Abstract
Shredder residue material (SRM) contains plastic material, which has a potential to replace metallurgical coal for reduction during bath-smelting processes. Among the important parameters affecting its implementation are the gasification and the reactivity of char. Therefore, prior to considering its application in metallurgical processes, the gasification characteristics of the produced char need to be studied. Although the char produced from SRM contains lower fixed carbon compared with coal char, it has a porous structure and high surface area, which makes it highly reactive during gasification experiments. In addition to physiochemical properties, the catalytic effect of ash content of SRM char is attributed to its higher reactivity and lower activation energy compared with coal char. Furthermore, the effect of devolatilization heating rate on the gasification characteristics of produced char is investigated. It was found that the devolatilization heating rate during char production has a considerable effect on morphological properties of the char product. Moreover, the gasification reactivity of char produced at a fast devolatilization heating rate was the highest, due to the less crystalline structure of the produced char.
Highlights
Shredder residue material (SRM) is the residue from shredding of end-of-life equipment, after removal of the main metallic content
The proximate analyses of char samples produced at different devolatilization heating rates are presented in Higher amounts of volatiles are present in SRM char compared with coal char
The char produced at slow devolatilization heating rate shows more order in the structure, indicated by carbon (002) peak accompanied by an overlapping peak of silica, compared with the char produced at fast devolatilization heating rate, which explains the lower reactivity observed for the this char
Summary
Shredder residue material (SRM) is the residue from shredding of end-of-life equipment, after removal of the main metallic content. The proper management of this complex residue material is a growing concern. SRM does not contain enough metals to. (2017) 3:336–349 be economically feasible as a secondary raw material in metallurgical processes, it contains considerable quantities of plastic materials. Plastic materials contain carbon and hydrogen, which makes them a possible alternative reducing agent [2]. One limitation in using plastic-containing residue material for iron making is the content of metals such as zinc and copper which are not desirable in iron-making processes [5]. Utilizing plastic-containing residue material in nonferrous processes is more feasible and has no detrimental effect on final product quality. SRM has the potential to replace part of the fossil coal used for reduction of oxides in bath-smelting processes
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
