ТЕХНОЛОГИЯ ПОЛУЧЕНИЯ КСИЛИТА ИЗ ПИВНОЙ ДРОБИНЫ МЕТОДАМИ ОДНОВРЕМЕННОГО ГИДРОЛИЗА И ГИДРИРОВАНИЯ

Аннотация

Subjects of the inquiry: beer fraction is a waste of the beer production in the ALR “Shymkcntpivo”, xylans of beer fraction, catalyzators having stability from acids. Aim of the inquiry: development of methods of Xylite obtaining from beer fraction by methods of simultaneous hydrolysis and hydrogenization of beer fraction’s polysaccarides in the presence of promoted catalyzators on the basis of copper, cobalt and nickel. Methods of inquiry: physical-chemical, IR-spcctroscopy, gas-liquid chromatography, electron microscopy. The results achieved and their novelty: novelty of thesis is included in the development of scientifically-technical basis of efficient technology of Xylite obtaining from beer fraction by method of joint hydrolysis of polysaccarides and hydrogenization of formed Xylose. Chemical composition of Xylans of beer fraction have been established and it is proved that beer fraction can be perspective pentose-containing raw material for hydrolysis; the possibility of implementation of hydrolysis process of Xylans into autocatalitical “acidless” regime have been established the scientifically-technical basis of hydrolysis and hydrogenization of beer fractions’ polysaccharides in the devices of columned type of original construction have been developed; selection of efficient hydrogenization catalyzators that have stability from acids and admixtures of Xylose solutions have been implemented; the optimum conditions of autocatalytical hydrolysis process and hydrogenization of beer fraction’s polysaccharides have been determined by method of mathematical planning of the experiment. Practical value: for the first time on the base of results of investigations the methods of synthesis and resource-and energy-saving technology of Xylite obtaining from beer fraction by way of simultaneous hydrolysis and hydrogenization have been developed which is approved in real experienced-industrial conditions. Realization in practice the results of given investigation decides the following important problems: the domestic production of Xylite with ability to competition on the principal new technology by way of development and inculcation of highly rated processes arc created; the waste of beer production -beer fraction arc rationally used that provides the improvement of the ecological situation in zone of beer production and provides the maximum profit at minimum of expenseses. Degree of embed and economic effectivity: developed technology passed the experienced-industrial tests in research institute of chemical technology and industrial ecology (Shymkent), the obtained Xylite meets the demands of TX - 64-10-04-89 on the organoleptic and physical-chemical properties. At the averagt of production 2000 tone of crystalline xylite a year at the it’s sail on the minimum world price 10 000 dollars fors 1 tone the expected profit will be 4.359,4 dollars fors 1 tone of xylite. Sphere of usage: hydrolytic industry, processiong of beer fractions’ wastes.