公开(公告)号：US06211104B1

公开(公告)日：2001-04-03

申请号：US09172649

申请日：1998-10-15

申请人： Zhicheng Shi ,  Fengmei Zhang ,  Shunhua Liu

发明人： Zhicheng Shi ,  Fengmei Zhang ,  Shunhua Liu

IPC分类号： B01J2906

CPC分类号： B01J29/80 ,  B01J29/084 ,  B01J29/40 ,  B01J2229/26 ,  B01J2229/42 ,  C10G11/05

摘要： A catalyst for catalytic pyrolysis process for the production of light olefins comprises 10˜70 wt % (based on the weight of catalyst) of clay, 5˜85 wt % of inorganic oxides and 1-50 wt % zeolite, wherein said zeolite is a mixture of 0˜25 wt % of Y type zeolite and 75˜100 wt % of phosphorus and aluminum or phosphorus and magnesium or phosphorus and calcium containing high silica zeolite having a structure of pentasil; said pentasil high silica zeolite being one selected from the group consisting of ZSM-5, ZSM-8 and ZSM-11 of zeolites containing 2˜8 wt % of phosphorus and 0.3˜3 wt % of aluminum or magnesium or calcium (calculated as the oxides), having a silica/alumina mole ratio of 15-60. The catalyst exhibits excellent activity stability and high yields of light olefin, especially for C2=. It can at the same level of yields of light olefins as that of steam thermal cracking at a lower reaction temperature than that of steam thermal cracking.

摘要翻译： 用于生产轻质烯烃的催化裂解方法的催化剂包括10〜70重量％（基于催化剂重量）的粘土，5〜85重量％的无机氧化物和1-50重量％的沸石，其中所述沸石为 0〜25重量％的Y型沸石和75〜100重量％的磷和铝或磷和镁或磷和含钙高的二氧化硅沸石的混合物具有pentasil结构; 所述pentasil高二氧化硅沸石是选自ZSM-5，ZSM-8和ZSM-11的沸石，ZSM-5，ZSM-8和ZSM-11含有2〜8wt％的磷和0.3〜3wt％的铝或镁或钙（以 氧化物），二氧化硅/氧化铝摩尔比为15-60。 该催化剂表现出优异的活性稳定性和高产率的轻烯烃，特别是对于C2 =。 在低于蒸汽热裂解反应温度的反应温度下，它可以与轻质烯烃的产率相同。

公开(公告)号：US4980053A

公开(公告)日：1990-12-25

申请号：US405576

申请日：1989-09-11

申请人： Zaiting Li ,  Shunhua Liu ,  Xingpin Ge

发明人： Zaiting Li ,  Shunhua Liu ,  Xingpin Ge

IPC分类号： C07C4/06 ,  B01J29/08 ,  B01J29/40 ,  B01J29/80 ,  C07B61/00 ,  C07C1/00 ,  C07C11/02 ,  C07C67/00 ,  C10G11/16 ,  C10G11/18 ,  C10G11/20

CPC分类号： C10G11/16 ,  C10G11/18

摘要： Various fractions of petroleum, including residual oils and crude oils, are catalytically converted to produce gaseous olefins, especially propylene and butylene, in fluidized or moving bed or transfer line reactors with solid, acidic catalysts in the presence of steam at a temperature of 500.degree. to 650.degree. C. and a pressure of 1.5.times.10.sup.5 Pa to 3.times.10.sup.5 Pa, with a weight space velocity of 0.2 to 20 hr.sup.-1 and catalyst-to-oil ratio of 2 to 12. Spent catalyst is continuously removed from the reactor to a regenerator where the coke is burned off and the hot catalyst is returned to the reactor. In a comparison with conventional catalytic cracking and tubular furnance pyrolysis processes, it is found that the process of the present invention produces more propylene and butylene. The total yield of the process of the present invention is about 40 percent by weight of the feedstock.