Iukwenziwa kwe-formaldehyde, inqubo ebalulekile ezimbonini, idinga ukulawulwa okunembile kokuhlushwa kwe-methanol ne-formaldehyde ngaphakathi ukuqinisekisa ikhwalithi yomkhiqizo, ukusebenza kahle, kanye nokuhambisana nomthetho. I-Formaldehyde, ekhiqizwa nge-catalytic oxidation ye-methanol, iyisici esibalulekile kuma-resin, ama-adhesive, amapulasitiki, kanye nemithi, kodwa ngisho nokuphambuka okuncane kuukuhlushwa kwe-methanolnomaukuhlushwa kwe-formaldehydekungaholela ekubumbeni, ekunciphiseni isivuno, noma ukungalandeli izindinganiso zokuphepha eziqinile.
Izinzwa zokuhlushwa kwe-Methanol,amamitha okuhlushwa kwe-formaldehyde,iziqaphi zokuhlushwa kwe-formaldehyde, futhiabahlaziyi bokuhlushwa kwe-formaldehydeukuhlinzeka ngokuqapha okunembile nesikhathi sangempela, okuvumela abaqhubi bezitshalo ukuthi balondoloze izimo zokusabela ezifanele futhi banciphise ukungasebenzi kahle okubizayo.
Isingeniso Esijwayelekile Senqubo Yamakhemikhali
I-Formaldehyde, ikhemikhali eguquguqukayo esetshenziswa kukho konke kusukela ekunamathiseleni kokhuni kuya ezingxenyeni zemithi, ikhiqizwa nge-catalytic oxidation ye-methanol ezitshalweni zokukhiqiza i-formaldehyde. Ukugcina ukugcwala kwe-methanol okuqhubekayo kanye nokugcwala kwe-formaldehyde kubalulekile ukuze kuhlangatshezwane nezindinganiso zekhwalithi eziqinile.
Izinzwa zokuhlushwa kwe-Methanol kanye nabahlaziyi bokuhlushwa kwe-formaldehyde kungamathuluzi abalulekile ekufinyeleleni lokhu kunemba. Lawa madivayisi ahlinzeka ngedatha yesikhathi sangempela, esusa ukubambezeleka namaphutha ahlobene nokusampula ngesandla, futhi anike amandla opharetha ukwenza ngcono izimo zokusabela, ukunciphisa imfucuza, nokuqinisekisa ukulandelwa kwemithethonqubo yemvelo kanye nokuphepha.
I-Chemistry kanye neNqubo Yokwenziwa kwe-Formaldehyde
Ukwenziwa kwe-formaldehyde kuhilela i-catalytic oxidation ye-methanol, inqubo ehlanjululwe amashumi eminyaka ukuze kuhlangatshezwane nezidingo zezimboni ezifana nokukhiqiza amakhemikhali kanye nemithi. Lokhu kusabela kwe-exothermic kuqhutshwa yisiliva noma i-iron-molybdenum, lapho umhwamuko we-methanol uxutshwe nomoya bese udluliselwa phezu kwe-catalyst ku-reactor.
I-formaldehyde ephumayo imuncwa ibe yisisombululo samanzi, ngokuvamile iqiniswa nge-10–15% methanol ukuvimbela i-polymerization ibe yi-paraformaldehyde. Le nqubo idinga ukulawulwa okunembile kokuhlushwa kwe-methanol esitokweni sokudla kanye nokuhlushwa kwe-formaldehyde ku-reactor kanye nomkhiqizo wokugcina ukuqinisekisa isivuno esikhulu.
Izigaba ezibalulekile zifaka:
Ukulungiselela i-Methanol
Ukuqinisekisa ukuthi i-feedstock ine-concentration ye-methanol yamanzi efanele (ngokuvamile i-50-60 wt%) ukuze kuthuthukiswe ukusebenza kahle kokusabela.
Ukuxutshwa kwe-oksidation
Ukulawula isilinganiso se-methanol-air kanye nezimo ze-reactor ukuze kukhuliswe ukukhiqizwa kwe-formaldehyde futhi kuncishiswe imikhiqizo efana ne-formic acid.
