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公开(公告)号：US5827793A
公开(公告)日：1998-10-27
申请号：US634494
申请日：1996-04-11
申请人： Albert Y. Hu
发明人： Albert Y. Hu
CPC分类号： C10G11/182
摘要： Spent FCC catalyst is regenerated under net reducing conditions in a regenerator to minimize the migration of vanadium on the spent FCC catalyst particles. Reducing conditions in at least the bottom 50% of the catalyst bed are maintained by using at least two air distribution grids located in the lower 50% of the catalyst bed.
摘要翻译： 在再生器的净还原条件下再生废催化剂催化剂，以最小化钒在废FCC催化剂颗粒上的迁移。 通过使用位于催化剂床的较低的50％的至少两个空气分配网格来维持催化剂床的至少底部50％中的减少条件。
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公开(公告)号：US07655826B2
公开(公告)日：2010-02-02
申请号：US11104315
申请日：2005-04-12
申请人： Charles M. Yarbrough , Vijay Swarup , Patrick Joseph Maher , Albert Y Hu , Michael Walter Bedell
发明人： Charles M. Yarbrough , Vijay Swarup , Patrick Joseph Maher , Albert Y Hu , Michael Walter Bedell
CPC分类号： C07C1/24 , C07C1/213 , C10G3/40 , C10G3/49 , C10G3/57 , C10G3/62 , C10G2300/1037 , C10G2300/202 , C10G2300/4093 , C10G2400/20 , C10G2400/28
摘要： This invention relates to a method of making an olefin from a dialkyl ether comprising (a) introducing an ether having a formula CxH2x+1CyH2y+1 into a thermal or catalytic cracking unit processing a hydrocarbon feedstock; and (b) decomposing at least a portion of the ether to form an olefin having a formula CxH2x and/or CyH2y and an alcohol having a formula CxH2x+1 and/or CyH2y+1OH, wherein x and y independently range from about 1 to about 30. This invention also relates to a method of reducing coking in a thermal or catalytic cracking unit comprising (a) introducing an ether, having a formula CxH2x+1OCyH2y+1, into the cracking unit processing a hydrocarbon feedstock in an amount effective to reduce coke formation relative to processing the hydrocarbon feedstock in the absence of the ether, wherein x and y independently range from about 1 to about 30.
摘要翻译： 本发明涉及一种由二烷基醚制备烯烃的方法，包括（a）将具有式CxH2x + 1CyH2y + 1的醚导入加工烃原料的热催化裂解装置; 和（b）分解至少一部分醚以形成具有式CxH2x和/或CyH2y的烯烃和具有式CxH2x + 1和/或CyH2y + 1OH的醇，其中x和y独立地为约1至 本发明还涉及一种在热或催化裂化装置中减少焦化的方法，其包括（a）将具有式C x H 2 x + 1 O yy yy + 1的式C 4 H 8 O x + 1 O yy H y + 1的醚引入到裂化装置中， 在不存在醚的情况下相对于处理烃原料减少焦炭形成，其中x和y独立地为约1至约30。
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