Ipropylene oxide luhlobo lwezinto ezibalulekileyo zekhemikhali ekrwada kunye ne-intermediates, esetyenziswa ngokubanzi kwimveliso ye-polyether polyols, i-polyester polyols, i-polyurethane, i-polyester, i-plasticizers, i-surfactants kunye namanye amashishini. Okwangoku, imveliso yepropylene oxide yahlulwe kakhulu yaba ziindidi ezintathu: i-chemical synthesis, i-enzyme catalytic synthesis kunye ne-biological fermentation. Ezi ndlela zintathu zineempawu zazo kunye nobubanzi besicelo. Kweli phepha, siya kuhlalutya imeko yangoku kunye nenkqubela phambili yeteknoloji yokuvelisa ipropylene oxide, ngokukodwa iimpawu kunye neenzuzo zeentlobo ezintathu zeendlela zokuvelisa, kwaye uthelekise imeko yaseChina.

Okokuqala, indlela ye-chemical synthesis ye-propylene oxide yindlela yendabuko, enenzuzo yobuchwepheshe obuvuthiweyo, inkqubo elula kunye neendleko eziphantsi. Inembali ende kunye namathemba osetyenziso olubanzi. Ukongeza, indlela yokwenziwa kweekhemikhali ingasetyenziselwa ukuveliswa kwezinye izinto ezibalulekileyo zeekhemikhali ekrwada kunye ne-intermediates, njenge-ethylene oxide, i-butylene oxide kunye ne-styrene oxide. Nangona kunjalo, le ndlela nayo ineengxaki ezithile. Ngokomzekelo, i-catalyst esetyenzisiweyo kwinkqubo ihlala iguquguquka kwaye iyancipha, eya kubangela umonakalo kwisixhobo kunye nongcoliseko lwendalo. Ukongezelela, inkqubo yokuvelisa idinga ukusebenzisa amandla amaninzi kunye nemithombo yamanzi, eya kwandisa iindleko zemveliso. Ke ngoko, le ndlela ayifanelekanga kwimveliso enkulu eTshayina.

Okwesibini, indlela ye-enzyme catalytic synthesis yindlela entsha ephuhliswe kwiminyaka yakutshanje. Le ndlela isebenzisa i-enzymes njenge-catalysts ukuguqula ipropylene ibe yipropylene oxide. Le ndlela ineenzuzo ezininzi. Ngokomzekelo, le ndlela inezinga eliphezulu lokuguqulwa kunye nokukhetha kwe-enzyme catalyst; inongcoliseko oluphantsi kunye nokusetyenziswa kwamandla amancinci; inokuqhutywa phantsi kweemeko zokusabela kancinci; inokuvelisa ezinye izinto ezibalulekileyo zemichiza ekrwada kunye neziphakathi ngokutshintsha ii-catalysts. Ukongeza, le ndlela isebenzisa i-biodegradable non-toxic compounds njenge-reaction solvents okanye iimeko ezingenayo i-solvent ukuze isebenze ngokuzinzileyo kunye neempembelelo ezincitshisiweyo zokusingqongileyo. Nangona le ndlela ineengenelo ezininzi, kusekho iingxaki ezifuna ukusonjululwa. Ngokomzekelo, ixabiso le-enzyme catalyst liphezulu, eliya kwandisa iindleko zokuvelisa; i-enzyme catalyst kulula ukuba ingasebenzi okanye ingasebenzi kwinkqubo yokusabela; ukongeza, le ndlela isekwinqanaba lelebhu okwangoku. Ngoko ke, le ndlela idinga uphando olungakumbi kunye nophuhliso lokusombulula ezi ngxaki ngaphambi kokuba isetyenziswe kwimveliso yemizi-mveliso.

Okokugqibela, indlela yebhayoloji yokubilisa ikwayindlela entsha ephuhliswe kwiminyaka yakutshanje. Le ndlela isebenzisa i-microorganisms njenge-catalysts ukuguqula ipropylene ibe yipropylene oxide. Le ndlela ineenzuzo ezininzi. Umzekelo, le ndlela inokusebenzisa izixhobo ezivuselelekayo ezifana nenkunkuma yezolimo njengezinto ezikrwada; inongcoliseko oluphantsi kunye nokusetyenziswa kwamandla amancinci; inokuqhutywa phantsi kweemeko zokusabela kancinci; inokuvelisa ezinye izinto ezibalulekileyo zekhemikhali ekrwada kunye ne-intermediate ngokutshintsha ii-microorganisms. Ukongeza, le ndlela isebenzisa i-biodegradable non-toxic compounds njenge-reaction solvents okanye iimeko ezingenayo i-solvent ukuze isebenze ngokuzinzileyo kunye neempembelelo ezincitshisiweyo zokusingqongileyo. Nangona le ndlela ineengenelo ezininzi, kusekho iingxaki ezifuna ukusonjululwa. Ngokomzekelo, i-microorganism catalyst kufuneka ikhethwe kwaye ihlolwe; izinga lokuguqulwa kunye nokukhethwa kwe-microorganism catalyst iphantsi; kufuneka ifundwe ngakumbi indlela yokulawula iiparameters zenkqubo ukuqinisekisa ukusebenza okuzinzileyo kunye nokusebenza kakuhle kwemveliso; le ndlela ikwadinga uphando olongezelelweyo kunye nophuhliso phambi kokuba isetyenziswe kwinqanaba lemveliso yemizi-mveliso.

Ukuqukumbela, nangona indlela yokwenziwa kweekhemikhali inembali ende kunye namathemba osetyenziso olubanzi, ineengxaki ezithile ezinjengongcoliseko kunye nokusetyenziswa okuphezulu kwamandla. Indlela ye-Enzyme catalytic synthesis kunye nendlela yebhayoloji yokuvubela ziindlela ezintsha ezinongcoliseko oluphantsi kunye nokusetyenziswa kwamandla amancinci, kodwa zisafuna uphando olungakumbi kunye nophuhliso ngaphambi kokuba zisetyenziswe kwinqanaba lemveliso yemizi-mveliso. Ukongezelela, ukuze sifezekise imveliso enkulu yepropylene oxide eChina kwixesha elizayo, kufuneka someleze utyalo-mali lwe-R & D kwezi ndlela ukuze zibe nokusebenza kakuhle kwezoqoqosho kunye nethemba lokusetyenziswa ngaphambi kokuba kuphuhliswe imveliso enkulu.