Analysis of Methods of Purifying Coal Crude Benzene

2017 ◽  
Keyword(s):  
Crude Benzene

scholarly journals The central laboratory Coke Production of PJSC «ArcelorMittal Kryvyi Rih» in present-day condition.

2021 ◽  
Vol 3 (3) ◽  
pp. 38-44
Author(s):  
O.P. Chernousova ◽  
N.V. Mukina ◽  
A.Yu. Martynova
Keyword(s):  
Coke Production ◽  
State Enterprise ◽  
Laboratory Research ◽  
Analytical Control ◽  
Central Laboratory ◽  
Test Installation ◽  
Laboratory Staff ◽  
Crude Benzene ◽  
Over Time

THE CENTRAL LABORATORY OF COKE PRODUCTION AT PJSC «ARCELORMITTAL KRYVYI RIH» IN PRESENT-DAY CONDITIONS © O.P. Chernousova, N.V. Mukina (Coke Production of PJSC «ArcelorMittal Kryvyi Rih», 50095, Dnipropetrovsk region, Kryvyi Rih, Kryvorizhstal str., 1, Ukraine), A.Yu. Martynova, PhD in Technical Sciences (State Enterprise "Ukrainian State Research Coal Chemical Institute (UHIN)", 61023, Kharkov, Vesnina st., 7, Ukraine) The article discusses the scientific and methodological organization of analytical control at the coke production of PJSC "ArcelorMittal Kryvyi Rih" (CP AMKR), as well as the results of ongoing scientific and methodological measures to ensure confidence in the results of measurements carried out in the central laboratory (CL CP AMKR). Thus, the CL CP AMKR was one of the first in the industry to put into use the test installation "KARBOTEST", which allows without the involvement of third parties to carry out important laboratory research and enables the laboratory staff to quickly develop recommendations for optimizing the composition of coal charges and improving the quality of coke. The unit is designed to test the coking process of coal mixtures and certain grades of coal concentrates under temperature conditions similar to those in coke oven batteries. CL CP AMKR introduces express methods for the analysis of chemical coking products and was one of the first to introduce a refractometric method for determining the mass fraction of distillate up to 180 ° C in crude benzene. The use of this method can significantly reduce the measurement time, avoiding the cumbersome distillation procedure, and reduce the sample volume for analysis from 100 cm3 to a few drops. In order to ensure the uniformity, quality of measurements and tests, the CL on an ongoing basis takes part in interlaboratory comparative tests of almost all types of raw materials and products entering and produced by it. These are the products that are stable over time in terms of their quality indicators, for example, coal coke, as well as products whose individual indicators can change over time (crude benzene, coal tar, etc.). Keywords: measurement, quality control, coal concentrates, coke, chemical products, qualification confirmation, experimental coking, uncertainty, interlaboratory experiment, accreditation. Corresponding author A.P. Chernousova, е-mail: [email protected]

Converting Thiophene in Simulated Coking Crude Benzene to N, N-Dimethyl-2-thiophenecarboxamide by Dimethylcarbamyl Chloride Under Mild Conditions

2019 ◽  
Vol 35 (4) ◽  
pp. 674-679
Author(s):  
Xizhou Shen ◽  
Hao Song ◽  
Liuya Fang ◽  
Hang Deng ◽  
Feng Gan ◽  
...  
Keyword(s):  
Mild Conditions ◽  
Crude Benzene

scholarly journals Development and Performance Evaluation of a Computer Program Based on Neural Network Mathematical Models for Forecasting By- Product Yield

2020 ◽  
Vol 174 ◽  
pp. 03023
Author(s):  
Yelena Vasileva ◽  
Aleksandr Nevedrov ◽  
Sergey Subbotin
Keyword(s):  
Neural Network ◽  
Neural Networks ◽  
Mathematical Models ◽  
Design Method ◽  
Coal Tar ◽  
Product Yield ◽  
Production Values ◽  
And Performance ◽  
Crude Benzene ◽  
By Products

Process performance of coking plants are based on data on the yield of by-products of coking coal and their quality, therefore, much attention is paid to the issues of their analysis. In view of the complexity and insufficient knowledge of the relationship between these parameters, mathematical modeling of this dependence using neural networks is of great interest. Based on a mathematical analysis of experimental data on the quality indicators of coal, coal concentrates and the by-product yield, neural network mathematical models have been developed to forecast the parameters under study. The neural network is based on the Ward’s network. Based on the results of the research, the application “Intelligent Information System for Forecasting By-product Yield” was created, which implements neural networks [1]. The relative forecasting error for the parameter “coke” is 0.64±0.23%, “coal tar” is 19.53±5.25%, “crude benzene” is 10.02±2.83%, and “coke gas” is 5.11±1.34%. A comparative analysis of the data obtained using the developed design method is carried out, with the simulation results using existing methods, as well as with the production values of by-products yield.

