Isithwali se-Catalyst siyingxenye ekhethekile yesithwali esiqinile, isisabalalisi, isibambi, isithwali esingesihle sengxenye esebenzayo ye-catalyst, futhi ngezinye izikhathi i-ACTS njenge-co-catalyst noma i-co-catalyst. Isithwali se-Catalyst, esaziwa nangokuthi ukwesekwa, singenye yezingxenye ze-catalyst esekelwayo. Ngokuvamile, siyinto enezimbobo enendawo ethile ethile, futhi ingxenye esebenzayo ye-catalyst ivame ukunamathela kuyo. Isithwali sisetshenziswa kakhulu ukusekela ingxenye esebenzayo, ukuze i-catalyst ibe nezici ezithile zomzimba, kuyilapho isithwali ngokwaso ngokuvamile singenawo umsebenzi we-catalytic.
Izidingo zokusekela i-Catalyst
1, inganciphisa ukuminyana kwezingxenye ezisebenzayo, ikakhulukazi izinsimbi eziyigugu
2, ingalungiswa ibe yisimo esithile
3. Ukucwilisa phakathi kwezingxenye ezisebenzayo kungavinjelwa ngezinga elithile
4, ingamelana nobuthi
5. Kungaba nomphumela ofanayo nesakhi esisebenzayo kanye nesikhuthazi esiyinhloko.
Umphumela wesithwali se-catalyst
1, nciphisa izindleko ze-catalyst
2, ukuthuthukisa amandla okusebenza kwe-catalyst
3. Thuthukisa ukuzinza kokushisa kwe-catalyst
4, engeza umsebenzi wokuvuselela kanye nokukhetha
5. Yandisa impilo ye-catalyst
Kuthulwa izinkampani eziningana eziyinhloko
1. I-alumina esebenzayo: isithwali esivame ukusetshenziswa kakhulu sama-catalyst ezimboni. Intengo ephansi, ukumelana nokushisa okuphezulu, ukuhambisana okuhle kwezingxenye ezisebenzayo.
2. Ijeli le-Silica: ukwakheka kwamakhemikhali yi-SiO2. Ngokuvamile kwenziwa nge-sodium silicate (na 2 si 3) acid. I-Silicate acid yakhiwa ngemuva komphumela we-sodium silicate kanye ne-asidi. I-Silicic acid polymerization, ukujiya, kanye nesakhiwo se-polymer akuqiniseki.
I-SiO2 iyisithwali esisetshenziswa kabanzi, kodwa ukusetshenziswa kwayo kwezimboni kungaphansi kwe-Al2O3, okubangelwa ubunzima bokulungiselela, ukuqina okubuthakathaka kwezingxenye ezisebenzayo, ukusha kalula ngomhwamuko wamanzi nezinye izinkinga.
3. I-Diatomite: i-SiO2 yemvelo. Iqukethe ama-oxide ensimbi ambalwa kanye nezinto eziphilayo, kanye nesakhiwo sayo se-pore kanye noshintsho oluthile lobuso oluvela kuyo. Ukwelashwa nge-asidi kufanele kusetshenziswe ngaphambi kokusetshenziswa. Okokuqala ukuthuthukisa okuqukethwe kwe-SiO2 nokwandisa ubuso obuthile, ivolumu ethile ye-pore kanye ne-radius eyinhloko ye-pore. Okwesibili ukuthuthukisa ukuzinza kokushisa, ngemuva kokwelashwa nge-asidi, kungandisa kakhulu ubuso obuthile. I-Diatomite isetshenziswa ngokuyinhloko ukulungiselela ama-catalyst aqinile.
4, ikhabhoni esebenzayo: isithako esiyinhloko yi-C, equkethe i-H, O, N, S kanye nomlotha, njll.. Ikhabhoni esebenzayo inesakhiwo esingajwayelekile se-stone mill, kuneqembu le-carbonyl, iqembu le-quinone, iqembu le-hydroxyl kanye neqembu le-carboxyl ebusweni. Ikhabhoni esebenzayo ibonakala ngama-pores athuthukile kanye nendawo enkulu yobuso, ukuzinza kokushisa kanye nokuphakama.
5. I-TiO2: inezinhlobo ezintathu zekristalu: i-anatase, i-plate titanium kanye ne-rutile. I-sheet titanium ore kunzima ukuyihlanganisa ngenxa yokungazinzi; I-Anatase yakhiwa ekushiseni okuphansi okunobuningi obungama-3.84 kanye nendawo enkulu yobuso obuthile. Uma ishiswa ku-600 ~ 1000°C, i-anatase iba i-rutile, enobukhulu obungama-4.22 kanye nendawo encane yobuso obuthile.
6. I-silicon carbide: izinga lokuncibilika kwe-carbide ceramics liphakeme kuno-2000°C, linokushisa okuphezulu, ubulukhuni obuphezulu, ukumelana nokushisa okunamandla kanye nokumelana nomthelela, kodwa limane li-oxidized emoyeni we-oxygen. Ngakho-ke i-SiC ivame ukusetshenziswa njengesithwali se-catalyst endaweni eshisa kakhulu.
7. Isihlungi sama-molecule: siyi-crystalline silicate noma i-silicoaluminate, uhlelo lwe-pore kanye ne-cavity olwakhiwe yi-silico-oxygen tetrahedron noma i-alumino-aluminium tetrahedron exhunywe yizibopho ze-oxygen bridge. Inokusimama okuphezulu kokushisa, ukuzinza kokushisa kwamanzi kanye nokumelana ne-asidi ne-alkali
Isikhathi sokuthunyelwe: Agasti-10-2019