Application of RDH and Alcell Technology in Ethanol Wheat Straw Pulping

Zhang Yong Shang Jiuhao Abstract Through the use of RDH technology and Alcell method of cooking heating and extraction operation principle, research and design of the operation flow of the cooking heating and extraction part of the ethanol straw system pulping system suitable for small and medium-sized pulp mills. The basic analysis and calculation. Key words rapid displacement heating ethanol extraction pulping environmental protection Design of Heating and Extracting Processes in Ethanol Pulping System of Wheat Straw Zhang Yong Shang Jiuhao (Northwest Institute of Light Industry, Xianyang Shaanxi Province, 712081) ABSTRACT By reference to the RDH technology and The principle of heating-extracting process of Alcell, the authors presented the heating-extracting flowsheet of ethanol pulping system which was designed for the middle-size wheat straw pulp mill, some basic calculations and analysis were also presented.KEYWORDS rapid displacement heating,Alcell Zhang Yong (Northwestern Institute of Light Industry, Xianyang, Shaanxi 712081) Shang Jiuhao (Northwestern Institute of Light Industry, Xianyang, Shaanxi, 712081) References[1] Salman Aziz. Organosolv pulping—a review. Tappi Journal, 1989.3[2] E.Kendall Pye.The AlcellTM Process.Tappi Journal,1991.3[3] Zhang Yong. Ethanol-based wheat straw pulping heating, extraction process and flash evaporation system research design. Northwest light Faculty Dissertation, 1999.5 [4] Zhiming Chen. The basic process and characteristics of modern cooking technology. Hunan Paper, 1997; 1 [5] Wu Fuzhen. Technological advances in rapid displacement heat batch cooking. China Paper, 1995;6[6] Huang Chengxi. Low-energy intermittent cooking technology. Tianjin Paper, 1992; 3[7] Yao Yuying, eds. Principles of Chemical Engineering (upper and lower volumes). Tianjin Science and Technology Press, 1992[8] Chen Haifeng. Ethanol-based wheat straw pulping equipment Research and Design. Northwestern Institute of Light Industry, Master's Thesis, 1998.5 Received: 2000-01-10 (Revised)