Intrinsic Kinetics of Coking Crude Benzene Hydrodesulfurization on a Ti Modified Co-Mo-P/γ-Al2O3 Catalyst

2014 ◽  
Vol 665 ◽  
pp. 241-246
Author(s):  
Jun Wen Wang ◽  
Kan Zhang ◽  
Xi Ying Mao ◽  
Xue Hua Zhao ◽  
Chuan Min Ding
Keyword(s):  
Orthogonal Design ◽  
Reaction Conditions ◽  
Thiophene Hydrodesulfurization ◽  
Intrinsic Kinetics ◽  
Runge Kutta Method ◽  
Crude Benzene ◽  
Different Content ◽  
Kinetics Of ◽  
Micro Reactor ◽  
Design Experiments

With different content of thiophene in coking crude benzene, the Orthogonal design experiments of thiophene hydrodesulfurization on a Ti modified Co-Mo-P/γ-Al2O3 catalyst were carried out in a micro-reactor under the reaction conditions of 2.3~2.7MPa,275~335°C, 0.5h-1LHSV and H2/Oil 600~750. The kinetic parameters and the intrinsic kinetics were acquired by 4-order Runge-Kutta method and the modified Simplex method. The power-law type kinetic model was established and consistent with the experiment data and highly acceptable and reliable.

(111)The Composition of the Basic Oil in Crude Benzene.

1950 ◽  
Vol 53 (5) ◽  
pp. 225-227
Author(s):  
Tsugio Takeuchi ◽  
Masao Maruyama
Keyword(s):  
Crude Benzene

Energy-saving Optimization of Crude Benzol Pretreating in Hydrotreating Process

2011 ◽  
Vol 233-235 ◽  
pp. 1270-1274
Author(s):  
Qing Yuan Ma ◽  
Xu Zang ◽  
Da Li Lin
Keyword(s):  
Energy Consumption ◽  
Energy Saving ◽  
Heat Exchangers ◽  
Raw Material ◽  
Analytic Method ◽  
Available Energy ◽  
Consumption Situation ◽  
Crude Benzene

The article mainly analyses energy consumption in raw material pretreatment craft question of crude benzol hydrotreating process, with available energy analytic method. By calculating the available energy of heat exchangers and evaporators of K-K process, find the energy consumption situation during crude benzene refinement production, and then give some suggestions in Energy-saving Optimization measure.

The feeding of “Gammexane” and DDT to Bovines

1948 ◽  
Vol 39 (3) ◽  
pp. 423-434 ◽  
Author(s):  
S. G. Wilson
Keyword(s):  
East Coast ◽  
Lethal Dose ◽  
East Coast Fever ◽  
Laboratory Animals ◽  
Final Dose ◽  
Benzene Hexachloride ◽  
Series Of Experiments ◽  
The Common ◽  
Crude Benzene ◽  
Sufficient Concentration

Benzene hexachloride and DDT are relatively new insecticides and their veterinary value when administered orally to bovines has not yet been fully investigated.The first series of experiments showed that 0·5 gm./kg. on two successive days of D. 929, was toxic; 0·25 gm./kg. on two successive days followed by 0·125gm./kg. on the 3rd and 4th days was well tolerated, and the benzene hexachloride remained in the blood in sufficient concentration to kill feeding tsetse and ticks up to the 41st day. After a single dose of 0·25 gm./kg. the benzene hexachloride remained in the blood for only 10 to 12 days, and failed to protect the animal from East Coast Fever when it was grazed on heavily infested pasture.Five calves susceptible to East Coast Fever were dosed with D.929 and exposed to attack by the common tick species under African farming conditions. A dose of 0·125 gm./kg. given weekly protected a calf from East Coast Fever, but there was no protection when the same dose was given once a fortnight. A dose of 0·125 gm./kg. given weekly also protected, whereas 0·1 gm./kg. failed. At all these dosages the concentration of benzene hexachloride in the blood was sufficient to kill feeding G. palpalis during the period the calves were under treatment and for periods of 10 to 25 days after the final dose.D.929 given to animals suffering from East Coast Fever and Trypanosomiasis had no effect on the course of these diseases.Doses of 0·3 gm./kg. (39 mg./kg. gamma isomer) are toxic to young animals but older animals showed a greater tolerance. Hypersensitivity, muscular tremors, and general paralysis were the main toxic symptoms, and gross pathologicaal changes were most obvious in the liver and urinary system. The median lethal dose of benzene hexachloride given orally for calves is therefore lower than for small laboratory animals as recorded by Cameron (1945). Only crude benzene hexachloride powder (13 per cent, gamma) was used in the preserit experiments, but Slade (1945) has shown that this is markedly less toxic than the purified gamma powder.Little experimental work was done with DDT as the results with benzene hexachloride were more promising both in the control of ticks and tsetse.

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