丁二烯是石脑油和瓦斯油的蒸汽裂解的副产物。
Butadiene is found as a byproduct in the steam cracking of naphtha and gas oil to make ethylene and propylene.
生产这种不饱和烃类最重要的路线是靠蒸汽裂解，主要以石油气体和石脑油作原料。
The most important route to produce these unsaturated hydrocarbons is by steam cracking, using principally petroleum gases or naphtha as feedstock.
在实验室中研究了一种从石油残渣油制取建筑沥青的新工艺——水蒸汽裂解缩合。
A new process for producing roofing asphalt from petroleum residua by steam cracking and condensation has been studied in the laboratory.
利用蒸汽裂解和炼油工艺的碳四和碳五馏分生产丙烯是增产丙烯的一条重要途径。
Technologies for propylene production by using C4 and C5 fractions as feedstock coming from steam cracker and refineries are reviewed.
石脑油作为蒸汽裂解工艺的主要原料，其性质直接影响裂解主要产品收率和裂解炉操作周期。
Naphtha is the main feedstock for steam cracking process, therefore its property directly influences the yields of main cracking products and the operation cycle of cracking furnace.
以大豆油、芝麻油和花生油为原料，考察了植物油的脂肪酸组成对蒸汽裂解反应结果的影响。
The effect of composition of aliphatic acid part is studied with soybean oil, sesame oil and peanut oil as feeds.
丙烯、乙烯是重要的基本有机化工原料，且二者的市场需求日益旺盛，其主要来源是蒸汽裂解装置。
Propylene and ethylene are the major raw chemical materials for organic chemical industry, which are mainly derived from hydrocarbon steam cracking process.
脱附油作为蒸汽裂解制乙烯原料，与凝析油相比，在相同的工艺条件下乙烯收率可提高6.5个百分点。
As the steam cracking feedstocks, the ethylene yield of the desorption oil increased 6.5 percentage compared to the condensate oil in the similar conditions.
蒸汽裂解试验显示尾油馏分是很好的蒸汽裂解制乙烯原料，其乙烯收率较大庆ago高2 ~ 3个百分点。
The unconverted oil was a good feedstock for steam cracking and its ethylene yield was 2%-3% higher than that of Daqing AGO feedstock.
分析了世界乙烯工业的发展趋势，介绍了管式炉蒸汽裂解制乙烯技术的进展状况，以及各种乙烯生产新技术的研究进展情况。
Developing trend of world ethylene industry was analyzed. Recent development of steam cracking and progress of other new ethylene technologies were introduced.
文中列举了裂解原料与稀释蒸汽中主要杂质的允许值及其危害，并给出了具体的控制手段。
This paper illustrates the allowance and hazard of the main impurities in cracking feedstock and diluting steam, and provides specific control methods.
在采油生产中已成功推广了振动解堵、酸化压裂解堵、注蒸汽、注水等增产技术。
Vibration blocking removal technologies, acid fracturing technique, steam injection, water injection were generalized successfully in oil recovery process.
在裂解原料或稀释蒸汽中添加结焦抑制剂是目前延长装置运转周期较为有效的方法之一。
Adding coking inhibitor to the dilute steam or cracked raw materials is one of the effective methods to lengthen unit-operating cycle at present.
提出了乙烷与水蒸汽转化反应的新化学计量方程序，对已有的反应机理作了补充，指出甲烷同系物的水蒸汽转化与其加氢裂解反应的相似本质。
A new chemical equation for the reaction of ethane with steam is suggested. It is pointed out that the steam conversion is similar to hydrocracking of methane homologs.
本文综述了管式裂解炉蒸汽热裂解过程中，焦碳的形成及形态、抑制结焦及焦碳脱除技术、裂解炉烧焦过程研究进展。
Formation and shape of coke in coils of thermal cracking furnace, and advances in technologies of coking inhibitor, especially in decoking were reviewed in this paper.
结果表明，超稠油中含有一定量的硫是地层注蒸汽温度下进行水热裂解反应的前提。
The results indicate that a certain content of sulfur existed in super heavy oil is one of the necessary conditions in aquathermolysis reaction at temperature of steam injection.
计算结果表明：硫醚水热裂解反应所需的水蒸汽量随硫醚相对分子质量的增大而增多。
The results indicate that water needed by full aquathermolysis reaction increases with molecular weight of thioether.
同蒸汽热裂解相比，催化裂解能大幅降低能耗，并可灵活调整产品结构。
It can expand the range of pyrolysis feedstocks, increase the yields and selectivity of light olefins, reduce energy cost, and adjust flexibly products distribution.
同蒸汽热裂解相比，催化裂解能大幅降低能耗，并可灵活调整产品结构。
It can expand the range of pyrolysis feedstocks, increase the yields and selectivity of light olefins, reduce energy cost, and adjust flexibly products distribution.
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