Yaroslavl, Yaroslavl, Russian Federation
Yaroslavl, Yaroslavl, Russian Federation
Yaroslavl, Yaroslavl, Russian Federation
Yaroslavl, Yaroslavl, Russian Federation
Yaroslavl, Yaroslavl, Russian Federation
UDK 546.723 Трехвалентное железо
Vyyasnen mehanizm vliyaniya promotorov na keramicheskuyu strukturu zhelezooksidnogo katalizatora degidrirovaniya olefinovyh i alkilaromaticheskih uglevodorodov. Pokazana dinamika izmeneniya poristoy struktury legirovannyh i nelegirovannyh katalizatorov v rezul'tate termoobrabotki na vozduhe pri neskol'kih temperaturah, znachitel'no prevyshayuschih temperaturu ekspluatacii. Predstavleny dannye po mehanicheskoy prochnosti legirovannyh i nelegirovannyh model'nyh katalizatorov. V mestah kontakta globul proishodit pripekanie chastic drug k drugu. Pri etom obrazuetsya mehanicheski prochnyy i termicheski ustoychivyy karkas. Opredelena funkciya promotora – kaliya v formirovanii poristoy struktury katalizatora. Predpolozheno, chto kaliy vypolnyaet funkciyu svoeobraznogo flyusa, ponizhaet temperaturu obrazovaniya fazy plavleniya, kotoraya obespechivaet prochnoe pripekanie drug k drugu chastic keramicheskogo materiala – katalizatora. Pri etom formiruetsya ustoychivyy karkas bez zametnogo umen'sheniya rabochey poverhnosti katalizatora. Dobavki oksida cirkoniya v kachestve legiruyuschego agenta obespechivayut ne tol'ko uvelichenie glubiny i stepeni otzhiga nesovershenstv pri perestroyke struktury katalizatora, no i pereraspredelenie vydelyayuscheysya energii. Vyskazannoe predpolozhenie podtverzhdaetsya rostom mehanicheskoy prochnosti granul legirovannogo katalizatora. Rezul'taty issledovaniy mogut byt' ispol'zovany dlya sozdaniya i modificirovaniya zhelezooksidnyh katalizatorov degidrirovaniya olefinovyh i alkilaromaticheskih uglevodorodov.
keramicheskaya struktura, poristaya struktura, promotirovanie kaliem, legiruyuschie dobavki cirkoniya, zhelezooksidnyy katalizator
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