摘要

随着全球能源结构的调整和环保要求的提高，煤化工行业正面临着转型升级的重要机遇。煤焦油作为煤化工过程中的重要副产品，其高效利用和深加工一直是行业研究的热点。加氢裂化技术作为一种先进的煤焦油加工手段，能够有效提高煤焦油的附加值和产品质量，满足市场对高品质燃料和化学品的需求。因此，本选题旨在通过深入研究煤焦油加氢裂化工段的工艺设计，为煤化工行业的可持续发展提供技术支持和解决方案。

本文旨在设计年处理30万吨煤焦油的加氢裂化工段工艺。首先，通过深入分析和论证，确定了合理的生产工艺路线和设计方案。随后，基于物料和热量衡算原理，对煤焦油加氢裂化工段进行了详细的物料衡算和热量衡算，确保了工艺过程的经济性和高效性。根据计算和已知的现场条件，对关键设备进行了选型，并编制了设备一览表，为后续采购和安装提供了依据。接着，按照《化工设计》教材的相关要求，绘制了A1图幅的煤焦油加氢裂化工段物料流程图，直观地展示了物料在工艺过程中的流转和转化情况。此外，还绘制了工艺管道及仪表流程图和设备布置图，为工艺的实际操作和现场布局提供了清晰的指导。本研究不仅为煤焦油加氢裂化工艺的工业化应用提供了理论支持，也为煤化工行业的可持续发展提供了技术保障。

关键词：煤焦油；加氢裂化；工艺设计；物料衡算；热量衡算；设备选型

Abstract

With the adjustment of the global energy structure and the improvement of environmental protection requirements, the coal chemical industry is facing an important opportunity of transformation and upgrading. As an important by-product in the process of coal chemical industry, its efficient utilization and deep processing of coal tar have always been the hot spot of industry research. As an advanced coal tar processing method, hydrocracking technology can effectively improve the added value and product quality of coal tar and coal tar, and meet the market demand for high-quality fuels and chemicals. Therefore, this topic aims to provide technical support and solutions for the sustainable development of coal chemical industry through in-depth study of the process design of coal tar hydrocracking section.

This paper aims to design a hydrocracking section process to process 300,000 tons of coal tar annually. First, through in-depth analysis and demonstration, a reasonable production process route and design scheme are determined. Subsequently, based on the principle of material and heat calculation, the detailed material calculation and heat calculation of the coal tar hydrogenation cracking section, to ensure the economy and efficiency of the process. Based on the calculation and known field conditions, the key equipment was selected and an equipment list was prepared to provide a basis for subsequent procurement and installation. Then, according to the relevant requirements of the textbook "Chemical Design", the material flow chart of coal tar hydrocracking section in A1 drawing is drawn, which intuitively shows the flow and transformation of materials in the process. In addition, the process pipeline and instrument flow chart and equipment layout chart are also drawn, which provide clear guidance for the practical operation and site layout of the process. This study not only provides theoretical support for the industrial application of coal tar hydrocracking process, but also provides technical support for the sustainable development of coal chemical industry.

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Abstract

摘要