Tallow waste utilization from leather tanning industry for biodiesel production

Authors

  • Sujinna Karnasuta Department of Environmental Science, Faculty of Environment, Kasetsart University, Bangkok, Thailand 10900
  • Vittaya Punsuvon Center of Excellence-Oil Palm, Kasetsart University, Bangkok, Thailand 10900
  • Rayakorn Nokkaew Center of Excellence-Oil Palm, Kasetsart University, Bangkok, Thailand 10900

Keywords:

Tallow waste, triglyceride, biodiesel, esterification, transesterification, RSM

Abstract

The propose of this research was to develop a two-step biodiesel production from tallow waste from leather tanning industry. With special attention to optimize the first step is acid catalyzed esterification to reduce acid value into low level that can further react in the second step. The second step is alkali catalyzed transesterification for converting triglyceride to biodiesel. tallow waste containing 78.80 mg KOH/g of high acid value was used as raw material. By using response surface methodology (RSM), a quadratic polynomial equation was obtained for acid value. The optimum esterification indicated at 1.10 (v/w) of methanol to tallow waste ratio, 2.40% sulfuric acid concentration in 1.00 h of reaction time and 60 °C of reaction temperature. After transesterificaiton, the methyl ester yield was 86.10% and the properties of the tallow waste biodiesel met biodiesel specification.

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How to Cite

Karnasuta, S., Punsuvon, V., & Nokkaew, R. (2014). Tallow waste utilization from leather tanning industry for biodiesel production. Journal of Renewable Energy and Smart Grid Technology, 8(1), 49–58. Retrieved from https://ph01.tci-thaijo.org/index.php/RAST/article/view/26262

Issue

Vol. 8 No. 1 (2013): January - June 2013

Section

Articles

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