Syngas Quality as a Key Factor in the Design of an Energy-Efficient Pyrolysis Plant for Scrap Tyres

Proceedings

Jouhara, Hussam¹  Krzyżyńska, Renata²  Czajczyńska, Dina³ 

[1] Author to whom correspondence should be addressed.;Institute of Energy Futures, College of Engineering, Design and Physical Sciences, Brunel University London, Uxbridge, Middlesex, London UB8 3PH, UK;Wroclaw University of Science and Technology, Faculty of Environmental Engineering, Wyb. Wyspianskiego 27, 50-370 Wroclaw, Poland

关键词: waste tyres;    pyrolytic gas;    gaseous emissions;   

DOI  :  10.3390/proceedings2231455

学科分类：社会科学、人文和艺术（综合）

来源: mdpi

【 摘 要 】

In 2016 4.94 million tonnes of tyres were produced. Each tyre eventually become waste and pyrolysis has been considered an effective way of utilizing scrap tyres for several decades. However, pyrolysis has failed many times because the process has a great energy demand and the quality of products is unstable or insufficient for commercial use. Usually plants are focused on the production of pyrolytic oil or char and the gaseous phase is only a by-product. In this paper the importance of composition and quality of pyrolytic gas is emphasized. The main chemical properties make this gas a valuable biofuel that may satisfy energy requirements of the whole process (except for the start-up phase). Available data from literature concerning composition and other features of the pyrolytic gas from scrap tyres obtained at temperatures up to 1000 °C are compared with experimental results. The quality of evolved gases is discussed in the context of the Industrial Emissions Directive (IED), too. Finally, an analysis of the mass balances obtained allows a decision about the business profile and profitability.

【 授权许可】

CC BY