Hot Compressed Water Extraction of Lignin by Using a Flow-Through Reactor

Authors

  • Siti Machmudah Sepuluh Nopember Institute of Technology
  • Wahyudiono Wahyudiono Nagoya University
  • Hideki Kanda Nagoya University
  • Mitsuru Sasaki Kumamoto University
  • Motonobu Goto Nagoya University

DOI:

https://doi.org/10.4186/ej.2015.19.4.25

Keywords:

Biomass, Extraction, Lignin, Rice straw, Subcritical.

Abstract

Japanese rice straw, an agricultural by-product, was utilized for the extraction of lignin by hot compressed water at temperatures of 443 - 503 K and a pressure of 4.0 MPa using a flow-through system, a simple and environmentally friendly extraction method requiring no chemicals other than water. Under these conditions, thermal softening of the Japanese rice straw occurred, allowing the removal of lignin via depolymerization reactions. Lignin as an extraction product was analyzed using utraviolet-visible (UV-vis) spectrophotometry. Lignin recovery approached 85% when the extraction was performed at 443 and 473 K with a flow rate of 4.67 ml min-1. At a constant residence time, recovery amounts increased with increasing flow rate at each temperature. The results suggested that this process may result in an advanced plant biomass components extraction technology.

Downloads

Download data is not yet available.

Author Biographies

Siti Machmudah
Google Scholar

Department of Chemical Engineering, Sepuluh Nopember Institute of Technology, Kampus ITS, Surabaya 60111, Indonesia

Wahyudiono Wahyudiono
Google Scholar

Department of Chemical Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan

Hideki Kanda
Google Scholar

Department of Chemical Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan

Mitsuru Sasaki
Google Scholar

Graduate School of Science and Technology, Kumamoto University, 2-39-1 Kurokami, Kumamoto 860-8555, Japan

Motonobu Goto
Google Scholar

Department of Chemical Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan

Downloads

Published In
Vol 19 No 4, Jul 31, 2015
How to Cite
[1]
S. Machmudah, W. Wahyudiono, H. Kanda, M. Sasaki, and M. Goto, “Hot Compressed Water Extraction of Lignin by Using a Flow-Through Reactor”, Eng. J., vol. 19, no. 4, pp. 25-44, Jul. 2015.
Cited By
Find in Google Scholar

Authors who publish with Engineering Journal agree to transfer all copyright rights in and to the above work to the Engineering Journal (EJ)'s Editorial Board so that EJ's Editorial Board shall have the right to publish the work for nonprofit use in any media or form. In return, authors retain: (1) all proprietary rights other than copyright; (2) re-use of all or part of the above paper in their other work; (3) right to reproduce or authorize others to reproduce the above paper for authors' personal use or for company use if the source and EJ's copyright notice is indicated, and if the reproduction is not made for the purpose of sale.