Effect of Pretreatment by Sulfuric Acid on Cellulose Decomposition Using the In-Liquid Plasma Method

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  • TANGE Kazuki
    Graduate School of Science and Engineering, Ehime University
  • NOMURA Shinfuku
    Graduate School of Science and Engineering, Ehime University
  • MUKASA Shinobu
    Graduate School of Science and Engineering, Ehime University
  • TOYOTA Hiromichi
    Graduate School of Science and Engineering, Ehime University
  • SYAHRIAL Fadhli
    Graduate School of Science and Engineering, Ehime University Center of Advanced Research on Energy, Faculty of Mechanical Engineering, Universiti Teknikal Malaysia Melaka, Malaysia

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<p>Hydrogen energy is the most promising source of sustainable energy under development. The decomposition of cellulose suspension for hydrogen production by using a 27.12 MHz in-liquid plasma was carried out at atmospheric pressure. Various types of reagents, such as 1 mol/dm3 H2SO4, 1 mol/dm3 NaOH and 0.333 mol/dm3 Na2SO4, were used and compared as to the rate of gas production. Cellulose dispersed in acid liquids is decomposed indirectly by active radicals by the plasma. The highest hydrogen production rate was obtained by employing 1 mol/dm3 NaOH. The gasification rate of cellulose suspension was determined from the increase of C atoms in the product gas. When 1 mol/dm3 NaOH was used, the rate was 7 times greater than that for pure water. It was found that carbon atoms in the product gas is indicative of the decomposition rate of the cellulose suspension.</p>

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