-
公开(公告)号：US5401385A
公开(公告)日：1995-03-28
申请号：US104835
申请日：1993-08-10
摘要： A process combination is disclosed to selectively upgrade catalytically cracked gasoline to obtain products suitable for further upgrading to reformulated fuels. A naphtha feedstock, preferably heavy naphtha, is hydrogenated to saturate aromatics, followed by selective isoparaffin synthesis to yield light and heavy synthesis naphtha and isobutane. The heavy synthesis naphtha may be processed by reforming, light naphtha may be isomerized, and isobutane may be upgraded by dehydrogenation, etherification and/or alkylation to yield gasoline components from the process combination suitable for production of reformulated gasoline.
摘要翻译： 公开了一种方法组合以选择性地升级催化裂化汽油以获得适于进一步升级至重整燃料的产品。 氢化石脑油原料，优选重石脑油，使芳烃饱和，然后进行选择性异链烷烃合成，得到轻质和重质合成石脑油和异丁烷。 重质合成石脑油可以通过重整进行加工，轻质石脑油可以被异构化，并且异丁烷可以通过脱氢，醚化和/或烷基化来提高，从适用于生产重整汽油的方法组合产生汽油组分。
-
公开(公告)号：US5200059A
公开(公告)日：1993-04-06
申请号：US796519
申请日：1991-11-21
摘要： A process combination is disclosed to reduce the aromatics content and increase the oxygen content of a key component of gasoline blends. A naphtha feedstock having a boiling range usually suitable as catalytic-reforming feed is processed by selective isoparaffin synthesis to yield lower-molecular weight hydrocarbons including a high yield of isobutane. The isobutane is processed to yield an ether component by dehydrogenation and etherification. The cracked light naphtha may be upgraded by isomerization. The heavier portion of the cracked naphtha is processed in a reformer. A gasoline component containing oxygen as ether and having a reduced aromatics content and increased volumetric yield relative to reformate of the same octane number is blended from the net products of the above processing steps. The process combination is particularly suited for use in an existing refinery.
摘要翻译： 公开了一种方法组合以减少芳族化合物含量并增加汽油混合物的关键组分的氧含量。 具有通常适合作为催化重整进料的沸点的石脑油原料通过选择性异链烷烃合成进行加工，以产生包括高产率的异丁烷的低分子量烃。 处理异丁烷以通过脱氢和醚化产生醚组分。 裂解轻石脑油可以通过异构化升级。 裂解石脑油的较重部分在重整器中进行处理。 从上述处理步骤的净产品中混合含有氧作为醚并且相对于相同辛烷值的重整产物具有降低的芳族化合物含量和增加的体积产率的汽油组分。 该工艺组合特别适用于现有炼油厂。
-
公开(公告)号：US5198097A
公开(公告)日：1993-03-30
申请号：US796101
申请日：1991-11-21
摘要： A process combination is disclosed to reduce the aromatics content and increase the oxygen content of a key component of gasoline blends. A naphtha feedstock having a boiling range usually suitable as catalytic-reforming feed is processed by selective isoparaffin synthesis to yield lower-molecular weight hydrocarbons including a high yield of isobutane. A portion of the isobutane is processed to yield an ether component by dehydrogenation to yield isobutene followed by etherification. Part of the isobutane and isobutene are alkylated to produce an alkylate component. The synthesis light naphtha may be upgraded by isomerization. The heavier portion of the synthesis naphtha is processed in a reformer. A gasoline component containing oxygen as ether and having a reduced aromatics content and increased volumetric yield relative to reformate of the same octane number is blended from the net products of the above processing steps.
摘要翻译： 公开了一种方法组合以减少芳族化合物含量并增加汽油混合物的关键组分的氧含量。 具有通常适合作为催化重整进料的沸点的石脑油原料通过选择性异链烷烃合成进行加工，以产生包括高产率的异丁烷的低分子量烃。 处理一部分异丁烷以通过脱氢产生醚组分以产生异丁烯，接着进行醚化。 将异丁烷和异丁烯的一部分烷基化以产生烷基化物组分。 合成轻石脑油可通过异构化升级。 合成石脑油的较重部分在重整器中进行处理。 从上述处理步骤的净产品中混合含有氧作为醚并且相对于相同辛烷值的重整产物具有降低的芳族化合物含量和增加的体积产率的汽油组分。
-
公开(公告)号：US4746764A
公开(公告)日：1988-05-24
申请号：US939337
申请日：1986-12-08
IPC分类号： B01J29/62 , C07C5/41 , C07C15/00 , C10G35/095 , C07C2/52
CPC分类号： C10G35/095 , B01J29/62 , C07C5/417 , B01J2229/26 , B01J2229/42
摘要： A novel dehydrocyclization process for the conversion of C.sub.6 -plus paraffins to their corresponding aromatics is presented. This process is characterized by a unique catalytic composite which contains a nonacidic L-zeolite, a Group VIII metal component and sufficient surface-deposited alkali metal to provide a surface-deposited alkali metal index of from about 40 to about 500. A further characterization is that the catalyst is prepared without subjecting the L-zeolite to a solution having a pH of greater than 9, and without appreciable loss of SiO.sub.2 from the L-zeolite.
摘要翻译： 提出了一种用于将C6加烷烃转化成其相应芳烃的新型脱氢环化方法。 该方法的特征在于独特的催化复合材料，其含有非酸性L-沸石，第VIII族金属组分和足够的表面沉积碱金属，以提供约40至约500的表面沉积碱金属指数。进一步的表征 制备催化剂，而不使L-沸石经受pH大于9的溶液，并且没有来自L-沸石的可观的SiO 2损失。
-
-
-
搜索结果
44 条记录 (耗时 0.029 秒)
