公开(公告)号：US5518607A

公开(公告)日：1996-05-21

申请号：US450

申请日：1993-01-04

申请人： Leslie A. Field ,  Ann Marie K. Hall ,  Richard C. Robinson ,  Robert L. Jacobson ,  Warren E. Brown ,  Dennis L. Holtermann

发明人： Leslie A. Field ,  Ann Marie K. Hall ,  Richard C. Robinson ,  Robert L. Jacobson ,  Warren E. Brown ,  Dennis L. Holtermann

IPC分类号： C10G59/02 ,  C10G69/08 ,  C10G35/06

CPC分类号： C10G59/02 ,  C10G69/08

摘要： A process is disclosed for removing residual sulfur from a hydrotreated naphtha feedstock. The feedstock is contacted with molecular hydrogen under reforming conditions in the presence of a less sulfur sensitive reforming catalyst to convert trace sulfur compounds to H.sub.2 S, and to form a first effluent. The first effluent is contacted with a solid sulfur sorbent to remove the H.sub.2 S and form a second effluent. The second effluent is then contacted with a highly selective reforming catalyst under severe reforming conditions. Also disclosed is a method using a potassium containing sulfur sorbent made from nitrogen-free potassium compounds.

摘要翻译： 公开了从加氢处理的石脑油原料中除去残余硫的方法。 在重硫条件下，在较少硫敏感的重整催化剂的存在下，原料与分子氢接触，以将痕量硫化合物转化为H 2 S，并形成第一流出物。 将第一流出物与固体硫吸附剂接触以除去H 2 S并形成第二流出物。 然后在严格的重整条件下将第二流出物与高度选择性的重整催化剂接触。 还公开了使用由无氮钾化合物制成的含钾硫吸附剂的方法。

公开(公告)号：US5401386A

公开(公告)日：1995-03-28

申请号：US95844

申请日：1993-07-23

申请人： Scott G. Morrison ,  Warren E. Brown

发明人： Scott G. Morrison ,  Warren E. Brown

IPC分类号： C10G61/04 ,  C07C5/00 ,  C10G35/06

CPC分类号： C10G61/04

摘要： Provided is a reforming process for producing a high purity benzene product using a non-acidic zeolitic catalyst. The high purity benzene is extracted from a light fraction of reformate that has less than 500 ppm by weight toluene. Generally, a hydrocarbon feed is reformed in a reformer under reforming conditions in the presence of a non-acidic catalyst to produce a reformate. That reformate is separated into a light fraction and a heavy fraction. The extraction unit, preferably an extractive distillation unit, is then used to separate the light fraction into an aromatic extract stream and a nonaromatic raffinate stream.

摘要翻译： 提供了使用非酸性沸石催化剂制造高纯度苯产物的重整方法。 从具有少于500重量ppm的甲苯的轻馏分重整产物中提取高纯度苯。 通常，在重整器中，在非酸性催化剂存在下，在重整器中重整碳氢化合物进料以产生重整产物。 重整产物被分成轻馏分和重馏分。 然后使用提取单元，优选萃取蒸馏单元将轻馏分分离成芳烃萃取物流和非芳族萃余液流。

公开(公告)号：US5322615A

公开(公告)日：1994-06-21

申请号：US804600

申请日：1991-12-10

申请人： Dennis L. Holtermann ,  Warren E. Brown

发明人： Dennis L. Holtermann ,  Warren E. Brown

IPC分类号： B01J20/10 ,  B01J23/40 ,  C07B61/00 ,  C07C5/41 ,  C07C15/02 ,  C10G25/00 ,  C10G35/06 ,  C10G45/06 ,  C10G45/10 ,  C10G61/06 ,  C10G67/06 ,  C10G69/08 ,  C10G45/00

CPC分类号： C10G69/08 ,  C10G67/06

摘要： Provided is a method for removing residual sulfur from a hydrotreated naphtha feedstock. The process comprises contacting the naphtha feedstock with a first solid sulfur sorbent comprising a metal on a support to thereby form a first effluent. The effluent is then contacted with a sulfur conversion catalyst comprising a Group VIII metal in the presence of hydrogen, with the resulting effluent being contacted with a second solid sulfur sorbent containing a Group IA or IIA metal, to thereby lower the sulfur content of the feedstock to less than 10 ppb, and to as low as 1 ppb or less. The feedstock can then be safely used with highly sulfur sensitive zeolitic reforming catalysts without adversely affecting the useful life of the catalyst.

