Co-pyrolysis of cotton stalk and waste tire with a focus on liquid yield quantity and quality

Syed Asfand Yar Shah, Muhammad Zeeshan, Muhammad Zohaib Farooq, Naveed Ahmed and Naseem Iqbal

Renewable Energy, 2019, vol. 130, issue C, 238-244

Abstract: In this study, effect of waste tire (WT) addition to cotton stalk (CS) pyrolysis is investigated with a focus on liquid co-pyrolysis yield quantity and quality. Various blend ratios (i.e. CS/WT 1:0, 4:1, 3:2, 2:3, 0:1) of the two feedstocks were experimented in a fixed bed reactor at 20 °C/min heating ramp rate up to 550 °C with 50 ml/min flowrate of nitrogen as sweeping gas. Blend ratio CS/WT (2:3) showed maximum oil yield (48 wt%) with organic phase (OP) above 78 wt% of the total liquid yield (OP + aqueous phase, AP). OP of CS/WT (2:3) along with those of CS/WT (1:0) and (0:1) were further analyzed qualitatively using analytical techniques including, FTIR, GC-MS, bomb calorimetry and elemental analyzer. Significant increase in carbon and decrease in oxygen content of the CS/WT (2:3) pyrolytic oil was observed which improved its calorific value to 41 MJ/kg. Among the three OP samples, only CS/WT (2:3) oil showed significant presence of alkanes in GC-MS results, which is, thus, associated with the synergistic effect of the co-pyrolysis process. Addition of WT to CS pyrolysis feedstock improved liquid yield and its quality, thus requiring lesser further processing for its commercial use as compared to that of CS/WT (1:0) oil.

Keywords: Co-pyrolysis; Cotton stalk; Waste tire; Liquid yield; Pyrolysis oil (search for similar items in EconPapers)
Date: 2019
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Citations: View citations in EconPapers (3)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:renene:v:130:y:2019:i:c:p:238-244

DOI: 10.1016/j.renene.2018.06.045

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