The use of zeolites for biogas purification in agricultural production

Abstract

The article refers to studies related to the purification of biogas. Biogas is obtained by fermenting of native manure. Biogas is obtained as a result of fermentation of native manure with subsequent purification from unwanted impurities. After purification, the content of methane in biofuel rises, therefore the quality of alternative fuel improves. The results of studies on the use of natural zeolites of the Khonguruu deposit in the Suntarskyulus of the Republic of Sakha (Yakutia) as a filter material are presented. The device of the filter for biogas is described.The materials for planning a multifactorial experiment are briefly presented. The most significant factors of the biogas purification process have been specified: size of fractions, zeolite mass, ratio of the height of bulk material to the diameter of the filter. It is shown that the maximum efficiency of biogas purification was obtained with the ratio of the height and diameter of the filter H/d = 3.0: 4.2. The optimal average weighted diameter of the granules of the bulk filter material (zeolite) is 0.004 m. The optimum mass of the filter material is 0.75-0.8 kg. At the filter outlet, biogas with 93.3%of methane content wasobtained.