Process gasoline applications

For the production of gasoline and other fuels by catalytic cracking of oils, a fluid bed reactor is used. This is a hybrid of a fixed bed and slurry phase reactor. The catalyst is fluidized as it interacts with the feed to be processed. This application is so important it... 

A refinery-compatible GC-MS instrument has been developed recently for use in on-line blending and process control applications [55]. For rapid analysis, a 10-m microbore GC column coated with 0.17- j,m film thickness of DB-5 (methyl silicone) is used. The column temperature is programmed for gasolines from 35 to 230°C and for diesel fuels from 110 to 295°C, both at 30°C/min. Typical results of this rapid on-line GC-MS analysis for gasolines, jet fuels, and diesel fuels are shown in Figure 8. 

Raw petroleum (crude oil) is extracted from underground around the globe in a variety of ways and refined for tens of thousands of applications in our everyday lives. Crude oil is refined into usable petroleum products through several unique processes. Fractional distillation is the process used to efficiently extract or "distill" products that are a mixture of chemicals such as gasoline, diesel fuel, and kerosene or may selectively extract pure chemical compounds or petrochemicals such as... 

Although cracking also occurs on chlorine-treated clays and amorphous silica-aluminas, the application of zeolites has resulted in a significant improvement in gasoline yield. The finite size of the zeolite micropores prohibits the formation of large condensed aromatic molecules. This beneficial shape-selectivity improves the carbon efficiency of the process and also the lifetime of the catalyst. 

Motors support for a long-range scientific study of the poisonous gasoline additive, tetraethyl lead. Besides trouble-shooting for various Du Pont departments, Carothers published 60 papers and was listed as the inventor or coinventor of 69 U.S. patent applications during his nine years at Du Pont. Research and development were so new to American corporations that Carothers assistants drafted and he edited patent applications for Du Pont lawyers. You were supposed to be so on top of the literature that you knew whether this was something new or not.. . . Those patents are really classical scientific papers, Hill explained. Carothers considered himself unfit to be a clerk or inventor, but he dominated Du Pont s patent application process for almost a decade. 

Improving stability of microbial strains in organic solvents is another challenge for enabling commercialization of desulfurization processes for gasoline and diesel applications. This was a target for a project in Klibanov s group [231], whose approach... 

As an example, when automotive catalytic mufflers and converters were introduced many years ago, the automobile industry required the petrochemical industry to eliminate lead from gasoline since lead degraded and reduced the effectiveness of the catalyst and caused the destruction of the gasoline. One set of industrial compounds that can harm catalysts are halogens, a family of compounds that include chlorine, bromine, iodine, and fluorine. Bromine, while not prevalent in industry, is present in chemical plants. Freons are fluorine compounds. Silicone is another compound that is deleterious to catalysts. It is used as a slip agent, or a lubricant, in many industrial processes. Phosphorous, heavy metals (zinc, lead), sulfur compounds, and any particulate can result in shortening the life of the catalyst. It is necessary to estimate the volume or the amount of each of those contaminants, to assess the viability of catalytic technologies for the application. 

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