Cumulative energy demand (CED) and cumulative CO2 emissions for products of the organic chemical industry
Cumulative energy demand (CED) and cumulative CO2 emissions for products of the organic chemical industry
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有机化工产品的累计能源需求（CED）和累计二氧化碳排放量
DOI：
10.1016/s0360-5442(02)00166-4
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发表时间：
2003
期刊：
影响因子：
9
通讯作者：
M. Patel
中科院分区：
文献类型：
--
作者：
M. Patel
本文介绍并讨论了有机化工产品的累积能源需求（CED）和相关的累积CO2排放量（CCO2）的计算结果。研究整个工艺链，从资源的提取开始，到可销售的材料（摇篮到工厂大门）结束。所研究的材料是20世纪90年代中期在德国生产的化学中间体和塑料。聚乙烯和聚氯乙烯这两种散装塑料属于可以以相对较低的能源投入生产的聚合物。相比之下，用于制造工程塑料和特种塑料的CED和CCO2值可以高出两倍以上。CED和CCO2数据确定的基础上，我们的计算与其他来源的数据进行了比较。这些差异表明，为了进行可靠的研究，必须只使用一组以一致方式确定的数据。相比之下，使用来自不同来源的CED和CCO2数据进行比较评估，由于数据范围大，很容易得出扭曲的结论。所发现的数据范围表明，仍然存在相当大的不确定性，需要在该领域进行进一步分析。目前建议使用独立、一致来源的CED和CCO2数据进行比较计算。
This paper both presents and discusses the results of calculations on the Cumulative Energy Demand (CED) and the related Cumulative CO2emissions (CCO2) for products of the organic chemical industry. The entire process chain is studied, starting with the extraction of resources and ending with the saleable material (cradle-to-factory gate). The materials studied are chemical intermediates and plastics as produced in Germany in the mid 1990s. The two bulk plastics, polyethylene and polyvinyl chloride, belong to the group of polymers that can be produced with a relatively low input of energy resources. By contrast, the CED and the CCO2values for manufacturing engineering and special plastics can be more than twice as high. The CED and CCO2data determined on the basis of our calculations is compared with data from other sources. The differences show that for a reliable study it is essential that use is made of only one set of data which has been determined in a consistent manner. In contrast, comparative assessments which use CED and CCO2data originating from various sources, can easily result in distorted conclusions given the large data ranges. The data ranges found indicate that considerable uncertainties continue to exist, calling for further analysis in the area. Comparative calculations using CED and CCO2data from independent, consistent sources are recommended for the time being.