Abstract: The present invention relates to a new and integrated process involving the utilization of a primary adsorption bed containing a regenerable, physical adsorbent and an auxiliary sorption bed containing a chemisorbent for the removal of sulfur compounds from a fluid stream, which process provides for higher yields, higher purity and lower costs. A system for removing sulfur compounds in accordance with the above process is also disclosed.

Abstract: The present invention relates to a chemical process involving a processing step which is sensitive to the presence of at least one component contained within the stream to be processed and to an economical and efficient method of temporarily removing such deleterious component from the stream so as to have the deleterious component by-pass the step which is sensitive to this component using an adsorbent for such removal wherein the adsorbent is regenerated by the product effluent stream leaving the sensitive processing step.

Abstract: The present invention relates to a chemical process involving a processing step which is sensitive to the presence of at least one component contained within the stream to be processed. In particular, the present invention relates to an economical and efficient method of integrating the means for removing the deleterious component with the sensitive processing step by the use of a sorbent which is capable of removing the at least one deleterious component at sorption conditions which enables the stream to be in the vapor phase for subsequent introduction to the sensitive processing step which is also carried out in the vapor phase. Most preferably, the sorption conditions are substantially the same as the conditions within the sensitive processing step.

Abstract: The present invention relates to a new and integrated process involving the utilization of a primary adsorption bed containing a regenerable, physical absorbent and an auxiliary sorption bed containing a chemisorbent and an optional physical absorbent for the removal of sulfur compounds and water from a fluid stream, which process provides for higher yields, higher purity and lower costs.

Abstract: Silicon components are removed from a hydrocarbon stream by contacting the stream with a sorbent comprising a mixture of a copper component and a porous, inorganic refractory oxide containing alumina. Preferably, the porous, inorganic refractory oxide will contain greater than about 10 weight percent alumina and most preferably consists essentially of alumina. It is normally desired to contact the hydrocarbon stream with the sorbent in the presence of molecular hydrogen in order to prevent coking of the sorbent. The sorbent may be a fresh mixture of the copper component and the porous, inorganic refractory oxide or it may be a spent sorbent prepared by using the fresh sorbent to remove sulfur components from a hydrocarbon stream. Alternatively, the sorbent may be a regenerated sorbent prepared by burning carbonaceous residues off a sorbent that was previously used to remove sulfur components from a hydrocarbon stream.

Abstract: A major portion, preferably a substantial portion, of the coke precursors may be removed from atmospheric and vacuum resids having a Conradson carbon residue of at least about 10 wt. % by selectively removing the components of said feedstock which have an overall Hildebrand solubility parameter greater than 9.0 and a complexing solubility parameter greater than 1.3, such that there results a coke precursor rich fraction containing components having the requisite solubility parameters and a coke precursor depleted fraction. Each fraction may then be processed separately. Segregation of coke precursors by removing the components having the requisite solubility parameters also results in an enhanced yield of useable liquid hydrocarbons relative to that obtained using conventional separation processes.

Abstract: Contaminants such as petroleum sulfonates, anticorrosion amines, and silicone oils are removed from a contaminated feedstock stream by contacting said feedstock stream with an adsorbent comprising bauxite. In a further aspect, a thus purified petroleum feedstock stream is hydrodesulfurized.

Abstract: A gasoline boiling range hydrocarbon stream obtained by fractionation of overhead vapors from a delayed coker is treated for removal of organic silicon compounds prior to being processed in a desulfurizer and catalytic reformer. The stream is treated by a bed of material such as alumina, activated alumina or spent alumina-based desulfurizer catalyst at elevated temperature to reduce the level of organic silicon compounds. The organic silicon compounds, if not removed, are detrimental to desulfurizer and reformer catalysts. The organic silicon compounds are conventionally added to a delayed coker to control foaming.