Disperse systems as main feedstock for carbon black production

Abstract—Colloidal properties of model and actual feedstock and methods to control them in production of carbon black (CB) have been studied. The role of surface phenomena during formation of CB properties has been determined. Methods and approaches to control the concentration and size of the dispersed phase in the feedstock by external actions have been considered. Dependences of the CB quality on the colloidal properties of the raw materials have been determined. The results have been applied in industrial conditions.     

Synthesis and properties of nanosized systems as efficient catalysts for hydroconversion of heavy petroleum feedstock

The review summarizes published data on the synthesis, physicochemical properties, and activity of nanocatalysts for the hydroconversion of heavy hydrocarbon feedstocks—atmospheric and vacuum residues. New reaction systems used in the hydroconversion of heavy feedstocks—a slurry reactor and a blacking reactor—are discussed. Particular attention is given to the synthesis of promising nanocatalysts by singlelayer dispersion of powders and thermal or chemical conversion of oil- and water-soluble precursors dispersed in a hydrocarbon medium.     

催化裂化提升管内油剂两相流动特征的研究

总结了近年来催化裂化装置对提升管内油剂两相流动特征的研究成果。说明改善进料喷嘴的雾化效果,可完善裂化反应,减少焦炭等副产品的产生。     

Selective treatment of lube feedstock with furfurol using jet equipment

Results are provided for introducing an injection system for supply of lube feedstock and solvent during selective treatment with furfurol. A marked increase in the efficiency of extraction and the subsequent production stage for basic oils, i.e. deparaffinizing of raffinates, is demonstrated. Translated from Khimiya i Tekhnologiya Topliv i Masel, No. 6, pp. 14–18, November–December, 2008.     

Oxidative desulfurization of hydrocarbon feedstock

The optimum conditions for oxidative desulfurization of hydrocarbon feedstock in the presence of heterogeneous catalysts based on transition metal oxides were found. The effect of the ratio of oxides in them on the activity of the catalytic systems was demonstrated. __________ Translated from Khimiya i Tekhnologiya Topliv i Masel, No. 4, pp. 44–46, July–August, 2008.     

蒸汽裂解原料优化技术应用综述

文中阐述了蒸汽裂解原料优化技术,包括炼油化工一体化技术、蒸汽裂解原料优质化技术等.炼油化工一体化技术可明显提升乙烯生产的经济效益,蒸汽裂解原料优质化技术主要是提高乙烯收率.并结合扬子石化公司应用蒸汽裂解原料优化技术的实际情况,提出了相应的改进建议.     

Comprehensive analysis of diesel hydrotreating feedstock

Comprehensive analysis of the physicochemical properties of petroleum fractions, components of hydrotreater feedstock for manufacturing diesel fuel, was performed. Twenty two fractions, of which 14 are straight-run oil distillates, six are products of thermal and thermocatalytic processes, and two fractions represent mixed hydrogen-treatment feedstock, were studied. The fractional composition, the density, the refractive index, the sulfur content, the total concentration of aromatic hydrocarbons, and the amounts of sulfonatable compounds and aromatic hydrocarbons of different classes were determined. The group composition of sulfur compounds in feedstock sources and in the mixed hydrotreater feedstock was determined. The influence of the quality of hydrotreating feedstock on the residual sulfur content in the hydrogenation product was shown for industrial conditions.     

Au改性异构化原料预加氢催化剂

选取工业Al_2O_3载体,采用等体积浸渍法制备Pt/Al_2O_3和Pt-Au/Al_2O_3系列催化剂,对其进行了H2-TPR,HRTEM,XPS,XRD等表征,并分别采用含2%(w)苯的正己烷和含2%(w)苯、1%(w)1-己烯的正己烷溶液为模型化合物,在小型固定床加氢反应器上对所制备的系列催化剂进行加氢活性评价。表征结果显示,Pt与Au在催化剂表面形成新的Pt-Au合金簇,而Au的加入并未影响催化剂中Pt的电子性能。实验结果表明,Au的加入提高了Pt/Al_2O_3催化剂的苯加氢活性;保持Pt负载量为0.3%(w)不变,当Au含量为0.05%(w)时,Au-Pt合金存在最佳比例,催化剂加氢活性最高。     

Prospects for hydrotreating of catalytic feedstock

Experimental data on hydrotreating and cracking of vacuum gasoil on industrial catalysts are reported. Conclusions are drawn concerning the advantages of preliminary hydrotreating of the feedstock over posthydrotreating products of catalytic cracking.     

Extraction treatment of catalytic cracking feedstock

In extraction treatment of the 470°C-EP cut of heavy vacuum gasoil with a mixture of N-methylpyrrolidone and octane, the carbon residue of the gasoil decreases from 4 to 1.75 wt. %. In catalytic cracking of such treated feedstock, the relative yield of naphtha and diesel cuts increases by 10 and 37% and coking decreases by 30%.VNIIneftekhim Co. Kirishinefteorgsintez IA Ltd.Translated from Khimiya i Tekhnologiya Topliv i Masel, No. 1, pp. 19 – 21, January – February, 2005.