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粗苯的形成是通过脱氯后的焦炉煤气中回收的苯系化合物,是煤热解生成的粗煤气中的产物之一。本文对粗苯回收进行了简要分析,其次对影响粗苯回收的主要因素进行探讨,希望对相关专业提供借鉴。 相似文献
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<正>粗苯是焦炭生产过程中的副产物,常温下是一种淡黄色易挥发的液体。目前采用洗油吸收法从炼焦过程中的焦炉煤气中吸收粗苯,因此,上游焦炭产品的生产状况对我国粗苯的市场供应起着决定性的作用,而下游精苯生产厂家的需求对粗苯的市场价格起着拉动或制约作用。 相似文献
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煤焦化粗苯是一种重要的工业原料。精苯是煤焦化粗苯的高纯度产品,具有更高的纯度和质量要求,因此具有更广泛的应用领域。精苯的生产影响着相关产业的发展和竞争力。预处理工序在煤焦化粗苯生产精苯过程中起着至关重要的作用。它的主要目标是去除煤焦化粗苯中的杂质、杂质物质和不纯物质,提高产物的纯度和品质。预处理工序通常包括脱硫、脱碳、脱氮等操作,以及液相催化反应等。通过改进煤焦化粗苯生产精苯的预处理工艺,可以实现更高质量、更高效率和更环保的生产,提高企业的竞争力和可持续发展能力。 相似文献
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文章对粗苯储罐现状进行了介绍,对储罐检修过程中存在的危险因素进行了辨识。通过对储罐内残留的苯液及残渣先后采用置换、蒸煮、吹扫、高压水射流切割等方式,实现了粗苯储罐检修的安全控制,检修储罐的同时回收了残渣内的粗苯,保证残渣的处理符合环保的要求。 相似文献
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随着焦炉煤气产业链的延伸,深加工技术的不断发展、改进,对处理后的焦炉煤气质量要求越来越高,尤其是合成氨、甲醇行业,由于苯含量的升高不仅影响系统阻力,同时还会严重影响催化剂的使用寿命,故对焦炉煤气中含苯要求越来越高。鉴于焦炉煤气中含苯量过高,造成焦炉煤气直接放散,对后续化工装置的产量造成很大的波动,甚至停车,增加运行成本,降低企业利润。研究将对煤气中苯含量高的具体原因开展研究分析,并根据具体的原因提出针对性的解决办法。 相似文献
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Process plant contractors implement and bring to fruition the capital investment programmes in such sectors as chemicals and metals. In undertaking a contract they perform all or a number of the following: plant design and engineering, supply of process technology, procurement of equipment, supervision of construction, plant commissioning, and the arrangement of project finance. Specific characteristics of the industry are the variety of functions undertaken by the contractor and operation on a worldwide basis.
The nature and extent of contractor involvement in transferring technology is determined by a complex interaction of a number of economic and technological factors. The source of technology may be 'in-house', a long term licence agreement, or some specific arrangement to meet a particular enquiry. The paper illustrates the various means for technology transfer drawing on examples from the experience of one contractor. 相似文献
The nature and extent of contractor involvement in transferring technology is determined by a complex interaction of a number of economic and technological factors. The source of technology may be 'in-house', a long term licence agreement, or some specific arrangement to meet a particular enquiry. The paper illustrates the various means for technology transfer drawing on examples from the experience of one contractor. 相似文献
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The function of process plant contractors is to design and engineer plants, supply process technology, procure plant equipment and supervise the construction and commissioning of plant for producers in various process industries such as chemicals, gas and steel. As such they play a major part in the process of capital formation and are one of the major inputs for facilitating technological change.
This paper describes recent attempts to identify the factors which determine contractor involvement and use this information as a basis for analysing the part contractors will play in developing trchnologies such as coal conversion and biotechnology. 相似文献
This paper describes recent attempts to identify the factors which determine contractor involvement and use this information as a basis for analysing the part contractors will play in developing trchnologies such as coal conversion and biotechnology. 相似文献
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《International Journal of Industrial Organization》1987,5(1):27-41
Entry can take different forms - new plant creation versus diversified merger - and can be undertaken by quite different actors - domestic as opposed to foreign firms. This study uses a comprehensive data base on Canadian firms built up from census of manufacturing records to quantify the importance of these different components. Regression analysis is used to examine whether the determinants of entry differ for these components. Entry by merger is shown to be as important as entry by plant creation. Diversified mergers are concentrated in industries where entry barriers are high; plant creation by domestic but not by foreign firms is negatively related to entry barriers. 相似文献
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Fault tree analysis evaluates the relationship between overall process risk and human failure probabilities. Based on this information, most critical areas of operator training and/or need for automatic systems are determined. 相似文献
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俄罗斯原油市场牌价均采用挂靠国际基准原油牌价的目的地定价方法。俄罗斯出口原油井口价格主要受港口FOB价格、出口税、管输费3方面因素的影响。其中,俄原油出口税与油价正相关,但出口税政策存在时滞性的缺陷,当国际油价波动较大时,对企业收益影响较大。在不考虑国内、国外购买商招标溢价的情况下,美元口径下国内市场扣除增值税和运费的内销净价与国际市场扣除出口税和运费的外销净价相当,这使得俄国内炼油厂得到了充分的原油供应。俄罗斯内外销原油市场定价体系在国内税收政策的配合下,达到了平衡内外销原油价格、平衡油田企业利润和稳定政府预算收入的目的,同时体系中存在着一些不足。 相似文献
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原油流量标准检定系统的科学建立 总被引:1,自引:0,他引:1
杜怀栋 《石油工业技术监督》2000,16(7):4-6
针对目前流量标准检定系统存在的问题,提出了适合我国国情又有符合国际标准、较为科学的流量标准检定系统,从计量管理的角度,阐述了建立系统的重要意义,并提出了实施系统的一些见解。 相似文献