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    • 2. 发明授权
    • Hydrocarbon gas processing for rich gas streams
    • 富气气体的烃气处理
    • US07316127B2
    • 2008-01-08
    • US11102947
    • 2005-04-11
    • Robert R. HuebelJorge H. FogliettaSanjiv N. Patel
    • Robert R. HuebelJorge H. FogliettaSanjiv N. Patel
    • F25J3/00
    • C07C7/09F25J3/0209F25J3/0219F25J3/0233F25J3/0238F25J2200/08F25J2200/70F25J2200/76F25J2200/78F25J2210/06F25J2210/12F25J2270/04
    • A process for the recovery of ethane and heavier hydrocarbon components from a hydrocarbon feed gas stream. Feed gas stream is cooled into a first and second cooled streams. First and second cooled streams are sent to a cold absorber and separated into a first gas stream and a first liquid stream. First gas stream is expanded and sent to a fractionation tower. At least a part of the first liquid stream is sent to a pre-demethanizer stripper tower. Stripper tower produces a stripper overhead stream and a stripper bottoms stream. Stripper overhead vapor stream is cooled and sent to the fractionation tower as second reflux stream. Stripper bottoms stream is supplied to the fractionation tower. Temperatures and pressures of the streams and columns are maintained to recover a major portion of ethane and heavier hydrocarbon components as a bottoms product stream, and produce a residue gas stream at the fractionation tower overhead. At least a portion of the residue gas stream is recycled, cooled and sent to the fractionation tower as first reflux stream.
    • 一种从烃进料气流中回收乙烷和较重烃组分的方法。 进料气流被冷却成第一和第二冷却流。 将第一和第二冷却流送至冷吸收器并分离成第一气流和第一液流。 将第一气流膨胀并送入分馏塔。 第一液体流的至少一部分被送到脱甲烷塔脱气塔。 汽提塔产生汽提塔塔顶馏出物和汽提塔底部物流。 汽提器塔顶蒸气流被冷却并作为第二回流流送到分馏塔。 汽提塔底部料流被提供给分馏塔。 维持流和塔的温度和压力以回收大部分乙烷和较重的烃组分作为塔底产物流,并在分馏塔顶部产生残余气流。 残余气流的至少一部分被再循环,冷却并作为第一回流流送入分馏塔。
    • 5. 发明授权
    • Production of propylene from steam cracking of hydrocarbons, particularly ethane
    • 从烃类特别是乙烷的蒸汽裂解生产丙烯
    • US07223895B2
    • 2007-05-29
    • US10716232
    • 2003-11-18
    • Charles Sumner
    • Charles Sumner
    • C07C6/02
    • C10G9/06C07C6/04C07C11/06Y02P30/44
    • An ethane or other hydrocarbon feedstock is steam cracked to produce an ethylene stream which is processed in an ethylene plant recovery section to separate an ethane recycle and a polymer grade or chemical grade ethylene product stream. A portion of the ethylene product stream may then be reacted by dimerization to produce a butene stream. These formed butenes and/or butenes recovered from other sources and another portion of the ethylene product stream are reacted by metathesis to produce a propylene stream which is deethanized and separated from heavier hydrocarbons to produce the propylene product. The butene product stream may also be deethanized and is separated from heavier hydrocarbons. The overhead from the metathesis section deethanizer may be recycled to the ethylene plant recovery section. The reflux for the metathesis section deethanizer may be generated from the overhead or may be a portion of the ethylene product stream.
    • 乙烷或其他烃原料蒸汽裂化以产生乙烯料流,其在乙烯装置回收段中加工以分离乙烷再循环和聚合物级或化学级乙烯产物流。 然后可以通过二聚反应将一部分乙烯产物流反应以产生丁烯流。 从其他来源回收的这些形成的丁烯和/或丁烯和乙烯产物流的另一部分通过复分解反应以产生丙烯料流,该丙烯料流与较重的烃脱乙基化并分离以产生丙烯产物。 丁烯产物流也可以脱乙烷并与较重的烃分离。 来自复分解段脱乙烷器的塔顶馏出物可以再循环到乙烯装置回收部分。 复分解段脱乙烷器的回流可以从塔顶产生,也可以是乙烯产物流的一部分。