METHOD FOR TREATING AND SEPARATING MIXED CELLULOSE-PLASTIC PRODUCTS
申请公布号:EP2850244(A2)
申请号:EP20130727532
申请日期:2013.05.15
申请公布日期:2015.03.25
发明人:BUSCH, GÜNTER;BURKHARDT, MARKO;WEGNER, JENS-ERIK
分类号:D21C1/02;B03B1/00;B09B3/00;C02F3/00;C10L5/40;C13K1/00;D21C3/00;D21C5/00;D21C7/10
主分类号:D21C1/02
摘要:The invention relates to a method for separating mixed cellulose-plastic products, wherein the following steps are carried out: a) slurrying the mixed cellulose-plastic products with water; b) introducing the slurry produced in step a) into a stirred autoclave and closing the stirred autoclave; c) heating the slurry during continued stirring at a rotational speed of 50 to 350 min-1 to a temperature of 150 to 250°C, at a pressure of 1.2 to 3.0 MPa; d) holding the temperature and the pressure of the slurry heated in step c) during continued stirring for a holding time of 0.3 to 6 hours, wherein the cellulose is hydrolyzed and the plastics are agglomerated into spherical shapes; e) cooling, relieving the pressure of, and opening the stirred autoclave. The separated cellulose hydrolysate can be used for the production of biogas by means of wet fermentation, optionally with the addition of liquid manure and/or other substrates containing nitrogen, or for denitrification in wastewater treatment plants. The separated spherical plastic agglomerate can be used to produce energy by means of combustion.
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