Analysis of mass flow and proposal of key technologies for establishment of zero-emission processes

质量流量分析及零排放工艺建立关键技术建议

基本信息

批准号：
09247106
负责人：
HANO Tadashi
金额：
$ 52.03万
依托单位：
Oita University
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research on Priority Areas (A)
财政年份：
1997
资助国家：
日本
起止时间：
1997 至 2000
项目状态：
已结题

项目摘要

The establishment of zero-emission processes in representative industries which discharge a lot of emissions was studied by analyzing the mass and energy flows in each process to make the data-base and by developing the key technologies necessary to reduce the emission. A soy-sauce production process was investigated as an typical example of food industry. The mass flow in the process was completely analyzed for all operating lines and the mass balance charts of total solid and liquid, TOC, N, P and Cl were drawn. The dry distillation, pressurized hot water treatment, and enzymatic hydrolysis of cake were investigated for effective re-use in agriculture by removing salt. Vinyl chloride monomer (VCM) production process was investigated as an example of chemical industry. The total mass balance sheet of chlorine in Japan was first presented based on the flow analysis. A satisfactory way to reduce the byproducts such as chloroethane was proposed to realize the zero-emission of those bypro … More ducts by biological conversion method. The road works generated a large quantities of byproducts such as asphalt, concrete and gravelly soil scraped, while they utilized a lots of natural virgin resources. In establishing an advanced recycle system of byproducts, it was important to clarify the mass flow of raw materials and byproducts for each road work in a local area. The zero-emission in metal industries was studied for iron, copper and zinc production processes. About two million and four thousand tons of copper was supplied to the copper market and nine hundred thousand tons of copper scrap was used in total. As a topic of recycling technology, the removal of iron in molten copper was studied by air blowing process. Iron content decreased from about 1% to less than 100ppm within 2000 sec. Material flow in semiconductor industry was investigated to analyze the emission of unrecycled materials. Inter-process networking of such emissions with the other manufacturing processes was also investigated. The problems to be solved for waste minimization were assessed and some waste minimization options were proposed.Those results obtained in the present investigation were proposed to industries and also published as research papers in various journals. Less

通过分析每个过程中的质量和能量流以制造数据库和开发减少排放所需的关键技术来研究代表排放大量排放的行业中的零发射过程。研究了一种大豆萨斯的生产过程，作为食品行业的典型例子。绘制了所有工作线的质量流量，并绘制了总固体和液体，TOC，N，P和CL的质量平衡图。研究了干燥的蒸馏，加压热水处理和蛋糕的酶水解，以有效地使用同意盐。研究了乙烯基氯化物单体（VCM）生产过程，作为化学工业的一个例子。首先根据流量分析提出了日本氯的总质量平衡表。提出了一种减少副产品（例如氯乙烷）的令人满意的方法，以实现那些Bypro的零发射……通过生物转化方法更多的管道。道路工程产生了大量的副产品，例如沥青，混凝土和重力土壤，同时利用了许多天然原始资源。在建立高级副产品回收系统时，重要的是要阐明当地每项道路工作的原材料和副产品的质量流量。金属工业的零发射研究是针对铁，铜和锌生产过程的。将大约200万吨铜提供给铜市场，总共使用了9000万吨铜废料。作为回收技术的话题，通过吹气过程研究了熔融铜中铁的去除。铁含量在2000秒内从约1％降至小于100ppm。研究了半导体行业的材料流，以分析未记录的材料的排放。还研究了此类排放与其他制造过程的过程间网络。评估了要解决废物最小化的问题，并提出了一些废物最小化选择。在本投资中获得的这些结果提议向行业提出，并在各种期刊上作为研究论文发表。较少的