Decomposition Behavior of Waste Paper with Hot Compressed Water.
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概要
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For the purpose of producing saccharides from waste paper, decom-position experiments of several kinds of waste paper such as old news print, flier and paper sludge with hot compressed water were performed by using a batch reactor of 6ml inner-volume. The temperature of water was varied in the range of 250-325°C under the decomposition time of about 60s. After the decomposition, yields of water-soluble and water-insoluble components (WS, WI) in the samples and concentrations of saccharides such as hexose and cellobiose in WS were measured. As the results, the maximum concentration of hexose obtained from old news print under the condition of 286°C and 40s was about 25wt% on WS basis. However, hexose and cellobiose were not obtained from flier, catalogue and sludge from a recycled paper plant. It was found that calcium carbonate in their samples prohibited the saccharification of paper. The addition of phosphate salt was confirmed to be effective for producing hexose from cellulose in the reaction system including calcium carbonate.
- 一般社団法人 日本エネルギー学会の論文
一般社団法人 日本エネルギー学会 | 論文
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