Synthesis of Methyl Alcohol and Alternative Gases for Petroleum by Thermochemical Gasification of Waste Lignocellulosic Materials (II) - Thermochemical Conversion of Sawdust, Ricestraw and Ricehusk Using Alkali Salts as Catalyst by Pressurized Reactor

목질(木質) 폐재(廢材)의 열(熱)-화학적(化學的) 방법에 의한 메틸알콜과 대체(代替)에너지 가스의 합성(合成) (II) - 가압하(加壓下)에 알칼리염을 촉매로 사용한 톱밥, 볏짚 그리고 왕겨의 열화학적(熱化學的) 분해(分解) -

A stainless steel autoclave reactor, which is the property of Pacific Northwest Laboratories(PNL) and located in PNL, was acted for pyrolysis and gasification of sawdust, ricestraw, and ricehusk. The initial reaction temperature of this reactor was 300$^{\circ}C$, and up to 500$^{\circ}C$ to complete pyrolysis and gasification reaction. The maximum exerted pressure on this reactor was 800 psig. In order to examine the effect of catalyst on reaction temperature, $K_2CO_3$, and nickel/alkali carbonate catalyst mixture were also used. The experimental results obtained with this reactor indicated that good yields of methane-rich gas(exceeding 40% methane) can be produced. The product gas mixtures were also identified to be CO. $CO_2$, $C_2H_4$, and $CH_3CHO$ etc. by Gas Chromatography and Mass Spectrometer.