Co-pyrolysis of Chrome Tanned Buffing Dust and Low Density Polyethylene Wastes and Analysis of Products for Energy Recovery

Sethuraman, C. and Gnanamani, A. and Srinivas, Kota and Sekaran, G. (2013) Co-pyrolysis of Chrome Tanned Buffing Dust and Low Density Polyethylene Wastes and Analysis of Products for Energy Recovery. International Journal of Scientific & Engineering Research, 4 (12). pp. 590-598. ISSN 2229-5518

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Official URL: http://www.ijser.org/

Abstract

Chrome tanned buffing dust (CTBD) leather solid waste and low density polyethylene (LDPE) waste though it contains higher energy value are normally considered as most harmful and hazardous waste materials due to its non-biodegradability. In this paper CTBD and LDPE are pyrolysed separately and the pyrolysis results are compared with the results of co-pyrolysis of the mixed wastes in different ratios (i.e. 1:1 and 1:2). The products i.e., residual ash, condensate liquid and combustible gas are characterized using i) Scanning Electron Microscopy (SEM), Fourier transform infrared (FTIR) spectroscopy, and Gas Chromatography Mass Spectrometry (GCMS). It was observed that liquid condensate i) contains mostly carboxylic acid with strong smell of ammonia ii) alcohol, esters and iii) longer chain hydrocarbons. SEM analysis of co-pyrolysed residual ash and residual ash of LDPE shows the presence of nano carbon with the particle size in the range 70.9 nm – 129 nm. It was also observed that co-pyrolysis of CTBD with LDPE yielded energy enriched combustible gas having 5181kcal when mixed at a ratio of 1:2. The co-pyrolysis yielded reduction in carbon monoxide (CO) and increase in hydrogen (H2) as well as hydrocarbon (CxHy) gas content

Item Type: Article
Uncontrolled Keywords: Chromium tanned proteinaceous leather waste; Carbon residue; Liquid condensate; Polyethylene; Pyrolysis;
Subjects: CSIO > Public Safety
Depositing User: Ms. Jyotsana
Date Deposited: 09 Aug 2018 12:07
Last Modified: 09 Aug 2018 12:07
URI: http://csioir.csio.res.in/id/eprint/460

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