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1. 发明授权

US4793913A Method for liquid feed dispersion in fluid catalytic cracking systems 失效
标题翻译：流体催化裂化系统中液体进料分散的方法
公开(公告)号：US4793913A
公开(公告)日：1988-12-27
申请号：US813152
申请日：1985-12-24
申请人： Donald O. Chessmore , Frederick A. Pettersen
发明人： Donald O. Chessmore , Frederick A. Pettersen
IPC分类号： B01J8/08 , C10G11/18 , C10G11/00 , C10G35/00
CPC分类号： C10G11/18 , B01J8/085
摘要： An improved liquid hydrocarbon feed method is disclosed wherein substantially all of the liquid is converted to mist sized particles over a wide angled dispersion pattern without a concurrent shroud of steam or water. Such dispersion promotes vapor phase catalytic reaction between hydrocarbon vapors and fluidized catalyst in a reaction time of 1 to 3 seconds. The misting nozzle is characterized by a swirl chamber to which the full hydrocarbon feed, with or without steam included in the feed, is supplied for centrifugal rotation by vane members to form a free vortex. The flow is then released through a reduced area square-edge orifice having a short throat to form and maintain a characteristic "vena contrata" from such an orifice during flow into the catalyst stream in the riser reactor for dispersion over a wide angled conical dispersion pattern. Such flow from the orifice allows the nozzle to be recessed out of the flowing catalyst stream. This keeps the nozzle cooler and minimizes mechanical erosion of the nozzle by the flowing, heated catalyst, without use of two phase nozzles to separately add steam or water. However, if desired steam may be used as a portion of the single fluid flow from the nozzle to reduce partial pressure of the vaporizing hydrocarbon feed. In a preferred form, the liquid feed is introduced into the transition section of a riser reactor.
摘要翻译：公开了一种改进的液体烃进料方法，其中基本上所有的液体在宽角度的分散图案上转化成雾化尺寸的颗粒，而没有蒸汽或水的同时的罩。这种分散促进烃蒸气和流化催化剂之间的气相催化反应，反应时间为1至3秒。雾化喷嘴的特征在于一个涡流室，进料中包含或不含有蒸汽的全烃进料被供应用于叶片构件的离心旋转以形成自由涡流。然后通过具有短喉部的减小面积的方形边缘孔释放流动，以在流入提升管反应器中的催化剂流中时从这种孔口形成并保持特征性“再生”，以在宽角锥形分散图案上分散。来自孔口的这种流动允许喷嘴从流动的催化剂流中凹入。这样可以使喷嘴更冷却，并且通过流动的加热催化剂使喷嘴的机械腐蚀最小化，而不使用两相喷嘴分别加入蒸汽或水。然而，如果需要，蒸汽可以用作来自喷嘴的单一流体流的一部分，以减少汽化烃进料的分压。在优选的形式中，液体进料被引入提升管反应器的过渡部分。

2. 发明授权

US4948568A Method and apparatus for liquid feed dispersion in fluid catalytic cracking systems 失效
标题翻译：流体催化裂化系统中液体进料分散体的方法和装置
公开(公告)号：US4948568A
公开(公告)日：1990-08-14
申请号：US289323
申请日：1988-12-23
申请人： Donald O. Chessmore , Frederick A. Pettersen
发明人： Donald O. Chessmore , Frederick A. Pettersen
IPC分类号： B01J8/08 , C10G11/18
CPC分类号： B01J8/085 , C10G11/18
摘要： An improved liquid hydrocarbon feed method is disclosed wherein substantially all of the liquid is converted to mist sized particles over a wide angled dispersion pattern without a concurrent shroud of steam or water. Such dispersion promotes vapor phase catalytic reaction between hydrocarbon vapors and fluidized catalyst in a reaction time of 1 to 3 seconds. The misting nozzle is characterized by a swirl chamber to which the full hydrocarbon feed, with or without steam included in the feed, is supplied for centrifugal rotation by vane members to form a free vortex. The flow is then released through a reduced area square-edge orifice having a short throat to form and maintain a characteristic "vena contrata" from such an orifice during flow into the catalyst stream in the riser reactor for dispersion over a wide angled conical dispersion pattern. Such flow from the orifice allows the nozzle to be recessed out of the flowing catalyst stream. This keeps the nozzle cooler and minimizes mechanical erosion of the nozzle by the flowing, heated catalyst, without use of two phase nozzles to separately add steam or water. However, if desired steam may be used as a portion of the single fluid flow from the nozzle to reduce partial pressure of the vaporizing hydrocarbon feed. In a preferred form, the liquid feed is introduced into the transition section of a riser reactor.
摘要翻译：公开了一种改进的液体烃进料方法，其中基本上所有的液体在宽角度的分散图案上转化成雾化尺寸的颗粒，而没有蒸汽或水的同时的罩。这种分散促进烃蒸气和流化催化剂之间的气相催化反应，反应时间为1至3秒。雾化喷嘴的特征在于一个涡流室，进料中包含或不含有蒸汽的全烃进料被供应用于叶片构件的离心旋转以形成自由涡流。然后通过具有短喉部的减小面积的方形边缘孔释放流动，以在流入提升管反应器中的催化剂流中时从这种孔口形成并保持特征性“再生”，以在宽角锥形分散图案上分散。来自孔口的这种流动允许喷嘴从流动的催化剂流中凹入。这样可以使喷嘴更冷却，并且通过流动的加热催化剂使喷嘴的机械腐蚀最小化，而不使用两相喷嘴分别加入蒸汽或水。然而，如果需要，蒸汽可以用作来自喷嘴的单一流体流的一部分，以减少汽化烃进料的分压。在优选的形式中，液体进料被引入提升管反应器的过渡部分。

3. 发明授权

US4199435A NO.sub.x Control in cracking catalyst regeneration 失效
标题翻译：裂化催化剂再生中的NOx控制
公开(公告)号：US4199435A
公开(公告)日：1980-04-22
申请号：US965979
申请日：1978-12-04
申请人： Donald O. Chessmore , Charles E. Rudy, Jr.
发明人： Donald O. Chessmore , Charles E. Rudy, Jr.
IPC分类号： C10G11/18 , C10G11/04 , B01J8/24 , B01J23/94
CPC分类号： C10G11/18
摘要： The amount of NO.sub.x formed during regeneration of a cracking catalyst in the presence of a metallic carbon monoxide combustion catalyst is decreased without substantially adversely affecting the carbon monoxide combustion activity of the promoter by subjecting the combustion-promoting catalyst to steam treatment prior to employing it in the cracking catalyst regeneration operation.
摘要翻译：在金属一氧化碳燃烧催化剂的存在下，在裂化催化剂再生期间形成的NOx的量减少，而基本上不利地影响助催化剂的一氧化碳燃烧活性，因为在将燃烧促进催化剂用于蒸汽处理之前，裂化催化剂再生操作。

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