某加工行业能源利用优化与废料再利用可行性研究

发布时间：2019-03-07 12:57

【摘要】：我国的加工行业是资源消耗及污染物排放的大户,对于完成“十二·五”规划,实现节能减排的目标,加工行业有着更加重大的社会责任。工业上能源利用的优化和应用可再生资源,是减少二氧化碳排放的重要措施。本文经过实地考察与分析,决定选取广西某制糖工业旗下的两个工厂为研究对象,作为能源优化和废料再利用的研究。以生物质(甘蔗和蔗渣)为原料的制糖工业和造纸工业是广西的支柱产业,经过一系列的加工过程后最终得到白砂糖和纸浆制品。本文描述了实地考察中发现的资源不合理利用的现象,同时也详细地概述了糖厂与纸厂的制造工艺。利用ECLIPSE模拟软件建立其完整的工业模型,并模拟各阶段生产环节的物料输入和能量输入,之后通过分析模拟结果找出两厂在生产废料中具有潜力的能源物质,使其“变废为宝”再利用到产品生产中去。模拟结果说明该糖厂和纸厂排放的废料中确实存在着部分有机物。因此,分析和评估从模拟中找出的有机废料,以及从实地考察中在纸厂发现的另外一种生物质能源料场淋水,并确定这几种物质再利用的方案。最后,综合以上的分析结果,利用所有潜在的有机废料为纸厂设计能源优化方案。即将这些物质通过厌氧消化的方法在沼气池中生成沼气,并将全部产生的生物质燃料通入纸厂的热电联产系统中,代替部分煤的燃烧为纸厂供能。最终的模拟结果证实了该改进方案是合理及有效的,每年可以为该纸厂节约用煤10186吨,并实现22.5%的二氧化碳减排量。
[Abstract]:The processing industry of our country is a big consumer of resource consumption and pollutant emission. It has more important social responsibility for accomplishing the "Twelfth five-year Plan" and realizing the goal of energy saving and emission reduction. The optimization and application of renewable resources in industrial energy utilization is an important measure to reduce carbon dioxide emissions. After on-the-spot investigation and analysis, this paper decided to select two factories of a sugar industry in Guangxi as the research object, as the research on energy optimization and waste reuse. Sugar-making and paper-making industry based on biomass (sugar cane and bagasse) is the pillar industry of Guangxi. After a series of processing processes, white sugar and pulp products are finally obtained. This paper describes the phenomenon of unreasonable utilization of resources found in the field investigation, and also gives a detailed overview of the manufacturing processes of sugar and paper mills. The ECLIPSE simulation software is used to establish a complete industrial model, and to simulate the input of materials and energy in each stage of the production process. After analyzing the simulation results, we can find out the potential energy materials in the waste production of the two plants. Make it "change waste into treasure" and reuse it in the production of products. The simulation results show that some organic compounds do exist in the waste discharged from the sugar and paper mills. Therefore, the analysis and evaluation of the organic waste found from the simulation, as well as the leaching of water from another biomass energy plant found in the field study, and the determination of the schemes for the reuse of these substances. Finally, all the potential organic waste is used to design the energy optimization scheme for paper mill based on the above analysis results. The biogas is produced in biogas digester by anaerobic digestion, and all the biomass fuel is fed into the cogeneration system of paper mill to replace the combustion of some coal to supply energy for paper mill. The simulation results show that the improved scheme is reasonable and effective. It can save 10186 tons of coal and reduce carbon dioxide emission by 22.5% per year for the paper mill.
【学位授予单位】：广西大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TS249;X79

【参考文献】