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1. 发明授权

US4191633A Process for suppression of hydrogenolysis and C.sub.5.sup.+ liquid yield loss in a reforming unit 失效
标题翻译：在重整单元中抑制氢解和C5 +液体产率损失的方法
公开(公告)号：US4191633A
公开(公告)日：1980-03-04
申请号：US923191
申请日：1978-07-10
申请人： Louis Dauber
发明人： Louis Dauber
IPC分类号： C10G35/04 , C10G35/06 , C10G35/08
CPC分类号： C10G35/04
摘要： In a reforming process wherein a feed naphtha is reformed, with hydrogen, over a reforming catalyst in a process unit, the improvement comprising the addition of infinitesimal, or small amounts of water or hydrogen halide, or both, or substance which can produce in situ water or hydrogen halide, or both, during the reforming operation to displace previously adsorbed sulfur, or to suppress the adsorption of sulfur by the catalyst to control the amount of sulfur added to the catalyst to a minimum effective level. It has been found, in the sequence of regeneration and reactivation, that the ability of a catalyst to operate in a hydrogenolysis mode can be effectively suppressed after the freshly prepared catalyst has been regenerated, and reactivated several times, generally above five times or more, by presulfiding the catalyst by the addition of a minimal amount of sulfur, preferably a maximum of about 0.01 weight percent sulfur on the catalyst. Water is injected to displace excess sulfur from oversulfided catalyst and a water wave will travel downstream from the catalyst of a reactor to either redistribute sulfur to any undersulfided catalysts of other reactors or help purge the excess sulfur from the system in the form of hydrogen sulfide released to and carried by the recycle gas. Preferably, a modified catalyst presulfiding regimen is imposed wherein the amount of sulfur added to a fresh catalyst is progressively, and preferably proportionately reduced from one regeneration, reactivation sequence to the next such that, on and after about the fifth regeneration, and reactivation of the catalyst a maximum of about 0.01 weight percent sulfur is added to the catalyst.
摘要翻译：在一种重整过程中，其中进料石脑油用氢气重整在工艺单元中的重整催化剂上，其改进包括加入无穷小或少量的水或卤化氢或两者，或可原位产生的物质水或卤化氢，或两者，在重整操作期间以置换先前吸附的硫，或抑制催化剂吸附硫以将加入催化剂的硫的量控制在最低有效水平。已经发现，在再生和再活化的顺序中，在新制备的催化剂已被再生之后，可以有效地抑制催化剂在氢解模式下操作的能力，并重新激活数次，通常大于5倍以上，通过在催化剂上加入最少量的硫，优选最大约0.01重量％的硫来预硫化催化剂。注入水以从过硫化的催化剂中取代过量的硫，并且水波将从反应器的催化剂下游传播，以将硫再分布到其他反应器的任何不足的硫化催化剂，或者以释放的硫化氢的形式帮助净化系统中的多余的硫由循环气体运送并携带。优选地，进行改性的催化剂预硫化方案，其中添加到新鲜催化剂中的硫的量是逐渐地，并且优选从一个再生，再活化顺序到下一个的再次活化顺序逐个减少，使得在第五次再生之后和之后，重新激活向催化剂中加入最多约0.01重量％的硫的催化剂。

2. 发明授权

US4125454A Process for suppression of catalyst deactivation and C.sub.5 + liquid yield loss in a cyclic reforming unit 失效
标题翻译：抑制催化剂失活的方法和C（HD 5 {B {30}在循环重整单元中的液体产率损失
公开(公告)号：US4125454A
公开(公告)日：1978-11-14
申请号：US851060
申请日：1977-11-14
申请人： Kenneth R. Clem , George A. Swan , Louis Dauber
发明人： Kenneth R. Clem , George A. Swan , Louis Dauber
IPC分类号： C10G59/02 , C10G35/04 , C10G35/08
CPC分类号： C10G35/04
摘要： A process for reforming with hydrogen, or hydroforming, a naphtha in a cyclic reforming unit which contains a plurality of catalyst-containing on stream reactors in series, and a catalyst-containing swing reactor manifolded therewith which can be periodically placed in series and substituted for an on stream reactor while the latter is removed from series for regeneration and reactivation of the catalyst contained therein. In the process, a reactor which is next scheduled for regeneration and reactivation of its near deactivated catalyst is located immediately downstream next in series with a reactor which contains freshly regenerated, reactivated catalyst at the time the latter is initially put on stream so that sulfur released by the freshly regenerated, reactivated catalyst which occurs a short time after the upstream reactor has been returned to service, is adsorbed by the near deactivated catalyst of the reactor next requiring removal from the series for catalyst regeneration and reactivation. Subsequent to this time, and prior to any desorption and release of major concentrations of sulfur from the deactivated catalyst, the reactor used for scavenging the sulfur is then swung out of series for regeneration and reactivation of the sulfided catalyst, and replaced in the series by the swing reactor.
摘要翻译：在含有多个含有串联反应器的含催化剂的反应器的循环重整单元中用氢气或液压成型重整石脑油的方法，以及含有其的含催化剂的挥发反应器，其可以周期性地串联并代替一种在线反应器，而后者则从串联中除去，用于再生和再活化其中所含的催化剂。在此过程中，接下来计划用于其近钝化催化剂的再生和再活化的反应器紧邻下游与包含新鲜再生的再活化催化剂的反应器在下游串联，在反应器最初置于流动时，使得硫释放通过在上游反应器返回使用后短时间内发生的新鲜再生的再活化催化剂被反应器的近钝化催化剂吸附，需要从该系列中除去催化剂再生和再活化。在此之后，在从失活的催化剂中解吸和释放主要浓度的硫之前，然后将用于清除硫的反应器串联排出以再生和重新活化硫化催化剂，并以串联方式替换摆动反应堆。

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