查询词典 oil refining

ABSTRACT With the development of oil refining technology, petroleum coke, especially petroleum coke with high sulfur is becoming industrial waste.

随着炼油工业的发展，石油焦，特别是高硫石油焦成为工业废物。

The process whereby heavy molecules of naphtha or petroleum are broken down into hydrocarbons of lower molecular weight (especially in the oil-refining process).

把石油重分子分解成低分子碳氢化合物的过程；把石油分子分解成更小的分子并提取低沸点的分馏部分的过程。

Whereby heavy molecules of naphtha or petroleum are broken down into hydrocarbons of lower molecular weight (especially in the oil-refining process).

把石油重分子分解成低分子碳氢化合物的''。'过程'。''；把石油分子分解成更小的分子并提取低沸点的分馏部分的''。'过程'。''。

Objective There exists the occurrence possibility of acute poisoning accident in the oil refining process in the petrochemical company. The quantitative risk analysis was made predictively for the consequence of acute poisoning caused by high toxic substances in order to put forward the countermeasures scientifically on the aspect of emergency rescue and management.

目的 某新建石油化工企业炼油生产工艺过程存在急性中毒事故的可能性，针对高毒物质造成的急性中毒后果进行定量预测分析，以科学地在应急救援及管理方面提出相应的对策。

Pillared montmorillonite, as a representative of Sandwich like pillared interlayered clays ,caught many scientist"s attention not only because of its special structure of two-dimensional sheets but also its excellent activity of catalysis and adsorption. It is well documented that the method to prepare PILM, ion-exchanging, needed a long periods and was affected by many factors, and that the product had low thermal stability especially hydro-thermal stability which was the primary obstruction of its using in large-scale production. At the same time, PILM was well documented prepared with Na-montmorillonite, while there were a few documents about PILM prepared with Ca-montmorillonite. The large cost of remodel of Ca-montmorillonite to Na-montmorillonite was another obstacle of the application of PILM, while Ca-montmorillonite was widely distributed in nature, as a result, to prepare PILM with Ca-montmorillonite has practical significance. What"s more, PILM was mainly studied as a catalyst in oil refining process till now, but rarely documented in other catalysis reactions, especially in coal liquification filed which also needed high activity catalyst.

以柱撑蒙脱石为代表的具有"三明治"结构的柱撑粘土矿物因其特殊的二维孔道结构和优良的催化和吸附性能近年来成为国内外广泛关注和研究的热点，但是目前国内外大量报道的PILM制备大多采用离子交换法，生产周期很长，影响因素很多，并且产物热稳定性不够高，特别是水热稳定性较差，这是其不能在实际中大规模生产和应用的主要障碍，因此制备一种高稳定性的PILM意义非常；文献中大量报道的都是钠基蒙脱石合成的柱撑粘土矿物，传统的离子交换法必须将钙基蒙脱石钠化改型，其成本相当高，而自然界中大量存在的却是钙基蒙脱石，直接用钙基蒙脱石合成柱撑粘土矿物有很现实的意义，但目前这方面的报道却很少见；另外，迄今为止，PILM作为催化剂的研究领域主要在石油的炼制中应用，而在煤炭的液化中却鲜有报道，如果能在煤炭转化领域应用这一成果，其影响也将是相当大的。

To meet the requirements of large-scale of oil refining equipments and rigorousness of technical conditions, vacuum transfer line structures tend to become more and more complex.

随着炼油装置的大型化和工艺条件要求的提高，转油线结构趋于复杂。

To meet therequirements of large-scale of oil refining equipments, rigorousness oftechnical conditions and complexity of structures, special pipe fittings suchas Pants tees and Y-tees are used for the purpose of reducing fall ofpressure and temperature. However high stress concentration is alwaysfound there, cause underlying safety problems.

随着炼油装置的大型化和工艺条件要求的提高以及结构的复杂化，为了减小压降和温度降，采用裤型三通、Y 型三通一些特殊的管件形式，在 Y 型三通、裤型三通的局部往往会有应力高度集中，给设备安全造成隐患。

It also can be used in the manufacture of sodium hydroxide , vitamins, spices, dyes, sodium amalgam, tetraethyl lead, titanium and oil refining and so on.

可用于制造氰化钠、维生素、香料、染料、钠汞齐、四乙基铅、金属钛等，还可用于石油精制等方面。

The process of thiol removal is usually necessary in oil refining.

为此 ，在炼油工业中常常需要将硫醇脱除。

The company's leading product LD series intelligent industrial control instrumentation for temperature, humidity, pressure, flow, level, pH and other parameters automatically detect, display, Totalizer and control, in metallurgy, chemical industry, light industry, food, pharmaceutical, oil refining, electric power industry can be widely used, and its excellent cost performance from all walks of life have become an increasing popular.

公司的主导产品LD系列智能型工业控制仪表，用于温度、湿度、压力、流量、液位、酸碱度等参数的自动检测、显示、积算及控制，在治金、化工、轻工、食品、制药、炼油、电力等行业中得以广泛使用，其优良的性能价格比日益受到各行各业的青睐。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。