Components of Gasoline Produced by Catalytic Cracking

Glasgow, Augustus R.; Willingham, Charles B.; Rossini, Frederick D.

doi:10.1021/ie50478a053

Cited by 7 publications

(5 citation statements)

References 7 publications

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“…The change of pH on dilution of a solution of a strong acid or strong base with or without added strong salt is caused by changes in the concentrations of ions and changes in activity coefficients. The former are readily expressed in terms of two functions, g and D (7) g = c0 -cj; D = cscoh (5) In these expressions, c" and a are, respectively, the normal concentrations of strong acid and base. The changes in activity coefficients are determined primarily by the alteration of the…”

Section: Calculation Of Dilution Valuesmentioning

confidence: 99%

“…Further data are presented to show the average weight per cent of aromatic rings in each of the molecular types found in the gas oil and cycle oil. SATISFACTORY methods of determining hydrocarbon types in petroleum fractions in the gasoline range have been developed and used for some time (5). However, it has become increasingly important in the development of petroleum refining processes to learn more about the composition of higher boiling materials such as gas and cycle oils.…”

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confidence: 99%

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Analysis of Gas Oil and Cycle Stock from Catalytic Cracking

Charlet¹,

Lanneau²,

Johnson³

1954

Anal. Chem.

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Section: Calculation Of Dilution Valuesmentioning

confidence: 99%

mentioning

confidence: 99%

Analysis of Gas Oil and Cycle Stock from Catalytic Cracking

Charlet¹,

Lanneau²,

Johnson³

1954

Anal. Chem.

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“…The position of substituents in cycloparaffins is indicated in Table V, showing that in disubstitution the 1,3-position is favored whereas 1,2,4-substitution predominates among the trisubstituted compounds. A comparison was made of the data with those published on an East Texas virgin naphtha (Z) and a naphtha from fixed-bed catalytic cracking (5). In Table VI it is seen that for both catalytic naphthas monomethyl chains predominate over normal chains by five to one while the straight-run naphtha show's nearly equal amounts of monomethyl and normal chains.…”

Section: Of Resultsmentioning

confidence: 89%

Composition of Naphtha from Fluid Catalytic Cracking

Melpolder¹,

Brown²,

Young³

et al. 1952

Ind. Eng. Chem.

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UTILIZATIONof the newer physical methods during recent years has made available to petroleum technologists a large amount of long sought information on the composition of petroleum and its many products. This information has been invaluable to both the petroleum process chemist and those interested in the chemical utilization of petroleum, but as yet only a fraction of it has found its way into the technical literature. A recent article employs these new techniques for resolving the composition of straight-run naphtha (1) and some work has been published on the composition of naphtha from catalytic cracking wherein the analysis was made by hydrocarbon type alone (9, 10). Comparisons were made between the composition of virgin, thermal, and catalytic naphthas as determined by a wide selection of physical,

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“…Previous analyses (1,4) of catalytic gasolines from Houdry fixed bed units had not revealed the presence of cyclic olefins. In general, olefins were determined by bromine number, chromatographic analysis using silica gel, or other chemical tests which were incapable of differentiation between olefins and cyclic olefins.…”

Section: Composition Of Gasolinementioning

confidence: 90%

Characteristics of a Houdresid Gasoline.

Smith¹,

Schortmann²,

Mills³

1958

Ind. Eng. Chem. Chem. Eng. Data Series

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T h e conversion of residuum materials t o gasoline and fuel oils h a s assumed increased importance with the development and commercial operation of the Houdresid process. Houdresid operation catalytically cracks residua to high quality gasoline and distillate products. Characteristically, residual stocks contain higher quantities of condensed ring hydrocarbons than distillate stocks generally charged to catalytic cracking. Detailed analyses have therefore been performed to determine the chemical composition of a gasoline from Houdresid operation.Relationships have been established between gasoline composition and product quality. For refinery operations, the comparison of Houdresid and Houdriflow gasolines is significant.Analyses for hydrocarbon types became feasible through the combined techniques of silica gel adsorption and mass spectrographic analysis. Where possible, additional and more detailed t e s t s have been used to corroborate the data o b t a i y d by such direct analyses.Extensive u s e has been made of silica gel analysis by other workers in the field. Bates and others (1) utilized it t o analyze thermal and catalytic gasolines with regard to paraffin, naphthene, olefin, and aromatic content. Rossini and others (4) used it in conjunction with extensive distillation t o obtain the hydrocarbon type composition and also detailed data about the occurrence of specific paraffins and naphthenes. Neither of these groups attempted to differentiate among olefin types. In 1949, Rampton (6) effected olefin skeletal analysis by using the conventional silica gel adsorption technique in conjunction with mild hydrogenation. Although information is not available concerning the source of the catalytic gasoline which h e studied, the summary data are presented below.

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Components of Gasoline Produced by Catalytic Cracking

Cited by 7 publications

References 7 publications

Analysis of Gas Oil and Cycle Stock from Catalytic Cracking

Analysis of Gas Oil and Cycle Stock from Catalytic Cracking

Composition of Naphtha from Fluid Catalytic Cracking

Characteristics of a Houdresid Gasoline.

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