摘要翻译： 提供了从加氢处理的石脑油原料中除去残留硫的方法。 该方法包括使石脑油原料与载体上包含金属的第一固体硫吸附剂接触，从而形成第一流出物。 然后在氢的存在下，将流出物与包含VIII族金属的硫转化催化剂接触，所得流出物与含有IA或IIA族金属的第二固体硫吸附剂接触，从而降低原料的硫含量 至少于10ppb，低至1ppb或更低。 然后可以将原料安全地用于高度敏感的沸石重整催化剂，而不会不利地影响催化剂的使用寿命。

公开(公告)号：US4830536A

公开(公告)日：1989-05-16

申请号：US634122

申请日：1984-07-25

申请人： Robert M. Birch ,  Warren E. Brown

发明人： Robert M. Birch ,  Warren E. Brown

IPC分类号： E21D11/08

CPC分类号： E21D11/083

摘要： A method and apparatus for tunnel lining is provided made up of arcuate liner segments having a formed body with two end walls and two substantially parallel sidewalls, at least two pins extending from one sidewall intermediate its length in the median plane of the body and transverse to said sidewall, a like number of openings in the other sidewall each adapted to receive one of said at least two pins from two adjacent interfitting segments and locking means in said opening permitting insertion of said at least two pins in said openings of adjacent segments and lockingly engaging the same against removal and urging said two adjacent fittings into tight end to end engagement.

摘要翻译： 一种用于隧道衬砌的方法和装置由弓形衬套段构成，其中弧形衬套段具有一个具有两个端壁和两个基本上平行的侧壁的成形体，至少两个销从身体中间平面中的一个侧壁延伸， 所述侧壁在另一个侧壁中具有相似数量的开口，每个孔适于从两个相邻的嵌合段接收所述至少两个销中的一个，并且所述开口中的锁定装置允许将所述至少两个销插入相邻段的所述开口中并锁定 将其接合到移除并且促使所述两个相邻的配件紧密地端对端接合。

公开(公告)号：US5516421A

公开(公告)日：1996-05-14

申请号：US291810

申请日：1994-08-17

申请人： Warren E. Brown ,  Dennis L. Holtermann ,  John V. Heyse

发明人： Warren E. Brown ,  Dennis L. Holtermann ,  John V. Heyse

IPC分类号： C10G9/12 ,  C10G9/16 ,  C10G9/20 ,  C10G35/04

CPC分类号： C10G9/12 ,  C10G35/04 ,  C10G9/16 ,  C10G9/203

摘要： A process for reducing the amount of down time or yield loss associated with a sulfur upset when using a sulfur-sensitive catalyst. The process comprises applying a metallic coat, cladding, plating or paint to a reactor system which comprises a base metal, so as to form an adherent metallic layer on the base metal and thereby produce a metal-coated reactor system; loading a sulfur-sensitive catalyst into the system; and, after a sulfur upset, using a process comprising sulfur stripping to remove sulfur contaminants from the metal-coated reactor system.

摘要翻译： 当使用硫敏感催化剂时，减少与硫磺不适相关的停机时间或产量损失量的方法。 该方法包括将金属涂层，包层，电镀或涂料施加到包括贱金属的反应器系统上，以在贱金属上形成粘附金属层，从而制备金属涂覆的反应器系统; 将硫敏感催化剂加载到体系中; 并且在硫磺镦粗之后，使用包含硫汽提的方法从金属涂覆的反应器系统中除去硫污染物。