A porous, catalytically active membrane based on coarse silicon carbide has been synthesized. To synthesize the membrane, ultradispersed additives of the eutectic composition of magnesium oxide and silicon carbide were introduced into the initial SiC powder, which, during sintering at temperatures in the range from 1100 to 1450 & # 176; C, form a liquid phase in the form of clinoenstatite MgSiO 3 , which wets the coarse SiC particles and forms a porous strong membrane framework. The dependence of the pore size of the ceramic material on the pressing pressure was investigated, which made it possible to obtain a highly porous ceramic membrane with pores of the most optimal size for the dehydrogenation of ethylbenzene to styrene. To give the synthesized membrane the catalytic properties required for the dehydrogenation process, the pore surface is modified to 10 & # 37; Re & ndash; W active ingredients using the alkox method
Cand. tech. Sci. V. I. UVAROV
1 (
е-mail: This email address is being protected from spambots. You need JavaScript enabled to view it. ), Cand. tech. R.D. KAPUSTIN
1 , Ph.D. tech. Sciences A. S. FEDOTOV
2 , A.O. Kirillov
1 ;
1 FGBUN
& # 171; Institute of Structural Macrokinetics and Problems of Materials Science named after A.G. Merzhanov of the
Russian Academy of Sciences & # 187; (ISMAN) (Russia, Chernogolovka)
2 FGBUN
& # 171; Order of the Red Banner of Labor Institute of Petrochemical Synthesis. A. V. Topchiev of the Russian Academy of Sciences & # 187; (TIHS RAS) (Russia, Moscow)
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