12-03-2015 дата публикации
Номер: US20150073192A1
Автор:
Alcid Marian,
Cizeron Joel M.,
Gamoras Joel,
McCormick Jarod,
Nyce Greg,
Ras Erik-Jan,
Rosenberg Daniel,
Rumplecker Anja,
Schammel Wayne P.,
Scher Erik C.,
Zurcher Fabio R.
Принадлежит:
Metal oxide catalysts comprising various dopants are provided. The catalysts are useful as heterogenous catalysts in a variety of catalytic reactions, for example, the oxidative coupling of methane to C2 hydrocarbons such as ethane and ethylene. Related methods for use and manufacture of the same are also disclosed. 185-. (canceled)86. A method for the preparation of ethane , ethylene or combinations thereof , the method comprising contacting a catalyst with a gas comprising methane , the catalyst comprising:{'sub': 4-x', 'x', '6, 'the formula Ln1Ln2O, wherein Ln1 and Ln2 are each independently a different lanthanide element, and x is a number ranging from greater than 0 to less than 4; and'}at least one doping element from groups 1-16, lanthanides, actinides or combinations thereof,{'sub': '2', 'wherein the catalyst further comprises a Cselectivity of greater than 50% and a methane conversion of greater than 20% when the catalyst is employed as a heterogeneous catalyst in the oxidative coupling of methane at a temperature of 750° C. or less.'}87. The method of claim 86 , wherein the at least one doping element is selected from groups 1-4 claim 86 , 8 claim 86 , 13 claim 86 , 14 claim 86 , lanthanides claim 86 , actinides and combinations thereof.88. The method of claim 86 , wherein the at least one doping element is selected from groups 1-6 claim 86 , 8 claim 86 , 11 claim 86 , 13-15 claim 86 , lanthanides claim 86 , actinides and combinations thereof.89. The method of claim 86 , wherein the at least one doping element is a rare earth element.90. The method of claim 86 , wherein the at least one doping element is Na claim 86 , Mg claim 86 , Ca claim 86 , Sr claim 86 , Ga claim 86 , Sc claim 86 , Y claim 86 , Zr claim 86 , In claim 86 , Nd claim 86 , Eu claim 86 , Sm claim 86 , Ce claim 86 , Gd claim 86 , Hf claim 86 , Ho claim 86 , Tm claim 86 , W claim 86 , La claim 86 , K claim 86 , Dy claim 86 , In claim 86 , Cs claim 86 , S claim 86 , Zn claim 86 , Rb claim 86 ...
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