著者

三浦 正勝 新川 一彦 鈴木 智 NIST メンバーズ

出版者

THE JAPAN INSTITUTE OF ENERGY

雑誌

燃料協会誌 (ISSN:03693775)

巻号頁・発行日

vol.68, no.9, pp.823-830, 1989

被引用文献数

1

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The gasification studies on the selected cellulosic wastes (Saw dust, Coir dust, Copra meal and Cassava bagasse) by fluidized bed method were investigated to determine the ideal conditions and variables suitable for generating power.<BR>Experimental runs on the steam and air gasification were carried out using bench scale gasification apparatus.<BR>The results on the steam gasification showed that at varying bed temperature ranging from 750 to 900°C, gas product with high H2 and CO content (more than 70%) having high heating value (2, 500-3, 700 kcal) were obtained.<BR>The ranges of heating values of the produced gas obtained from air gasification at appropriate operating condition were 1, 000-1, 350 kcal for saw dust, 1, 170-1, 300Kcal for coir dust, 1, 200-1, 700Kcal for cassava bagasse, and 1, 350-4, 800 kcal for copra meal.<BR>Preliminary test run of the gas engine was done by charging LPG mixed with air to determine the minimum practical heating value for smooth operation. Results of the test run showed that 1, 200 kcal was minimum heating value with gas pressure of about 1, 200 mmH2O to maintain the smooth operation.<BR>Based on the data from the preliminary test, the gas fuel products generated from saw dust were tested on the gas engine.<BR>Results showed that low calorie gas products with heating value as low as 1, 300 kcal can be utilized to run a gas engine for generation of electric power.

著者

三浦 正勝 出口 明 武内 洋 細田 英雄 鈴木 智 平間 利昌

出版者

一般社団法人 日本エネルギー学会

雑誌

燃料協会誌 (ISSN:03693775)

巻号頁・発行日

vol.66, no.8, pp.726-733, 1987-08-20 (Released:2010-06-28)

参考文献数

5

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To recover fuel oil from oily sludge, experimental studies were performed using a fluidized sand bed pyrolyzer. The heat energy for the pyrolysis of sludge was supplied from the heat of a partial combustion of sludge. It was revealed that the yield of recovered oil decreased with increasing bed temperature within the range of from 500 to 600°C. The viscosity of recovered oil decreased with the increase of the oxygen concentration in fluidized gas. The properties of the recovered oil ranked with those of the fuel oil. Moreover, the sulfur content in recovered oil was reduced to 70%, as compared with that in sludge. When lime-Stone or natural zeolite were used as the fluidized particles, relatively low viscous oil could be produced, but its yield value was small compared with the use of silica sand. The estimated value of heat con-sumption for pyrolysis was ranged from 390 to 530 kcal/kg.