Operation of bench plants producing racemic lactic acid and lactide isomers from glycerol, a by-product of biodiesel fuel production process

Hisanori Kishida, Takashi Hasegawa, Takehiko Moriya, Hitomi Ohara, Nobuyoshi Nomura

Research output: Contribution to journalConference articlepeer-review

8 Citations (Scopus)

Abstract

We developed a novel production method for stereoblock poly(lactic acid) (sb-PLA) from glycerol that is a by-product of biodiesel fuel (BDF) production process. It includes the novelties of (1) the conversion of glycerol into racemic lactic acid by alkaline hydrothermal reaction and (2) the stereoselective polymerization of lactide isomers by using an achiral homosalenaluminum complex as a catalyst to synthesize sb-PLA. For practical use of these novel methods, we have constructed bench plants that can produce mixture of lactide isomers from glycerol. The throughput capacity of glycerol in the bench plant is about 50 tons/year. The bench plant was controlled stably for ∼100 hours, and it was confirmed that racemic lactic acid and then the mixture of lactide isomers were produced by the bench plants.

Original languageEnglish
Pages (from-to)187-194
Number of pages8
JournalEnergy Procedia
Volume56
Issue numberC
DOIs
Publication statusPublished - 2014
Externally publishedYes
EventEco-Energy and Materials Science and Engineering, EMSES 2014 - Phuket, Thailand
Duration: 2013 Dec 182013 Dec 21

Keywords

  • Bench plant
  • Glycerol
  • Hydrothermal
  • Stereoblock poly(lactic acid)

ASJC Scopus subject areas

  • Energy(all)

Fingerprint

Dive into the research topics of 'Operation of bench plants producing racemic lactic acid and lactide isomers from glycerol, a by-product of biodiesel fuel production process'. Together they form a unique fingerprint.

Cite this