Abstract: Based on the life cycle inventory of ethylene production, the life cycle impact assessment was performed, and the overall impact indicator was 1.12×10－10 a－1. According to the life cycle interpretation, the impact of the depletion of non-renewable resources was more than 58% in the overall impact. The life cycle impact assessment of individual pollutants showed that the direct emissions of ethylene and NOx were the main sources of environmental burden, and their shares were both about 1/4.

摘要： 基于乙烯生产的生命周期清单结果，对其进行生命周期影响评价，得到生命周期影响的单一指标评价结果为1.12×10－10/年，并进行了结果解释。乙烯生产的生命周期影响中，不可再生资源消耗占据主要地位，在总负荷中占到的份额达58%。对各污染物的直接排放进行单项影响评价，结果表明生产过程中的乙烯排放和NOx排放是主要问题，其环境负荷在环境排放类总负荷中所占份额均达1/4左右。