公开(公告)号：US07462275B2

公开(公告)日：2008-12-09

申请号：US10894341

申请日：2004-07-20

申请人： Asit Kumar Das ,  Debasis Bhattacharyya ,  Gadari Saidulu ,  Satayen Kumar Das ,  Bandaru Venkata Hari P. Gupta ,  Ramakrishnan Ramanarayanan ,  Latoor Lal Saroya ,  Konduri Lakshminarayana ,  Marri Rama Rao ,  Vinod Ramchandra Upadhyay ,  Sukumar Mandal ,  Deepa Meghavathu ,  Arumugam Velayutham Karthikeyani ,  Wadharwa Ram Kalsi ,  Arvind Pratap Singh ,  Veena Bansal ,  Ashok Kumar Tiwari ,  Venkatachalam Krishnan ,  Satish Makhija ,  Sobhan Ghosh ,  Niranjan Raghunath Raje

发明人： Asit Kumar Das ,  Debasis Bhattacharyya ,  Gadari Saidulu ,  Satayen Kumar Das ,  Bandaru Venkata Hari P. Gupta ,  Ramakrishnan Ramanarayanan ,  Latoor Lal Saroya ,  Konduri Lakshminarayana ,  Marri Rama Rao ,  Vinod Ramchandra Upadhyay ,  Sukumar Mandal ,  Deepa Meghavathu ,  Arumugam Velayutham Karthikeyani ,  Wadharwa Ram Kalsi ,  Arvind Pratap Singh ,  Veena Bansal ,  Ashok Kumar Tiwari ,  Venkatachalam Krishnan ,  Satish Makhija ,  Sobhan Ghosh ,  Niranjan Raghunath Raje

IPC分类号： C10G67/00

CPC分类号： C10G11/05 ,  C10G2400/28

摘要： The present invention relates to a process for the conversion of hydrocarbon streams with 95% true boiling point less than 400° C. to very high yield of liquefied petroleum gas in the range of 45-65 wt % of feed and high octane gasoline, the said process comprises catalytic cracking of the hydrocarbons using a solid fluidizable catalyst comprising a medium pore crystalline alumino-silicates with or without Y-zeolite, non crystalline acidic materials or combinations thereof in a fluidized dense bed reactor operating at a temperature range of 400 to 550° C., pressure range of 2 to 20 kg/cm2 (g) and weight hourly space velocity in range of 0.1 to 20 hour−1, wherein the said dense bed reactor is in flow communication to a catalyst stripper and a regenerator for continuous regeneration of the coked catalyst in presence of air and or oxygen containing gases, the catalyst being continuously circulated between the reactor-regenerator system.

摘要翻译： 本发明涉及一种将95％真实沸点低于400℃的烃流转化成非常高产率的进料和高辛烷值汽油的45-65重量％的液化石油气的方法， 所述方法包括使用固体可流化催化剂催化裂化烃，所述固体可流化催化剂包含具有或不具有Y-沸石的中孔结晶铝硅酸盐，非结晶酸性物质或其组合，其在400至550℃的温度范围内操作的流化密床反应器 ℃，压力范围为2至20kg / cm2（g）和0.1至20小时-1范围内的重时空速，其中所述致密床反应器与用于连续的催化剂汽提塔和再生器流动连通 在存在空气和/或含氧气体的情况下再生焦化的催化剂，催化剂在反应器 - 再生器系统之间连续循环。