Izindaba
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Ukusetshenziswa kwe-ZSM ye-molecular sieve njenge-catalyst ye-isomerization
I-ZSM molecular sieve iwuhlobo lwe-crystalline silicaluminate enobukhulu obuhlukile bembotshana nokuma kwayo, esetshenziswe kabanzi ekuphenduleni kwamakhemikhali okuhlukahlukene ngenxa yokusebenza kwayo okuhle kakhulu kwe-catalytic. Phakathi kwazo, ukusetshenziswa kwe-ZSM ye-molecular sieve emkhakheni we-isomerization catalyst has attra...Funda kabanzi -
I-acidity engaphezulu ye-ZSM molecular sieve
I-acidity engaphezulu ye-ZSM ye-molecular sieve ingenye yezakhiwo zayo ezibalulekile njenge-catalyst. Le acidity ivela kuma-athomu e-aluminium kuhlaka lwamathambo lwesisefo, olunganikeza ama-proton ukuze akhe indawo ene-protonated. Le ndawo ene-protonated ingabamba iqhaza ezinhlobonhlobo zokusabela kwamakhemikhali...Funda kabanzi -
Umthelela wesilinganiso se-Si-Al kusihlungi se-molecular ye-ZSM
I-Si/Al ratio (i-Si/Al ratio) iyimpahla ebalulekile ye-ZSM molecular sieve, ebonisa okuqukethwe okuhlobene kuka-Si no-Al esisefweni samangqamuzana. Lesi silinganiso sinomthelela obalulekile emsebenzini nasekukhetheni kwe-ZSM ye-molecular sieve. Okokuqala, isilinganiso se-Si/Al singathinta i-acidity ye-ZSM m...Funda kabanzi -
I-ZSM molecular sieve
I-ZSM molecular sieve iwuhlobo lwe-catalyst enesakhiwo esiyingqayizivele, esibonisa ukusebenza okuhle kakhulu ekuphenduleni kwamakhemikhali amaningi ngenxa yokusebenza kwayo okuhle kakhulu kwe-asidi. Okulandelayo ezinye zezisusa nokusabela okungase kusetshenziselwe izisefo ze-molecular ZSM: 1. I-Isomerization reaction: ZSM molecular si...Funda kabanzi -
Ucwaningo ngobubanzi bokusetshenziswa kwe-silica gel desiccant
Ekukhiqizeni nasekuphileni, ijeli ye-silica ingasetshenziswa ukomisa i-N2, umoya, i-hydrogen, igesi yemvelo [1] njalonjalo. Ngokusho kwe-asidi ne-alkali, i-desiccant ingahlukaniswa ibe: i-acid desiccant, i-alkaline desiccant kanye ne-desiccant engathathi hlangothi [2]. Ijeli ye-silica ibonakala ingomisi ongathathi hlangothi obonakala bomisa i-NH3, HCl, SO2, ...Funda kabanzi -
Indlela yokwenza i-silica gel?
Ijeli ye-silica iwuhlobo lwempahla ye-adsorption esebenza kakhulu. Kuyinto e-amorphous futhi ifomula yayo yamakhemikhali ithi mSiO2.nH2O. Ihlangabezana nejwayelekile yamakhemikhali aseShayina i-HG/T2765-2005. Kuyinto ye-desiccant eluhlaza evunywe yi-FDA engathintana ngokuqondile nokudla nezidakamizwa. Ijeli ye-silica ine...Funda kabanzi -
I-Grace Scientist Yuying Shu's Discovery Ithuthukisa Ukusebenza Kwe-FCC Catalyst kanye Nobungani Bendawo
E-COLOMBIA, MD, Novemba 16, 2020 (GLOBE NEWSWIRE) - WR Grace & Co. (NYSE: GRA) umemezele namuhla ukuthi Usosayensi Omkhulu u-Yuying Shu uhlonishwe ngokutholwa komenzeli osenelungelo lobunikazi, owine phezulu weGrace Stable enomsebenzi othuthukisiwe. (GSI) ye-Rare Earth Tec...Funda kabanzi -
I-catalyst carrier kanye ne-zeolite
Sisebenzisa amakhukhi ukuthuthukisa ulwazi lwakho. Ngokuqhubeka nokuphequlula leli sayithi, uyavumelana nokusebenzisa kwethu amakhukhi. Ulwazi olwengeziwe. Lesi sihloko sigxile ku-acidity engaphezulu kwezakhi ze-oxide catalysts nezisekelo (γ-Al2O3, CeO2, ZrO2, Si...Funda kabanzi
