Abstract:
A reaction system and method for removing heteroatoms from oxidized-heteroatom-containing hydrocarbon streams and products derived therefrom are disclosed. An oxidized-heteroatom-containing hydrocarbon feed is reacted in a reaction system thereby forming non-ionic hydrocarbon products. The products derived therefrom are useful as transportation fuels, lubricants, refinery intermediates, or refinery feeds.
Abstract:
A method of upgrading a heteroatom-containing hydrocarbon feed by removing oxidized-heteroatom contaminants is disclosed. The method includes contacting the oxidized-heteroatom-containing hydrocarbon feed with a caustic and a selectivity promoter, and removing the heteroatom contaminants from the heteroatom-containing hydrocarbon feed.
Abstract:
A reaction system and method for removing heteroatoms from oxidized-heteroatom-containing hydrocarbon streams and products derived therefrom are disclosed. An oxidized-heteroatom-containing hydrocarbon feed is reacted in a reaction system thereby forming non-ionic hydrocarbon products. The products derived therefrom are useful as transportation fuels, lubricants, refinery intermediates, or refinery feeds.
Abstract:
A method of upgrading a heteroatom-containing hydrocarbon feed by removing heteroatom contaminants is disclosed. The method includes contacting the heteroatom-containing hydrocarbon feed with an oxidant to oxidize the heteroatoms, contacting the oxidized-heteroatom-containing hydrocarbon feed with caustic and a selectivity promoter, and removing the heteroatom contaminants from the heteroatom-containing hydrocarbon feed. The oxidant may be used in the presence of a catalyst.
Abstract:
Refractory or hard sulfur found in a hydrocarbon stream containing refractory sulfur heterocycle compounds, particularly those exhibiting steric hindrance, is removed from the stream by contacting it with a sodium reagent comprising a sodium component, having free sodium, supported on a solid support component. If the hydrocarbon stream contains more labile or easy sulfur, then it is treated, typically by hydrodesulfurization, to remove at least most of the labile sulfur before it is contacted with the sodium reagent. This is useful for bringing the sulfur level of middle distillate fuel streams, such as diesel and jet fuel fractions, down to a level of less than about 10 wppm, employing conventional hydrodesulfurizing catalysts and conditions.
Abstract:
This invention is a method for reducing the total acid number of organic acid containing petroleum oil comprising forming a water-in-oil emulsion comprising an aqueous Group IIA metal hydroxide solution or slurry in a hydrocarbon oil, said water-in-oil emulsion having an aqueous droplet particle size diameter of from 1 to 25μ, adding the water-in-oil emulsion to the organic acid containing petroleum oil and permitting the mixture to stand for a time sufficient to permit the neutralization of the organic acids in the petroleum oil.
Abstract:
A method for upgrading an oil stream containing naphthenic acid and sulfur contaminants is described. In this method, an oil stream with naphthenic acid and sulfur contaminants is upgraded by the following steps. First, the oil stream is mixed with an alkaline earth metal oxide in an amount effective to convert substantially all of the naphthenic acid contaminants to non-acidic compounds and alkaline earth metal carbonate and also to convert substantially all of the sulfur contaminants to alkaline earth metal sulfide. Then, the mixture is heated under a pressure sufficient to prevent vaporization of the mixture to a temperature sufficient and for a time sufficient to react the naphthenic acid contaminants with the alkaline earth oxide to form the corresponding non-acidic compounds and alkaline earth carbonates. In the meantime, substantially all of the sulfur contaminants react with the alkaline earth oxide to form the alkaline earth sulfide. After the desired reaction is complete, the alkaline earth carbonate and the alkaline earth sulfide is separated from the oil stream. Upgraded oil is thus obtained.
Abstract:
Acidic halides, especially chlorides, in two phase (vapor and hydrocarbon liquid) reactor effluent are separated and at least the halides in the vapor fraction neutralized in a vapor/liquid separator with an alkaline neutralization medium such as an alumina treater impregnated with NaOH. The treater may remove halides from both the vapor and liquid phase within the separator.
Abstract:
A process for the chlorination of hydrocarbons wherein the production of the chlorinated hydrocarbon is accelerated by carrying out such chlorination in the presence of sodium sulfide. The presence of sodium sulfide leads to the production of the chlorinated hydrocarbon, hydrogen sulfide, and sodium chloride as products. The sodium sulfide is preferably that produced in the desulfurization of petroleum fractions utilizing metallic sodium. This application is a continuation-in-part of application Ser. No. 735,397, filed June 7, 1968, now U.S. Pat. No. 365792. The present invention is directed to the improved process for the chlorination of hydrocarbons; more particularly, the present invention is directed to an improved process for the chlorination of aliphatic and aromatic hydrocarbons wherein such chlorination is carried out in the presence of sodium sulfide. Various processes are known for the chlorination of hydrocarbons, specifically aliphatic and aromatic hydrocarbons so as to produce a mono- and di-chlorinated product. Most of these processes involve the reaction of chlorine with the aliphatic or aromatic hydrocarbon. While various catalysts have been known for accelerating amd promoting of the chlorination reaction, many processes developed heretofore have been found to have various deficiencies. In this regard, for example, acceleration of the chlorination reaction to a point of maximum conversion to the mono- or di-chlorinated hydrocarbon has always been lacking. In accordance with the present invention, however, a process has been discovered whereby it is possible to chlorinate aliphatic and aromatic hydrocarbons so as to produce the mono- and di-chlorinated product in a manner eliminating the various drawbacks of previously developed processes. Such improvements in accordance with the present invention involve carrying out the chlorination of an aliphatic or aromatic hydrocarbon with chlorine at a temperature of from about 20* to 150*C. wherein the process is conducted in the presence of sodium sulfide. It is hypothesized in accordance with the present invention that the presence of sodium sulfide in the chlorination reaction accelerates and promotes the production of the chlorinated hydrocarbon by providing for the production of stable products in addition thereto, i.e., sodium chloride and hydrogen sulfide. In this way the reaction is accelerated toward the production of the desired mono- or di-chlorinated hydrocarbon. Accordingly, it is a principle object of the present invention to provide a process for the chlorination of hydrocarbons wherein such process eliminates the inherent disadvantages and deficiencies of heretofore proposed processes. It is a further object of the present invention to provide such a process for the chlorination of hydrocarbons wherein such process is improved by the presence of sodium sulfide in the chlorination reaction. A still further object of the present invention relates to the process for the chlorination of aliphatic and aromatic hydrocarbons with chlorine at a temperature of 20* to 150*C., such process being characterized by the presence of sodium sulfide. Yet a further object of the present invention relates to an improved process for the chlorination of aliphatic anD aromatic hydrocarbons with chlorine wherein such process is carried out in the presence of sodium sulfide derived from the desulfurization of petroleum factions with metallic sodium. Still further objects and advantages of the novel process of the present invention will become more apparent from the following, more detailed description thereof. The foregoing objects and advantages of the present invention are achieved by carrying out the chlorination of hydrocarbons, e.g., aliphatic or aromatic hydrocarbons, in the presence of sodium sulfide. Thus, for example, the process of the present invention can be described by the following equation: