Life Clycle Assessment In Dimethyl Ether Production Industry In The Application Analysis

Life Cycle Assessment is a product technology, as well as the activities of an objective process to evaluate the pressure on the environment,it is through the use of energy and matter and the resulting environmental waste discharge to identify and quantify.It aims to assess the energy and material use, and waste discharge impact on the environment, to seek the opportunity to improve the environmental impact and how to use this opportunity. The DME industry has now become the new alternative energy industry, in recent years is in a rapid stage of development, class industry is characterized by high energy consumption and production phase, sewage, their products dimethyl ether, a life cycle assessment, evaluationthe system covers the production phase of the preparation phase of the dimethyl ether of raw materials, methanol and dimethyl ether, find the opportunity of improving the industry's impact on the environment, provide a theoretical basis and technical support for the business future product design and environmental management department of the relevant environmental policies and regulations.In this paper, according to the framework and principles of life cycle assessment, dimethyl ether production industry life cycle assessment, life cycle assessment model set for such products, the model consists of three parts, namely, goal definition and scope ofdefinition of life cycle inventory analysis and life cycle impact assessment.Field survey of the A company's collect relevant data, the use of hydrogen in the exhaust of carbon monoxide and sodium chlorate in the calcium carbide exhaust methanol synthesis and the production of dimethyl ether in the process of this series of resource consumption and environmental emissions for a life cycle assessment, the producttwo important evaluation index, that is, the resource depletion coefficient and the environment affect the load. Identify the eutrophication of the product life cycle is the most important type of environmental impact, water, coal and electricity is the most important factor of energy consumption, methanol production stage of raw materials contribute to the environmental impact of load and resource depletion throughout the life cycle stage, the end of the evaluation, the paper also raises a number of improvement measures.These findings can be used to guide environmental management and production management can also provide the basis for the development of relevant environmental policies for the environmental management sector and technical support.