a temperature between about 150.degree. and 600.degree. C. in the same reactor, the possible excess of gaseous hydrogen chloride being removed by means of an inert gas, such as nitrogen.
摘要翻译: 本发明涉及一种活化选自具有高二氧化硅含量的沸石,有机硅酸盐,多晶态二氧化硅和通过用水蒸气处理而失活的沸石的硅质催化剂的方法。 根据本发明,催化剂通过氯化铝和氯化氢在气相中与催化剂反应,在同一反应器中在约150℃和600℃之间的温度下活化,可能过量的氯化氢气体为 通过惰性气体如氮气去除。
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