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公开(公告)号：US5356845A
公开(公告)日：1994-10-18
申请号：US60333
申请日：1993-05-11
CPC分类号： B01J23/94 , B01J38/06 , C01B3/40 , C01B3/44 , C01B2203/1052 , Y02P20/52 , Y02P20/584 , Y10S502/516
摘要： A process for the reactivation, or rejuvenation of a nickel-alumina catalyst employed in the production of a gas comprised of an admixture of hydrogen and carbon monoxide, or synthesis gas, by the conversion, in a reactor, or reaction zone, of light hydrocarbons in a fluidized bed of the catalyst at elevated temperature, in the presence of steam and oxygen. Catalyst reactivation is accomplished by withdrawing a portion of the catalyst from the fluidized bed of the reactor and treating the catalyst in an oxidation zone at temperature sufficient to oxidize and convert the nickel component of the catalyst to nickel aluminate and disperse said nickel aluminate within the alumina support, and then recycling the treated catalyst to the reactor, or reaction zone, to reactivate and increase the activity of the catalyst. The catalyst, on reduction in the reactor, or reaction zone, is provided an additional boost in activity by washing, treating or contacting the catalyst from the elevated temperature oxidation zone with an acid sufficient to remove trace impurities without removing any substantial amount of the nickel aluminate, and without forming a residue on the catalyst surface. The normal tendency of the catalyst to agglomerate at reaction conditions is also reduced by the acid treatment.
摘要翻译： 一种用于生产由氢和一氧化碳的混合气体组成的气体或通过在反应器或反应区中转化的轻烃的合成气的镍 - 氧化铝催化剂的再活化或再生的方法 在催化剂的流化床中，在升高的温度下，在蒸汽和氧气的存在下。 催化剂再活化是通过从反应器的流化床中取出一部分催化剂并在氧化区中处理催化剂，该温度足以氧化并将催化剂的镍组分转化为铝酸镍，并将所述铝酸镍分散在氧化铝 支撑物，然后将经处理的催化剂再循环到反应器或反应区，以重新活化并增加催化剂的活性。 催化剂在还原反应器或反应区中的活性通过从高温氧化区洗涤，处理或接触催化剂而提供额外的活性提高，该酸足以除去痕量杂质而不除去任何相当大量的镍 铝酸盐，并且不在催化剂表面上形成残余物。 催化剂在反应条件下凝聚的正常趋势也通过酸处理降低。
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公开(公告)号：US20100065469A1
公开(公告)日：2010-03-18
申请号：US12312054
申请日：2007-10-19
CPC分类号： C10G73/34 , G01N25/04 , G01N33/2835
摘要： The determination of wax crystal particle size and population is used to monitor the performance of wax crystallizers used in lubricant oil processing using solvent dewaxing. The wax crystal particle size is monitored using online measurements. The information obtained from on-line monitoring is then used to control crystallization in the dewaxing equipment in order to optimize performance of the dewaxing units.
摘要翻译： 蜡结晶粒度和群体的测定用于监测使用溶剂脱蜡的润滑油处理中使用的蜡结晶器的性能。 使用在线测量来监测蜡晶粒度。 然后使用在线监测获得的信息来控制脱蜡设备中的结晶，以优化脱蜡装置的性能。
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公开(公告)号：US08029661B2
公开(公告)日：2011-10-04
申请号：US12312054
申请日：2007-10-19
IPC分类号： C10G73/08
CPC分类号： C10G73/34 , G01N25/04 , G01N33/2835
摘要： The determination of wax crystal particle size and population is used to monitor the performance of wax crystallizers used in lubricant oil processing using solvent dewaxing. The wax crystal particle size is monitored using online measurements. The information obtained from on-line monitoring is then used to control crystallization in the dewaxing equipment in order to optimize performance of the dewaxing units.
摘要翻译： 蜡结晶粒度和群体的测定用于监测使用溶剂脱蜡的润滑油处理中使用的蜡结晶器的性能。 使用在线测量来监测蜡晶粒度。 然后使用在线监测获得的信息来控制脱蜡设备中的结晶，以优化脱蜡装置的性能。
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