TAILIEUCHUNG - NON-WOOD PLANTS AS RAW MATERIAL FOR PULP AND PAPER

High cooking temperature and thus high pressure is needed when alcohols are used as cooking chemicals. Methanol has been used as an additive in kraft, sulphite and soda pulping. However, the use of methanol may be hazardous, since methanol is a highly flammable and toxic chemical. Demonstration plants using the alkaline sulphite-anthraquinone-methanol process (ASAM) (Patt & Kordsachia 1986, Khristova et al. 2002, Patt et al. 1999) and the soda pulping method with methanol (Organocell) (Schroeter & Dahlmann 1991) have been built. The active cooking chemicals of the ASAM process are sodium hydroxide, sodium carbonate and sodium sulphite. The addition of. | AGRICULTURAL AND FOOD SCIENCE IN FINLAND Non-wood plants as raw material for pulp and paper Katri Saijonkari-Pahkala MTTAgrifood Research Finland Plant Production Research FIN-31600 Jokioinen Finland e-mail ACADEMIC DISSERTATION To be presented with the permission of the Faculty of Agriculture and Forestry University of Helsinki for public criticism at Infokeskus Korona Auditorium 1 on November 30 2001 at 12 o clock. Supervisors Professor Pirjo Peltonen-Sainio Plant Production Research MTT Agrifood Research Finland Jokioinen Finland Professor Timo Mela Plant Production Research MTT Agrifood Research Finland Jokioinen Finland Reviewers Dr. Staffan Landstrom Swedish University of Agricultural Sciences Umeẳ Sweden Professor Bruno Lonnberg Laboratory of Pulping Technology Abo Akademi University Turku Finland Opponent Dr. Iris Lewandowski Department of Science Technology and Society Utrecht University Utrecht the Netherlands Custos Professor Pirjo Makela Department of Applied Biology University of Helsinki Helsinki Finland AGRICULTURAL AND FOOD SCIENCE IN FINLAND KSP 2001 A new fiber crop must fit the technical requirements for processing into pulp of acceptable quality in high yield and must also be adaptable to practical agricultural methods and economically produce high yield of usable dry matter per acre . Nieschlag et al. 1960

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