公开(公告)号：US20070060778A1

公开(公告)日：2007-03-15

申请号：US11226493

申请日：2005-09-14

申请人： Paula Bogdan ,  James Rekoske ,  Robert Larson ,  Patrick Whitchurch ,  John Bauer ,  Michael Quick

发明人： Paula Bogdan ,  James Rekoske ,  Robert Larson ,  Patrick Whitchurch ,  John Bauer ,  Michael Quick

IPC分类号： C07C5/22

CPC分类号： C07C5/2737 ,  C07C5/2775 ,  Y02P20/52 ,  C07C15/08

摘要： Reduced co-production of toluene and C9 and higher aromatics such as trimethylbenzene, methylethylbenzene, and diethylbenzene is achieved in processes for the isomerization of xylenes to close to equilibrium using a layered catalyst having a thin outer layer of molecular sieve and hydrogenation metal component on a core, wherein at least about 75 mass-% of the hydrogenation metal component is in the outer layer.

公开(公告)号：US20050080307A1

公开(公告)日：2005-04-14

申请号：US10951359

申请日：2004-09-28

申请人： Timur Voskoboynikov ,  Michael Quick ,  Peter Pujado ,  Bipin Vora

发明人： Timur Voskoboynikov ,  Michael Quick ,  Peter Pujado ,  Bipin Vora

IPC分类号： B01J29/035 ,  B01J29/40 ,  C07C4/06 ,  C07C4/02

CPC分类号： B01J29/035 ,  B01J29/40 ,  B01J2229/42 ,  C07C4/06 ,  Y02P20/52 ,  C07C11/04 ,  C07C11/06

摘要： The present invention comprises a process for producing propylene comprising the steps of contacting an olefin feed containing between about 40 and about 80 wt-% olefins and between about 20 and about 60 wt-% olefins and aromatics with a spherical catalyst to form a cracked product, the catalyst comprising about 30 to about 80 wt-% of a crystalline zeolite, the reaction conditions including a temperature from about 500° to 650° C., a hydrocarbon partial pressure of 70 to 280 kPa (10 to 40 psia), a liquid hourly space velocity in the range of 5 to 40 hr−1 and wherein propylene comprises at least 90 mol-% of the total C3 products.

摘要翻译： 本发明包括一种生产丙烯的方法，包括以下步骤：将含有约40至约80重量％的烯烃和约20至约60重量％的烯烃和芳族化合物的烯烃进料与球形催化剂接触以形成裂化产物 ，催化剂包含约30至约80重量％的结晶沸石，反应条件包括约500℃至650℃的温度，70至280kPa（10至40psia）的烃分压， 在5至40小时-1的范围内的液时空速，其中丙烯包含总C3产物的至少90摩尔％。

公开(公告)号：US20070215523A1

公开(公告)日：2007-09-20

申请号：US10316224

申请日：2002-12-10

申请人： Mark Moser ,  Michael Quick ,  Margo Steward

发明人： Mark Moser ,  Michael Quick ,  Margo Steward

IPC分类号： C10G35/00 ,  C10G35/06 ,  B01J23/42 ,  B01J27/13 ,  B01J27/185 ,  B01J27/00

CPC分类号： C10G35/09 ,  B01J21/04 ,  B01J23/42 ,  B01J23/89 ,  B01J27/125 ,  B01J27/16 ,  B01J35/1019 ,  B01J37/10 ,  C10G35/085

摘要： In order to maintain the surface area of an alumina catalyst over the course of operation and regeneration, a method of incorporating phosphorus into the alumina has been developed. By incorporating a small amount of phosphorus, the resulting catalyst is better able to withstand hydrothermal conditions, such as during a carbon burn step, which causes alumina surface area to degrade or decrease. Reduced surface area also desorbs chloride from the catalyst, lowering activity and increasing corrosion. Here, steam treatments have been used to simulate commercial hydrothermal stability and a critically small amount of phosphorus has been discovered which balances an increased surface area against decreased chloride retention. Increased surface area results from increased phosphorus, yet higher levels of phosphorus blocks ability to hold chloride. Moreover, X-ray data shows that an amount as low as 0.2 wt-% phosphorus increases alumina transition temperature, while pilot plant data shows excellent naphtha reforming yields.

摘要翻译： 为了在操作和再生过程中保持氧化铝催化剂的表面积，已经开发了将磷掺入到氧化铝中的方法。 通过加入少量的磷，所得到的催化剂能够更好地经受水热条件，例如在碳燃烧步骤期间，这导致氧化铝表面积降解或降低。 降低的表面积也能从催化剂中解吸氯化物，降低活性并增加腐蚀。 在这里，已经使用蒸汽处理来模拟商业水热稳定性，并且已经发现了极少量的磷，其平衡了增加的表面积与减少的氯化物保留性。 增加的磷表面积增加，磷含量较高，阻挡氯化物的能力。 此外，X射线数据显示低至0.2重量％磷的量增加氧化铝转变温度，而中试工厂数据显示优异的石脑油重整产率。