I-Propylene oxide iwuhlobo lwezinto ezibalulekile zamakhemikhali asetshenziswayo kanye neziphakathi, ezisetshenziswa kakhulu ekukhiqizeni ama-polyether polyols, ama-polyester polyols, i-polyurethane, i-polyester, ama-plasticizers, ama-surfactants nezinye izimboni. Njengamanje, ukukhiqizwa kwe-propylene oxide kuhlukaniswe ikakhulukazi izinhlobo ezintathu: ukuhlanganiswa kwamakhemikhali, ukuhlanganiswa kwe-enzyme catalytic kanye nokuvutshelwa kwezinto eziphilayo. Izindlela ezintathu zinezici zazo kanye nobubanzi bokusebenza. Kuleli phepha, sizohlaziya isimo samanje nomkhuba wokuthuthukiswa kobuchwepheshe bokukhiqiza i-propylene oxide, ikakhulukazi izici nezinzuzo zezinhlobo ezintathu zezindlela zokukhiqiza, futhi siqhathanise isimo saseShayina.

Okokuqala, indlela yokuhlanganisa amakhemikhali ye-propylene oxide iyindlela yendabuko, enezinzuzo zobuchwepheshe obuvuthiwe, inqubo elula kanye nezindleko eziphansi. Inomlando omude kanye namathemba okusebenza abanzi. Ngaphezu kwalokho, indlela yokuhlanganisa amakhemikhali ingase isetshenziselwe ukukhiqizwa kwezinye izinto ezibalulekile zamakhemikhali asetshenziswayo kanye neziphakathi, njenge-ethylene oxide, i-butylene oxide ne-styrene oxide. Nokho, le ndlela nayo inezinye izinkinga. Isibonelo, i-catalyst esetshenziswe kule nqubo ivame ukuguquguquka futhi idle, okuzodala ukulimala kwempahla kanye nokungcoliswa kwemvelo. Ngaphezu kwalokho, inqubo yokukhiqiza idinga ukusebenzisa amandla amaningi kanye nemithombo yamanzi, okuzokwandisa izindleko zokukhiqiza. Ngakho-ke, le ndlela ayifanele ukukhiqizwa okukhulu eChina.

Okwesibili, indlela ye-enzyme catalytic synthesis iyindlela entsha eyakhiwe eminyakeni yamuva. Le ndlela isebenzisa ama-enzyme njengama-catalysts ukuguqula i-propylene ibe yi-propylene oxide. Le ndlela inezinzuzo eziningi. Isibonelo, le ndlela inezinga eliphezulu lokuguqulwa kanye nokukhetha kwe-enzyme catalyst; inokungcola okuphansi kanye nokusebenzisa amandla amancane; kungenziwa ngaphansi kwezimo zokusabela okuncane; ingase futhi ikhiqize ezinye izinto ezibalulekile zamakhemikhali zokusetshenziswa kanye neziphakathi ngokushintsha ama-catalysts. Ukwengeza, le ndlela isebenzisa izinhlanganisela ezingenabo ubuthi ezingaboli njengezincibilikisi ezisabelayo noma izimo ezingancibilikiyo ukuze kusebenze okusimeme okunomthelela oncishisiwe kwezemvelo. Nakuba le ndlela inezinzuzo eziningi, kusenezinkinga ezithile okufanele zixazululwe. Isibonelo, intengo ye-enzyme catalyst iphezulu, ezokwandisa izindleko zokukhiqiza; i-enzyme catalyst kulula ukuthi ingasebenzi noma ingasebenzi enqubweni yokusabela; ngaphezu kwalokho, le ndlela isesigabeni saselabhorethri kulesi sigaba samanje. Ngakho-ke, le ndlela idinga ucwaningo nokuthuthukiswa okwengeziwe ukuze kuxazululwe lezi zinkinga ngaphambi kokuthi isetshenziswe ekukhiqizeni izimboni.

Okokugcina, indlela ye-biological fermentation nayo iyindlela entsha eyakhiwe eminyakeni yamuva. Le ndlela isebenzisa ama-microorganisms njengama-catalysts ukuguqula i-propylene ibe yi-propylene oxide. Le ndlela inezinzuzo eziningi. Isibonelo, le ndlela ingasebenzisa izinsiza ezivuselelekayo ezifana nemfucuza yezolimo njengempahla eluhlaza; inokungcola okuphansi kanye nokusebenzisa amandla amancane; kungenziwa ngaphansi kwezimo zokusabela okuncane; ingase futhi ikhiqize ezinye izinto ezibalulekile zamakhemikhali asetshenziswayo kanye neziphakathi ngokushintsha ama-microorganisms. Ukwengeza, le ndlela isebenzisa izinhlanganisela ezingenabo ubuthi ezingaboli njengezincibilikisi ezisabelayo noma izimo ezingancibilikiyo ukuze kusebenze okusimeme okunomthelela oncishisiwe kwezemvelo. Nakuba le ndlela inezinzuzo eziningi, kusenezinkinga ezithile okufanele zixazululwe. Isibonelo, i-microorganism catalyst idinga ukukhethwa futhi ihlolwe; izinga lokuguqulwa kanye nokukhetha kwe-microorganism catalyst iphansi kakhulu; kudingeka kuqhutshekwe kufundwe indlela yokulawula imingcele yenqubo ukuze kuqinisekiswe ukusebenza okuzinzile kanye nokusebenza kahle kokukhiqiza okuphezulu; le ndlela futhi idinga ucwaningo nokuthuthukiswa okwengeziwe ngaphambi kokuthi isetshenziswe esigabeni sokukhiqiza ezimbonini.

Sengiphetha, nakuba indlela yokuhlanganisa amakhemikhali inomlando omude kanye namathemba okusebenza abanzi, inezinkinga ezithile ezinjengokungcola nokusetshenziswa okuphezulu kwamandla. Indlela ye-enzyme catalytic synthesis kanye nendlela yokuvutshelwa kwezinto eziphilayo izindlela ezintsha ezinokungcola okuphansi kanye nokusetshenziswa kwamandla amancane, kodwa zisadinga ucwaningo nokuthuthukiswa okwengeziwe ngaphambi kokuba zisetshenziswe esigabeni sokukhiqiza ezimbonini. Ukwengeza, ukuze kuzuzwe ukukhiqizwa okukhulu kwe-propylene oxide e-China esikhathini esizayo, kufanele siqinise ukutshalwa kwezimali kwe-R&D kulezi zindlela ukuze zibe nokusebenza kahle komnotho kanye namathemba okufaka isicelo ngaphambi kokuba kutholakale ukukhiqizwa okukhulu.