摘要:
The process relates to the use of any naphtha-range stream containing a portion of C8+ aromatics combined with benzene, toluene, and other non-aromatics in the same boiling range to produce toluene. By feeding the A8+ containing stream to a dealkylation/transalkylation/cracking reactor to increase the concentration of toluene in the stream, a more suitable feedstock for the methylation reaction can be produced. This stream can be obtained from a variety of sources, including the pygas stream from a steam cracker, “cat naphtha” from a fluid catalytic cracker, or the heavier portion of reformate.
摘要:
The process relates to the use of any naphtha-range stream containing a portion of C8+ aromatics combined with benzene, toluene, and other non-aromatics in the same boiling range to produce toluene. By feeding the A8+ containing stream to a dealkylation/transalkylation/cracking reactor to increase the concentration of toluene in the stream, a more suitable feedstock for the methylation reaction can be produced. This stream can be obtained from a variety of sources, including the pygas stream from a steam cracker, “cat naphtha” from a fluid catalytic cracker, or the heavier portion of reformate.
摘要:
A hydrocarbon conversion process for producing an aromatics product containing of benzene, toluene, xylenes, or mixtures thereof. The process is carried out by converting precursors of benzene, toluene, and xylenes that are contained in a hydrocarbon feed (C6+ non-aromatic cyclic hydrocarbons, A8+ single-ring aromatic hydrocarbons having at least one alkyl group containing two or more carbon atoms; and A9+ single-ring aromatic hydrocarbons having at least three methyl groups) to produce a product that contains an increased amount of benzene, toluene, xylenes, or combinations thereof compared to said hydrocarbon feed.
摘要翻译:一种用于生产含苯,甲苯,二甲苯或其混合物的芳族化合物产物的烃转化方法。 该方法通过将烃原料(C 6+非芳族环状烃,A 8+单体)中包含的苯,甲苯和二甲苯的前体转化 具有至少一个含有两个或更多个碳原子的烷基的芳族烃;以及具有至少三个甲基的A 9 N +单环芳族烃),以产生含有增加量的 苯,甲苯,二甲苯或其组合与所述烃进料相比。
摘要:
A hydrocarbon conversion process for producing an aromatics product containing of benzene, toluene, xylenes, or mixtures thereof. The process is carried out by converting precursors of benzene, toluene, and xylenes that are contained in a hydrocarbon feed (C6+ non-aromatic cyclic hydrocarbons, A8+ single-ring aromatic hydrocarbons having at least one alkyl group containing two or more carbon atoms; and A9+ single-ring aromatic hydrocarbons having at least three methyl groups) to produce a product that contains an increased amount of benzene, toluene, xylenes, or combinations thereof compared to said hydrocarbon feed.
摘要:
The invention is a process for removing impurities from an aromatics stream and apparatus for the practice thereof, whereby trace olefins and dienes are removed from aromatic plant feedstocks using a reactor design that enables the product to be backmixed with the feedstock and that enables a feed/effluent heat exchanger.
摘要:
The invention concerns integration of hydroprocessing and steam cracking. A feed comprising crude or resid-containing fraction thereof is severely hydrotreated and passed to a steam cracker to obtain an olefins product.
摘要:
The invention relates to a hydroprocessed product that can be produced by hydroprocessing tar, such as a tar obtained from hydrocarbon pyrolysis. The invention also relates to methods for producing such a hydroprocessed product, and the use of such a product, e.g., as a fuel oil blending component.
摘要:
This invention relates to a process and system for cracking hydrocarbon feedstock containing vacuum resid comprising: (a) subjecting a vacuum resid to a first thermal conversion in a thermal conversion reactor (such as delayed coker, fluid coker, Flexicoker™, visbreaker and catalytic hydrovisbreaker) where at least 30 wt % of the vacuum resid is converted to material boiling below 1050° F. (566° C.); (b) introducing said thermally converted resid to a vapor/liquid separator, said separator being integrated into a steam cracking furnace, to form a vapor phase and liquid phase; (c) passing said vapor phase to the radiant furnace in said steam cracking furnace; and (d) recovering at least 30 wt % olefins from the material exiting the radiant furnace (based upon the weight of the total hydrocarbon material exiting the radiant furnace).
摘要:
This invention relates to an ultrafiltration process for separating a heavy hydrocarbon stream to produce an enriched saturates content stream(s) utilizing an ultrafiltration separations process. The enriched saturates content streams can then be further processed in refinery and petrochemical processes that will benefit from the higher content of saturated hydrocarbons produced from this separations process. The invention may be utilized to separate heavy hydrocarbon feedstreams, such as whole crudes, topped crudes, synthetic crude blends, shale oils, oils derived from bitumen, oils derived from tar sands, atmospheric resids, vacuum resids, or other heavy hydrocarbon streams into enriched saturates content product streams. The invention provides an economical method for separating heavy hydrocarbon stream components by molecular species instead of molecular boiling points.
摘要:
A process for reducing the Bromine Index of a hydrocarbon feed containing bromine-reactive contaminants that has improved cycle length and utilizes a crystalline molecular sieve catalyst. The process is carried out by contacting the hydrocarbon feed under conversion conditions with a catalyst shaped in the form of an elongated aggregate comprising a crystalline molecular sieve having a MWW or *BEA framework type. The shortest cross-sectional dimension of the elongated aggregate is less about 1/10 inch (2.54 millimeters).