III International Conference

PP-III-34DESIGN OF THE CATALYST’ FOR THE CLEANING OF THE EXHAUST GASESOF THE MOTOR TRANSPORT WORKING WITH METHANEGilmundinov Sh.A., Sassykova L.R., Nalibaeva A.M.D.V. Sokolsky Institute of Organic Catalysis and Electrochemisrty MS&HE RK,Almaty, Republic of KazakhstanE-mail: aray77@mail.ruThe Ag-Mn catalysts promoted by 0,1% Pt at the block metal carriers with thehoneycomb channels structure were elaborated and they were tested at the “poor” mixtures.For the efficient wastes lowering at the “poor” mixtures ordinary two catalysts (with the sizes45x50 mm every sample) were used in front of the turbocompressor and two catalysts (withthe sizes 110x90 mm) on the spot of the regular silencer were placed. The cleaning efficacywas by NO x -59%, CH x -76%, CO-99%. Thus as its followed from the tests results the Ag-Mncatalysts using in both complete set led to the improvement was equal to European standardsby the wastes.Every year the transport development and increase of its using in the different loadtransportation is growing. This in its turn lead to a marked atmosphere pollution by the toxicgases which fatal influence on flora and fauna. The engine current characteristicsimprovement and transition to another alternative fuels reduce the total volume of the wastesbut even the transport transfer to the “blue” fuel doesn’t solve the ecological problem. At thesame time with the toxic gases also the hydrocarbons, nitric oxides, carbon oxide are presentand their concentrations lowering is possible to reach by only catalytic method.We carried out the comparative researchings by using catalytic neutralizers of the wastegases at KamAZ (model 820.52-260) with the turbo-inflatable gas engine which was workingat methane with the foil injection distribution and the electronic management. It was revealedthat the catalyst led to considerable lowering of the CO wastes, insignificant decrease of CH 4and it didn’t influence to NO x wastes. The catalytic neutralizers had the low efficacy bymethane neutralization at the rotations of the idle motions and also at the work with the smallloading at the waste gases temperature at the entrance of neutralizer didn’t exceed to 250 0 C.At the engine work with the stoichiometric mixture composite the effect of neutralization ofNO x , CO, CH x to standard Euro III as a result of the oxidation-reduction was observed. Butthe engine economical characteristics got worse. By this reason we carried out the tests of theelaborating Ag-Mn catalysts promoted by 0,1% Pt at the block metal carriers with thehoneycomb channels structure at the “poor” mixtures. For the efficient wastes lowering at the“poor” mixtures work two catalysts (with the sizes 45x50 mm every sample) in front of the532