Acid-Catalyzed Char Formation from 5-HMF in Subcritical Water
スポンサーリンク
概要
- 論文の詳細を見る
5-Hydroxymethylfurfural (5-HMF) is one of the intermediates in char polymerization, a side reaction that takes place in the supercritical water gasification (SCWG) of biomass. In this paper we report a kinetic investigation of the polymerization of 5-HMF in the process of solid char formation in an acidic environment. This is due to the fact that 5-HMF is copresent with other product acids during biomass decomposition. Mixtures of 5-HMF and hydrochloric acid were therefore treated in a subcritical condition (350°C; 25 MPa) in the present work. The concentration of 5-HMF ranged from 0.01 to 0.05 M, while that of HCl was 0.01 M (at room temperature). The rates of gas and char production from 5-HMF obtained from experiments with and without acid (Chuntanapum and Matsumura, 2009) were compared. Acid catalyzed both the gasification and polymerization pathways of 5-HMF, especially the decomposition reaction of 5-HMF to TOC, the rate constant of which was increased by two orders of magnitude.
- 2011-07-01
著者
-
SHII Takayuki
Department of Mechanical System Engineering, Hiroshima University
-
Matsumura Yukihiko
Department Of Mechanical System Engineering Graduate School Of Engineering Hiroshima University
-
Chuntanapum Athika
Department Of Mechanical System Engineering Hiroshima University
-
Shii Takayuki
Department Of Mechanical System Engineering Hiroshima University
関連論文
- Acid-Catalyzed Char Formation of 5-HMF in Subcritical Water
- A Kinetic Study of the Decomposition of CaCO_3 at High CO_2 Partial Pressure for the Regeneration of a CO_2 Sorbent
- Remarkable Activity Enhancement of Pitch Based Active Carbon Fibers by Heat-treatment for Oxidative SO_2 Removal
- Reduction of NO at Very Low Concentration in Air with NH_3 at Room Temperature over a Series of Calcined Pitch Based Active Carbon Fibers
- Electrochemical Oxidation of Carbon Monoxide on a Pt Electrode at Lower Potential in Hot Aqueous Solution at 423 K and 473 K
- Surface Reducibility of Cerium Oxide Modified with Palladium
- Low-temperature Methanol Synthesis Catalyzed over Pd/CeO_2
- Hydrothermal Treatment of Cellulose as a Pretreatment for Ethanol Fermentation : Cellulose Hydrolysis Experiments
- Behavior of inorganic elements in poultry manure during supercritical water gasification (特集 バイオマス)
- Role of 5-HMF in Supercritical Water Gasification of Glucose
- Gasification of Stockbreeding Waste in Supercritical Water
- Effect of Methanol and Acetone Addition on Heat Transfer to Turbulent Flow of Supercritical Water
- Hydrogenation of Acetone in Supercritical Water Using Formic Acid : Rapid Hydrogenation Observed at a Long Retention Time
- Adsorption of Carbon Monoxide on Platinum in Hot Aqueous Acidic Solution from 423 to 533 K
- Biomass Gasification in Supercritical Water with Partial Oxidation
- Global Kinetics of 2-Chlorophenol Disappearance with NaOH in Supercritical Water
- Effects of Salt, Acid and Base on the Decomposition of 2-Chlorophenol in Supercritical Water
- Detailed Analysis of Heat and Mass Balance for Supercritical Water Gasification
- Gasification of Catalyst-Suspended Chicken Manure in Supercritical Water
- Acid-Catalyzed Char Formation from 5-HMF in Subcritical Water