FCC Catalyst Dealuminated Y Zeolite: LETSATSI-30, LETSATSI-60 le LETSATSI-120

FCC Catalyst Dealuminated Y Zeolite: LETSATSI-30, LETSATSI-60 le LETSATSI-120

LETSATSI-30, DAY-60 le DAY-120 FCC catalysts ke li-zeolite tsa Y (DAY), tseo ha e le hantle e leng mofuta oa Y zeolite e tsitsitseng haholo (USY), 'me DAY series li-molecular sieves ke e' ngoe ea likarolo tsa bohlokoa tsa li-catalyst tsa FCC indastering ea kajeno ea ho hloekisa oli.

Hobaneng ha FCC e Hloka Molek'hule Sieve Catalyst?

FCC e emetse Fluid Catalytic Cracking, ts'ebetso ea bohlokoa ea phetoho indastering ea tlhoekiso ea oli. Sepheo se seholo sa FCC ke ho fetola likaroloana tse boima tsa peterole hore e be peterole, LPG, propylene, light olefin, diesel le light cycle oli.

Li-catalysts tsa FCC li hloka ho kopana ka nako e le 'ngoe le litlhoko tsa acidity e phahameng, khetho e ntle ea sebopeho, botsitso bo phahameng ba hydrothermal, ho hanyetsa ho thibela ho tima, le ts'ebetso e ntle ea fluidization. Lisefa tsa Y-mofuta oa zeolite molecular molecular sieve ke e 'ngoe ea likarolo tsa mantlha tsa li-catalyst tsa FCC, 'me DAY series of molecular sieves ke Y-type molecular sieve dihlahiswa lebaleng la FCC.

DAY Molecular Sieve ke Eng?

DAY e emetse Dealuminated Y, mme DAY molecular sieve hangata e bolela Y-mofuta oa zeolite o fetotsoeng. DAY molecular sieve ha se moralo o ikemetseng o fapaneng ka ho felletseng le Y-mofuta oa zeolite, empa ke mofuta o phahameng-silica Y-mofuta o entsoeng ka ho kopana ha Y-mofuta oa zeolite.

Ka phekolo ea hydrothermal le lik'hemik'hale, Y-mofuta oa molek'hule sieve e ka tlosa aluminium ea foreimi ka boikhethelo, kahoo ea fetola silica-ho{2}}karolelano ea aluminium, acidity, kabo ea acid center, hydrothermal stability, pore structure, thermal stability, le catalytic selectivity.

'Me li-catalyst tsa FCC li hloka botsitso bo phahameng ba hydrothermal. Ha ho bapisoa le li-sieve tse tloaelehileng tsa mofuta oa Y-, DAY molecular sieve li khona ho mamella boemo bo phahameng-le tikoloho e futhumatsang ea metsi ea li-catalyst tsa FCC.

Sebopeho sa Litšobotsi Tsa LETSATSI Li-Sieve tsa Molek'hule

DAY ke ea mofuta oa Y-mofuta oa sieve ea molek'hule, 'me moralo oa eona o na le topology e tloaelehileng ea FAU. Karolo ea eona e meraro-e hokahaneng ka sebopeho sa microporous e lumella li-reactants le lihlahisoa ho hasana ka har'a kristale.

Dealumination ke e 'ngoe ea mekhoa ea bohlokoa ka ho fetisisa ea ho fetola sebopeho bakeng sa LETSATSI la sieve ea limolek'hule, empa ha se taba feela ea ho fokotsa litaba tsa aluminium. Bakeng sa li-catalysts tsa FCC, ho hloka ho leka-lekana pakeng tsa acidity, sebopeho sa pore, botsitso ba hydrothermal, le catalytic selectivity.

Hobaneng ha DAY Zeolite e le Bohlokoa Bakeng sa Li-Catalysts tsa FCC?

Joalo ka ha ho boletsoe, li-catalyst tsa FCC li hloka ho nchafatsoa khafetsa tlas'a mocheso o phahameng le maemo a mouoane oa metsi, zeolite ea Dealuminated Y (DAY) e bonts'a botsitso bo betere ba hydrothermal ho feta mefuta e tloaelehileng ea Y-lisele tsa molek'hule. Libaka tse nang le asiti ho moralo oa DAY li ka khothaletsa phetoho ea li-hydrocarbon tse boima hore e be lihlahisoa tse bobebe, 'me sebopeho sa eona se ka feto-fetoha le ho kopanngoa le lisebelisoa tsa matrix ho lokisa tšebetso ea catalyst.

Li-catalyst tsa FCC ha li ikemisetse feela ho phatloha ho matla, empa ho e-na le hoo li hloka taolo holim'a ts'ebetso ea ho senya le khetho ea sehlahisoa. DAY zeolite e ka laoloa ka liparamente tse kang silika-ho{2}}karolelano ea aluminium, boholo ba lijo-thollo, asiti, le pore sebopeho.

Haholo-holo, sepheo sa FCC ha e le hantle ha se sieve e hloekileng ea limolek'hule! Ke sistimi e kopaneng e entsoeng ka sieve ea limolek'hule, matrix, binder, le likarolo tse ling tse sebetsang. LETSATSI sieve ea molek'hule ke e 'ngoe ea lisebelisoa tsa mantlha tse sebetsang tsa FCC catalyst, e loketse ho kopantsoe le matrix ea catalyst, ho e-na le ho ba mohloli o feletseng oa FCC ka boeona.

DmaikutloBlipakeng tsa LETSATSI-30, LETSATSI-60Ale LETSATSI-120

LETSATSI-30 Catalyst: E na le tekanyo e tlaase ea dealuminization, e hatisa mosebetsi oa acidity le ho senya, 'me e phehella sekhahla se phahameng sa ho sokoloha, empa e na le tšekamelo e batlang e phahame ea ho hlahisa coke.

LETSATSI-60 Catalyst: E na le tekanyo e itekanetseng ea ho sebetsana le ho leka-lekanya hantle pakeng tsa mosebetsi oa acid le botsitso, e leng se etsang hore e be mofuta o tloaelehileng oa li-catalysts tsa FCC tsa indasteri.

LETSATSI-120 Catalyst: E na le tekanyo e tebileng ea ho sebetsa 'me e phahame{{0}silica, ultra-sefe ea Y molek'hule e tsitsitseng e nang le "hydrothermal stability", mokhoa o fokolang oa ho etsa coke, le nako e telele ea bophelo. E sebetsa ho-litsamaiso tse phahameng tsa tšebetso tsa FCC.

Ho u thusa ho khetha mofuta o nepahetseng oa DAY letoto la li-sieve tsa limolek'hule, ha re etseng papiso e qaqileng haholoanyane: