Chonyamulira cha catalyst ndi gawo lapadera la chonyamulira cholimba, chogawaniza, chomangira, chonyamulira choyipa cha gawo logwira ntchito la chonyamulira, ndipo nthawi zina ACTS ngati chonyamulira chophatikiza kapena chophatikiza. Chonyamulira cha catalyst, chomwe chimadziwikanso kuti chothandizira, ndi chimodzi mwa zigawo za chonyamulira chothandizira. Nthawi zambiri, ndi chinthu chokhala ndi mabowo chokhala ndi malo enaake, ndipo gawo logwira ntchito la chonyamulira nthawi zambiri limalumikizidwa nacho. Chonyamuliracho chimagwiritsidwa ntchito makamaka kuthandizira gawo logwira ntchito, kotero kuti chonyamuliracho chimakhala ndi mawonekedwe enieni akuthupi, pomwe chonyamuliracho chokha nthawi zambiri sichikhala ndi ntchito yothandiza.
Zofunikira pa chithandizo cha Catalyst
1, imatha kuchepetsa kuchuluka kwa zinthu zogwira ntchito, makamaka zitsulo zamtengo wapatali
2, ikhoza kukonzedwa mu mawonekedwe enaake
3. Kuwonongeka pakati pa zinthu zogwira ntchito kungapewedwe mpaka pamlingo winawake
4, akhoza kukana poizoni
5. Zitha kukhala ndi zotsatira zofanana ndi gawo logwira ntchito komanso chothandizira chachikulu.
Zotsatira za chonyamulira chothandizira
1, kuchepetsa mtengo wa chothandizira
2, kuwongolera mphamvu ya makina a chothandizira
3. Kupititsa patsogolo kukhazikika kwa kutentha kwa catalyst
4, onjezerani ntchito yothandiza komanso kusankha bwino
5. Kutalikitsa moyo wa catalyst
Magalimoto ambiri oyambira ayambitsidwa
1. Alumina yogwiritsidwa ntchito: chonyamulira chomwe chimagwiritsidwa ntchito kwambiri pa zosakaniza zamafakitale. Mtengo wotsika, kukana kutentha kwambiri, komanso kugwirizana bwino ndi zinthu zogwira ntchito.
2. Silika gel: kapangidwe ka mankhwala ndi SiO2. Kawirikawiri amapangidwa kuchokera ku sodium silicate (na 2 si 3) acid. Silikate acid idapangidwa pambuyo pa zotsatira za sodium silicate ndi acid. Silicic acid polymerization, condensation, ndi kapangidwe ka polima sikudziwika.
SiO2 ndi chonyamulira chomwe chimagwiritsidwa ntchito kwambiri, koma ntchito yake m'mafakitale ndi yochepera Al2O3, zomwe zimachitika chifukwa cha zovuta pakukonza, kusagwirizana kofooka ndi zinthu zogwira ntchito, kusunthika mosavuta ndi nthunzi yamadzi ndi zolakwika zina.
3. Diatomite: SiO2 yachilengedwe. Ili ndi ma oxides ndi zinthu zina zachilengedwe, komanso kapangidwe kake ka ma pore ndi kusintha kwapadera kwa pamwamba potengera komwe kumachokera. Chithandizo cha asidi chiyenera kugwiritsidwa ntchito musanagwiritse ntchito. Choyamba ndikuwongolera kuchuluka kwa SiO2 ndikuwonjezera pamwamba pake, kuchuluka kwa ma pore ndi radius yayikulu ya ma pore. Chachiwiri ndikuwongolera kukhazikika kwa kutentha, pambuyo pa chithandizo cha asidi, imatha kuwonjezera pamwamba pake. Diatomite imagwiritsidwa ntchito makamaka kukonzekera ma catalyst okhazikika.
4, mpweya woyatsidwa: chinthu chachikulu ndi C, chomwe chili ndi H, O, N, S ndi phulusa, ndi zina zotero. Mpweya woyatsidwa uli ndi kapangidwe kosasinthasintha ka mphero ya miyala, pali gulu la carbonyl, gulu la quinone, gulu la hydroxyl ndi gulu la carboxyl pamwamba. Mpweya woyatsidwa umadziwika ndi ma pores opangidwa bwino komanso malo akuluakulu pamwamba, kukhazikika kwa kutentha komanso kukwera.
5. TiO2: ili ndi mawonekedwe atatu a kristalo: anatase, titaniyamu ya mbale ndi rutile. Mapepala a titaniyamu ndi ovuta kupanga chifukwa cha kusakhazikika; Anatase imapangidwa pa kutentha kotsika ndi kachulukidwe ka 3.84 ndi malo akuluakulu apadera. Akatenthedwa pa 600 ~ 1000°C, anatase imakhala rutile, yomwe ili ndi kachulukidwe ka 4.22 ndi malo ang'onoang'ono apadera.
6. Silikoni carbide: kutentha kwa carbide ceramics kumakhala kokwera kuposa 2000°C, komwe kumatentha kwambiri, kuuma kwambiri, kukana kutentha kwambiri komanso kukana kukhudza, koma kumasungunuka mumlengalenga wa mpweya. Chifukwa chake SiC nthawi zambiri imagwiritsidwa ntchito ngati chonyamulira cha catalyst mumlengalenga wotentha kwambiri.
7. Sefa ya mamolekyu: ndi kristalo silicate kapena silicoaluminate, dongosolo la pore ndi cavity lopangidwa ndi tetrahedron ya silico-oxygen kapena tetrahedron ya alumino-aluminium yolumikizidwa ndi ma bond a oxygen bridge. Ili ndi kukhazikika kwakukulu kwa kutentha, kukhazikika kwa kutentha kwa madzi komanso kukana asidi ndi alkali.
Nthawi yotumizira: Ogasiti-10-2019