公开(公告)号：US5543041A

公开(公告)日：1996-08-06

申请号：US256142

申请日：1994-07-06

申请人： Hajime Okazaki ,  Manabu Kazato ,  Masaoki Ouchi ,  Haruki Nagano ,  Masaru Ushio ,  Kozo Kamiya

发明人： Hajime Okazaki ,  Manabu Kazato ,  Masaoki Ouchi ,  Haruki Nagano ,  Masaru Ushio ,  Kozo Kamiya

IPC分类号： C10G32/02 ,  C10G45/02 ,  C10G47/00 ,  C10G67/02 ,  C10G67/14 ,  C10G31/09

CPC分类号： C10G67/02 ,  C10G32/02

摘要： The present invention relates to a supply system for pre-treating a petroleum distillation residual oil to be fed to a hydrogenation apparatus. In order to remove iron fine particles having a particle size of less than 25.mu. in the feed oil which could be not removed in the prior art, by constituting a system comprising a heater for heating the feed oil to a given temperature by heat exchange with a high temperature bottom oil of a fractionating tower after hydrogenation treatment of the feed oil, a filter equipped with a back washing mechanism for filtering solid materials in the feed oil after heating, and a high gradient magnetic separator for magnetically separating magnetic iron fine particles having a particle size of less than 25.mu. contained in the feed oil. By the use of the above bottom oil of the fractionating distillation tower as a washing oil of the high gradient magnetic separator, iron fine particles in the feed oil were able to be removed by repeating an iron removing operation and a washing operation. By the use of this supply system for pre-treating the feed oil, iron fine particles attributable to clog and deterioration of a catalyst layer of the hydrogenation apparatus can be reduced, thereby the time capable of continuous running of the conventional hydrogenation apparatus can be extended.

摘要翻译： PCT No.PCT / JP93 / 01634 Sec。 371日期：1994年7月6日 102（e）日期1994年7月6日PCT 1993年11月10日PCT公布。 公开号WO94 / 11463 日期：1994年5月26日本发明涉及一种用于预处理供给氢化装置的石油蒸馏残油的供给系统。 为了在现有技术中除去可以不去除的原料油中的粒径小于25μm的铁微粒子，通过构成一种系统，该系统包括一个加热器，该加热器用于将进料油通过与 在进料油氢化处理后的分馏塔的高温底油，配备有用于过滤加热后的进料油中的固体物质的反洗机构的过滤器和用于磁分离磁性铁微粒的高梯度磁选机， 进料油中所含的小于25微米的粒度。 通过使用上述分馏塔的底部油作为高梯度磁选机的洗涤油，可以通过重复除铁操作和洗涤操作来除去进料油中的铁微粒。 通过使用该供给系统对原料油进行预处理，可以减少归因于加氢装置的阻塞和催化剂层劣化的铁细颗粒，从而可以延长常规氢化装置的连续运行时间 。