摘要
中科院提出的"低阶煤清洁高效梯级利用关键技术与示范"战略性先导科技专项旨在研发以热解为先导的低阶煤高效分级综合利用技术及其示范应用。解决热解相关的关键技术问题是战略先导专项顺利实施的关键。自20世纪70年代以来,世界各国虽在煤热解方面进行了大量研究,取得了重要进展,但仍未实现商业化运行,其主要原因是一些关键科学与技术问题未得到突破。因此,明确煤热解过程中存在的技术问题,提出有效的解决方案,是实现其示范与应用的必由之路。文章从分析低阶煤的化学结构出发,剖析了热解需要突破的关键科学和技术问题,并介绍了中科院所提出的热解技术方案。
The Demonstration of Key Technologies for Clean and Efficient Utilization of Low-rank Coal, one of the Strategic Priority Research Programs carried out by Chinese Academy of Sciences （CAS）, has been initiated to develop a new staged-utilization solution of low-rank coal. The pyrolysis of low-rank coal is one of the key technologies and a lot of scientif- ic, technical and engineering challenges need to be addressed. Since the 1970s, many countries have carried out a large number of scientific and technical researches about coal pyrolysis, but there is still not large-scale commercial operation of coal pyroly- sis technology. Therefore, it is highly needed to have deep insight into the scientific and technical issues of coal pyrolysis and thereby to achieve innovation ideas in process design and engineering development in order to commercialize the pyrolysis technology of low rank coal. This paper begins with an introduction of the structural characteristics of low-rank coal and a de- scription of the potential difficulties in coal pyrolsyis. In turn, the paper presents a simple review on the experienced develop- ments for coal pyrolysis technologies and a highlight of the new process ideas for pyrolysis under development in CAS
出处
《中国科学院院刊》
2013年第6期772-780,共9页
Bulletin of Chinese Academy of Sciences
关键词
低阶煤
热解
战略性先导科技专项
low-rank coal, the strategic priority research programs, pyrolysis
