公开(公告)号：US07649122B2

公开(公告)日：2010-01-19

申请号：US11599864

申请日：2006-11-15

申请人： Michael C. Clark ,  Vijay Nanda

发明人： Michael C. Clark ,  Vijay Nanda

IPC分类号： C07C2/58

CPC分类号： C07C2/66 ,  C07C2529/06 ,  C10G2400/30 ,  C07C15/073 ,  C07C15/085

摘要： A process for alkylation of an alkylatable aromatic compound to produce a monoalkylated aromatic compound, comprising the steps of (a) contacting at least one the alkylatable aromatic compound and at least one the alkylating agent with at least one molecular sieve catalyst under suitable alkylation or transalkylation conditions in at least one reaction zone, to produce at least one effluent which comprises the monoalkylated aromatic compound, wherein the suitable alkylation or transalkylation conditions comprise a water content being in a range from about 1 wppm to about 10 wt. % based on the combined weight of the alkylatable aromatic compound and the alkylating agent; and (b) maintaining the water content in the reaction zone; wherein the cycle length of the molecular sieve catalyst operated inside the range of the water content is greater than the cycle length of the molecular sieve catalyst operated outside the range of the water content.

摘要翻译： 烷基化芳族化合物以制备单烷基化芳族化合物的方法，包括以下步骤：（a）在合适的烷基化或烷基转移下使至少一种可烷基化芳族化合物与至少一种烷基化剂与至少一种分子筛催化剂接触 在至少一个反应区中的条件，以产生至少一种包含单烷基化芳族化合物的流出物，其中合适的烷基化或烷基转移条件包括水含量在约1wppm至约10wt。 基于可烷基化芳族化合物和烷基化剂的总重量的％; 和（b）保持反应区中的水分含量; 其中在水含量范围内操作的分子筛催化剂的循环长度大于在水含量范围之外运行的分子筛催化剂的循环长度。

公开(公告)号：US07385098B2

公开(公告)日：2008-06-10

申请号：US11546678

申请日：2006-10-12

申请人： Vijay Nanda

发明人： Vijay Nanda

IPC分类号： C07C2/66

CPC分类号： B01J29/40 ,  B01J37/0009 ,  B01J2229/42 ,  C07C2/66 ,  C07C15/073

摘要： The invention relates to a process for producing alkylated aromatics, preferably ethylbenzene, in a multiple bed reactor in which at least two catalysts, each comprising a molecular sieve, are used in sequential beds. The first alkylation catalyst is selected to have a higher activity or alpha value than the subsequent alkylation catalyst.

摘要翻译： 本发明涉及在多床反应器中制备烷基化芳族化合物，优选乙苯的方法，其中在顺序床中使用至少两种各自包含分子筛的催化剂。 选择第一烷基化催化剂具有比随后的烷基化催化剂更高的活性或α值。