公开(公告)号：US4835128A

公开(公告)日：1989-05-30

申请号：US938097

申请日：1986-12-04

申请人： Jonathan E. Child ,  Ajit V. Sapre

发明人： Jonathan E. Child ,  Ajit V. Sapre

IPC分类号： B01J8/00 ,  C10G11/18

CPC分类号： B01J8/005 ,  C10G11/182 ,  Y10S502/516 ,  Y10S502/521

摘要： A system is provided for passivating metals, such as vanadium, deposited on a catalyst during a conversion reaction. Spent catalyst particles containing the metal deposits are introduced into a regenerator, and passivating particles containing the passivating materials are also introduced into the regenerator. The passivating particles and the catalyst particles are separated after they have exited from the regenerator. At least a portion of the separated passivating particles are recycled to the regenerator, and the regenerated, separated catalyst particles are reintroduced into a reaction zone, such as a riser conversion zone.

摘要翻译： 提供了在转化反应期间钝化沉积在催化剂上的金属（例如钒）的系统。 将含有金属沉积物的废催化剂颗粒引入再生器中，并且将含有钝化材料的钝化颗粒引入再生器中。 钝化颗粒和催化剂颗粒在从再生器中排出之后被分离。 将分离的钝化颗粒的至少一部分再循环到再生器中，并将再生的分离的催化剂颗粒重新引入反应区，例如提升管转化区。

公开(公告)号：US4750357A

公开(公告)日：1988-06-14

申请号：US839240

申请日：1986-03-13

申请人： David H. Anderson ,  Frederick J. Krambeck ,  Mou-neng M. Lo ,  Ajit V. Sapre

发明人： David H. Anderson ,  Frederick J. Krambeck ,  Mou-neng M. Lo ,  Ajit V. Sapre

IPC分类号： B01J8/00 ,  G01F1/68 ,  G01F1/74

CPC分类号： B01J8/001 ,  G01F1/68 ,  G01F1/74

摘要： A method for measuring local fluid flow rates in a vessel, e.g., a packed bed two-phase flow catalytic reactor, is disclosed which comprises:(a) arranging a plurality of heated thermocouple probes in the vessel at predetermined locations in the path of the fluid flow therethrough;(b) obtaining a first set of temperature readings with the probe heaters off to provide the local reactor temperature;(c) obtaining a second set of temperature readings with the probe heaters on to provide the skin temperature of the heater well;(d) using the difference between readings (b) and (c) to calculate the fluid flow rates.

摘要翻译： 公开了一种用于测量容器（例如填充床两相流动催化反应器）中的局部流体流速的方法，其包括：（a）在容器中的预定位置处将多个加热的热电偶探针布置在容器的路径中的预定位置处 流体流过其中; （b）用探针加热器取出第一组温度读数以提供局部反应器温度; （c）用探针加热器获得第二组温度读数以提供加热器的皮肤温度; （d）使用读数（b）和（c）之间的差来计算流体流速。

公开(公告)号：US4550217A

公开(公告)日：1985-10-29

申请号：US645195

申请日：1984-08-29

申请人： Kenneth R. Graziani ,  Ajit V. Sapre

发明人： Kenneth R. Graziani ,  Ajit V. Sapre

IPC分类号： C07C1/20

CPC分类号： C07C1/20 ,  C07C2529/40 ,  C07C2529/65 ,  C07C2529/70 ,  Y02P20/52

摘要： The present invention describes a methanol-to-chemical process for converting methanol to olefins using large catalyst particles. The large catalyst particles result in significant improvements in catalyst activity and reactor stability.

摘要翻译： 本发明描述了使用大的催化剂颗粒将甲醇转化为烯烃的甲醇 - 化学方法。 大的催化剂颗粒导致催化剂活性和反应器稳定性的显着改善。