公开(公告)号：US5756421A

公开(公告)日：1998-05-26

申请号：US531125

申请日：1995-09-20

申请人： Vasant R. Choudhary ,  Amarjeet M. Rajput ,  Subhash D. Sansare ,  Bathula Prabhakar ,  Ajit S. Mamman

发明人： Vasant R. Choudhary ,  Amarjeet M. Rajput ,  Subhash D. Sansare ,  Bathula Prabhakar ,  Ajit S. Mamman

IPC分类号： B01J23/78 ,  B01J37/08 ,  C01B3/38 ,  C01B3/40 ,  B01J23/58

CPC分类号： B01J23/78 ,  B01J37/088 ,  C01B3/386 ,  C01B3/40 ,  C01B2203/0261 ,  C01B2203/0495 ,  C01B2203/1041 ,  C01B2203/1052 ,  C01B2203/1064 ,  C01B2203/1241 ,  C01B2203/1619 ,  Y02P20/52

摘要： The invention relates to a process for the preparation of novel composite catalysts useful for the oxidative conversion of methane to synthesis gas. The catalysts are represented by the formula: T.sub.m AO.sub.n, wherein T is a transition metal or metals, m is equal to the T/A mole ratio and is from 0.01 to 100, A is an alkaline earth metal or metals, O is oxygen and n is the number of oxygen atoms needed to form a catalyst composite wherein each element of the composite has a complete set of valence electrons. The process includes mixing compounds containing the transition metal or metals in finely ground form with the compounds containing the alkaline earth metals or metals in finely ground form in a T/A mole ratio of about 0.01 to about 100, heating the mixture to dryness at a temperature of about 80.degree. to 250.degree. C., decomposing the dried mixture at a temperature of about 400.degree. to 1200.degree. C., powdering the decomposed mixture and forming catalyst pellets thus formed at a temperature of about 400.degree. to 1500.degree. C.

摘要翻译： 本发明涉及制备用于将甲烷氧化转化为合成气的新型复合催化剂的方法。 催化剂由下式表示：TmAOn，其中T是过渡金属或金属，m等于T / A摩尔比，为0.01至100，A为碱土金属或金属，O为氧和n 是形成催化剂复合物所需的氧原子的数目，其中复合材料的每个元素具有完整的价电子组。 该方法包括以细磨的形式将含有过渡金属或金属的化合物与含有碱土金属或金属的化合物以约0.01至约100的T / A摩尔比混合，将混合物在 温度在约80℃至250℃，在约400℃至1200℃的温度下分解干燥的混合物，粉碎分解的混合物并在约400℃至1500℃的温度下形成催化剂颗粒。

公开(公告)号：US5338488A

公开(公告)日：1994-08-16

申请号：US943181

申请日：1992-09-10

申请人： Vasant R. Choudhary ,  Amarjeet M. Rajput ,  Subhash D. Sansare ,  Bathula Prabhakar ,  Ajit S. Mamman

发明人： Vasant R. Choudhary ,  Amarjeet M. Rajput ,  Subhash D. Sansare ,  Bathula Prabhakar ,  Ajit S. Mamman

IPC分类号： B01J23/78 ,  C01B3/38 ,  C01B3/40

CPC分类号： C01B3/40 ,  B01J23/78 ,  C01B3/386 ,  C01B2203/0261 ,  C01B2203/1011 ,  C01B2203/1041 ,  C01B2203/1052 ,  C01B2203/1064 ,  C01B2203/1241 ,  Y02P20/52

摘要： The invention relates to a process for the production of synthesis gas by oxidative conversion of methane using composite catalysts having the formula: T.sub.m AO.sub.n, wherein T is a transition metal or metals, m is the T/A mole ratio and is from 0.01 to 100, A is an alkaline earth metal or metals, O is oxygen and n is the number of oxygen atoms needed to form a catalyst composite wherein each element of the composite has a complete set of valence electrons. In a preferred embodiment, the process includes passing a gas containing methane and oxygen over the composite catalyst in a fixed bed reactor at a pressure in the range of 0.5-50 atm, and at a temperature in the range of 200.degree.-1000.degree. C., and recovering the synthesis gas.

摘要翻译： 本发明涉及一种通过使用具有下式的复合催化剂氧化甲烷来生产合成气的方法：TmAOn，其中T是过渡金属或金属，m是T / A摩尔比，为0.01至100， A是碱土金属或金属，O是氧，n是形成催化剂复合物所需的氧原子数，其中复合材料的每个元素具有完整的价电子。 在优选的实施方案中，该方法包括在固定床反应器中在0.5-50atm范围内的压力和200-1000℃的温度范围内将含有甲烷和氧气的气体通过复合催化剂 并回收合成气。