COx free hydrogen production from cellulose and calcium hydroxide mixture

Mitsuru Matsumoto, Yasuaki Kawai, Shin Ichi Towata, Yoshiaki Fukushima, Kibu Chiyo, Fumio Saito

Research output: Contribution to journalConference articlepeer-review

Abstract

A simple and efficient H2 production procedure from cellulose without emitting COx has been developed. In this method, first cellulose and metal hydroxides are ball milled, and then the ball milled mixture is heated under inert and dry atmosphere. The overall reaction can be described in eq 1. Reaction 1 takes place at 400°C to produce the gas containing >93.5% of H2, 6.4% of CH4, and 0.1% of COx at this temperature. C6H10O5 (cellulose) + 6Ca(OH)2 +0.5Ni(OH)2 R→CaCO3 + 11.5H2 +0.5Ni eq. 1. This is a versatile H2 production method, which can apply to the other organic substances and metal hydroxides. We have found that the ball milling process and addition of Ni(OH)2 catalyst are required to enhance H2 yield. In order to achieve the cost/energy efficient H2 production technology, it is essential to understand the milling effects on the cellulose/hydroxides mixture and the reaction mechanism of hydrogen generation step(s).

Original languageEnglish
JournalACS National Meeting Book of Abstracts
Publication statusPublished - 2010 Dec 1
Event239th ACS National Meeting and Exposition - San Francisco, CA, United States
Duration: 2010 Mar 212010 Mar 25

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)

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