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    • 5. 发明授权
    • Method for improving liquid yield during thermal cracking of hydrocarbons
    • 提高碳氢化合物热裂解液体产率的方法
    • US07935246B2
    • 2011-05-03
    • US12197791
    • 2008-08-25
    • Joseph L. StarkThomas FalklerJerry J. WeersMichael J. Zetlmeisl
    • Joseph L. StarkThomas FalklerJerry J. WeersMichael J. Zetlmeisl
    • C10G11/02
    • C10B57/06C10B55/00C10G9/005
    • Metal additives to hydrocarbon feed streams give improved hydrocarbon liquid yield during thermal cracking thereof. Suitable additives include metal overbases and metal dispersions and the metals suitable include, but are not necessarily limited to, magnesium, calcium, barium, strontium, aluminum, boron, zinc, silicon, cerium, titanium, zirconium, chromium, molybdenum, tungsten, and/or platinum, overbases and dispersions. Particularly useful metals include magnesium alone or magnesium together with calcium, barium, strontium, boron, zinc, silicon, cerium, titanium, zirconium, chromium, molybdenum, tungsten, and/or platinum. In one non-limiting embodiment, no added hydrogen is employed. Coker feedstocks and visbreaker feeds are particular hydrocarbon feed streams to which the method can be advantageously applied, but the technique may be used on any hydrocarbon feed that is thermally cracked.
    • 碳氢化合物进料流的金属添加剂在其热裂解期间提供了改善的烃液体产率。 合适的添加剂包括金属高碱性物和金属分散体,适合的金属包括但不限于镁,钙,钡,锶,铝,硼,锌,硅,铈,钛,锆,铬,钼,钨和 /或铂,过碱性和分散体。 特别有用的金属包括单独的镁或镁,以及钙,钡,锶,硼,锌,硅,铈,钛,锆,铬,钼,钨和/或铂。 在一个非限制性实施方案中,不使用加入的氢。 Coker原料和减粘剂进料是可以有利地应用该方法的特定烃进料流,但是该技术可以用于任何热裂化的烃进料。