Operating experience with towers in production of oxidized asphalts

Grudnikov, I. B.; Fryazinov, V. V.

doi:10.1007/bf00724800

Chem Technol Fuels Oils

1978

DOI: 10.1007/bf00724800

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Operating experience with towers in production of oxidized asphalts

I. B. Grudnikov

V. V. Fryazinov

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2004

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“…Integration of the equation results in the exponential curve of the concentration of oxygen in the gas phase as a function of the bubbling bed height [70]. The shape of this curve was hypothesized previously without rigorous substantiation [65].…”

mentioning

confidence: 96%

“…A different method of assessing the suitability of crude oil for manufacture of oxidized asphalts is proposed in [15]. The total sulfur content, instead of the asphaltene and resin content, in crude oil is used as the classification parameter.…”

mentioning

confidence: 99%

“…The graphic representation in [15,20] of the established characteristics allows easily predicting the suitability (or unsuitability) of a crude for manufacture of paving asphalts and the requirements for the degree of distillation in production of vacuum resid. The yield of asphalt is estimated with the TBP of the crude oil, since it is close enough to the yield of vacuum resid.…”

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confidence: 99%

“…The results of pilot industrial tests of the oxidation tower at one OR [64] are reported in [65] in the form of the curve of the concentration of oxygen in oxidation exhaust gases as a function of the bubbling bed height: the concentration of oxygen decreases exponentially with an increase in the bed height. This type of curve was selected based on its well-known suitability for describing many phenomena in nature.…”

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Asphalt production technology. From engineering art to science

Grudnikov

Ippolitov

Grudnikova

2004

Chem Technol Fuels Oils

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In the last third of the last century, important progress was made in developing the scientific basis for oxidized asphalt production technology. The classification of crude oils and mathematical model developed allow quantitatively predicting the basic parameters of asphalt production based on vacuum distillation and oxidation process using the reference properties of the crude oil. Key words: oxidized asphalt, prediction, classification of crude oils, mathematical model.The evolution of technology for production of any product usually passes through the stage of engineering art where decision-making is based on separate facts and is heuristic in character. Gradual accumulation of knowledge leads to generalizations that allow making decisions based on rigorous calculations. This collected knowledge, which allows quantitatively predicting the basic parameters of product production technology, can be called science.The results of development of domestic asphalt production technology, more precisely, its material implementation, over the last third of the 20 th century were generalized previously in [1]. The reasons for selecting this period of time were discussed there. The present article concerns the development of scientific views in asphalt technology in the same time period. We first analyzed the reviews in monographs published in the mainstream press and articles in the journals Khimiya i Tekhnologiya Topliv i Masel [Chemistry and Technology of Fuels and Oils] and Neftepererabotka i Neftekhimiya [Oil Refining and Petrochemistry] , since the most important events and facts would be reflected on the pages of these publications. We focused most attention on the developments that markedly influenced the development of the prognostic basis of the technology and thus confirmed the right to call it scientific. Many publications that do not consider approaches to the quantitative prediction of some parameters of a technology are not discussed based on the same criterion. Perhaps enough time has not yet passed for a reliable evaluation of such publications.The area of application of asphalts is primarily determined by their consistency. Determination of the degree of softness of asphalts is based on methods of testing that determine arbitrary characteristics; ductility, i.e., the capacity to be drawn into a thread; softening point; penetration, i.e., the depth of needle penetration in asphalt [2, 3].Such tests, although conducted by methods generally accepted in world practice, do not essentially differ from the methods of assessing quality used at the dawn of asphalt production -for example, by pressing with a fingernail.

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confidence: 96%

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confidence: 99%

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confidence: 99%

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confidence: 99%

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Asphalt production technology. From engineering art to science

Grudnikov

Ippolitov

Grudnikova

2004

Chem Technol Fuels Oils

Self Cite

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Operating experience with towers in production of oxidized asphalts

Cited by 1 publication

References 0 publications

Asphalt production technology. From engineering art to science

Asphalt production technology. From engineering art to science

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