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1.发明授权
公开(公告)号：US5466857A
公开(公告)日：1995-11-14
申请号：US288118
申请日：1994-08-10
IPC分类号： B01J8/24 , B01J12/02 , C01C3/02 , C07C253/24 , C07C253/26 , C07C253/34 , C07C255/08 , C07C253/18
CPC分类号： C07C253/24 , C07C253/26 , Y02P20/52
摘要： A process for the reduction in the amount of waste material generated during the manufacture of acrylonitrile comprising introducing an additional amount of oxygen containing gas, preferably air, in the substantial absence of any oxygenate compounds, into the upper portion of the fluid bed reactor to react with at least some of the unreacted ammonia to reduce the amount of unreacted ammonia present in the reactor effluent.
摘要翻译： 一种减少在制造丙烯腈期间产生的废料量的方法，包括在基本没有任何含氧化合物的情况下将额外量的含氧气体（优选空气）引入流化床反应器的上部以进行反应 与至少一些未反应的氨以减少反应器流出物中存在的未反应的氨的量。
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2.发明授权
公开(公告)号：US5124291A
公开(公告)日：1992-06-23
申请号：US614311
申请日：1990-11-15
IPC分类号： B01J8/00 , B01J8/24 , B01J8/38 , B01J38/04 , B01J38/30 , C01B7/04 , C07C51/215 , C07C51/31 , C07C57/04 , C07C253/26 , C07C255/08 , C10B53/00 , C10G11/18 , C10J3/54
CPC分类号： B01J8/1827 , B01J38/04 , B01J38/30 , B01J8/0055 , B01J8/386 , C07C51/215 , C07C51/31 , B01J2208/00681 , Y02P20/584 , Y10S502/518
摘要： A fluid bed catalyst which has lost activity or fluidization quality through agglomeration, contamination, or a physical or chemical change on the surface of the catalyst is deagglomerated and/or its surface re-exposed, by contacting the fluidized catalyst with a high velocity gas sufficient to cause multiple collisions among the catalyst particles and thereby deagglomerating the particles and/or abrading the surface of the particles to expose fresh catalyst.
摘要翻译： 通过使流化催化剂与足够的高速气体接触，使催化剂表面上通过附聚，污染或物理或化学变化而失去活性或流化性质的流化床催化剂被解聚和/或其表面再暴露 以引起催化剂颗粒之间的多次碰撞，从而使颗粒解聚和/或研磨颗粒的表面以暴露新鲜的催化剂。
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