Ukumunca
Ukumunca i-formaldehyde emanzini ukuze kwakheke i-formalin, kudinga ukulinganiswa okunembile kokuhlushwa kwe-formaldehyde ukuze kuvinjelwe ukwenziwa kwe-polymer.
Isitoreji Nokuzinza
Ukwengeza iziqinisi ze-methanol ukuze kulondolozwe ukuhlushwa kwe-formaldehyde nokuvimbela ukuwohloka.
Kungani Ukulawula Ukugxilisa Okuqondile Kubalulekile
Ukugcina isilinganiso esinembile sokuhlushwa kwe-methanol kanye nokulinganisa ukuhlushwa kwe-formaldehyde kubalulekile ngezizathu eziningana. I-methanol eningi kakhulu esitokweni sokudla ingaholela ekungaphelelini kwe-oxidation, inciphise isivuno se-formaldehyde futhi ikhulise imfucuza. Ngokuphambene nalokho, i-methanol enganele ingalambisa ukusabela, yehlise umkhiqizo. Esigabeni sokumunca, ukuhlushwa okuphezulu kwe-formaldehyde (ngaphezu kwama-50 wt%) kubeka engcupheni i-polymerization, kwakha izinto eziqinile ze-paraformaldehyde ezivala imishini futhi ziphazamise ukusebenza.
Izindlela zokuqapha zendabuko, njenge-gas chromatography noma i-titration engaxhunyiwe ku-inthanethi, zidla isikhathi futhi zivame ukuba namaphutha, zibambezela izenzo zokulungisa. Izinzwa zokuhlushwa kwe-Methanol kanye neziqaphi zokuhlushwa kwe-formaldehyde zinikeza idatha eqhubekayo, yesikhathi sangempela, okwenza opharetha bakwazi ukulungisa izilinganiso ze-feedstock, izimo ze-reactor, kanye nokwengezwa kwe-stabilizer ngokushesha, okuqinisekisa ikhwalithi yomkhiqizo ehambisanayo kanye nokusebenza kahle kokusebenza.
I-Lonnmeter Inline Concentration Monitor enconyiwe
Imitha yokuhlushwa kwe-ultrasonic ye-Lonnmeter isebenza ngokulinganisa isikhathi sokudluliselwa kwamagagasi e-ultrasonic kusuka emthonjeni wesignali kuya kumukeli, inquma isivinini somsindo sokubala ubuningi kanye nokuhlushwa. Le ndlela ayithinteki ngamabhamuza, igwebu, noma ukuhanjiswa koketshezi, umbala, noma ukucaca, okuqinisekisa ukuthembeka okuphezulu ezindaweni eziyinselele njengezitshalo zokukhiqiza i-formaldehyde.
Ukungabikho kwezingxenye ezihambayo kuqeda ukuguguleka kwemishini, okuqinisekisa ukusebenza okuqhubekayo ngokuhamba kwesikhathi. Ukwakheka kwemitha okungaphazamisi kunciphisa ukunakekelwa, futhi izinto zayo ezingagqwali zimelana namakhemikhali anolaka, okwenza ifaneleke ezitshalweni zemithi eziphatha izixazululo ze-formaldehyde ne-methanol.
Amasu Okufaka Nokuhlanganisa
Ukuze kukhuliswe ukusebenza kahle kwezihlaziyi zokuhlushwa kwe-formaldehyde, ukufakwa kwamasu kubalulekile. Izinzwa zokuhlushwa kwe-Methanol kufanele zibekwe emigqeni yokudla ukuqinisekisa ikhwalithi yokufaka ehambisanayo, kuyilapho amamitha okuhlushwa kwe-formaldehyde efanelekile ezindaweni zokukhipha i-reactor kanye namakholomu okumunca ukuqapha ukwakheka komkhiqizo kanye nokuzinza. Izinhlelo ezingasebenzi kahle zingafakwa ukuze kugcinwe ukusebenza okuqhubekayo ngesikhathi sokulungiswa, kuncishiswe isikhathi sokungasebenzi.
Ukuhlanganiswa nezinhlelo zokulawula izitshalo kuvumela ukulungiswa okuzenzakalelayo, njengokulawula amazinga okuphakelwa kwe-methanol noma ukwengezwa kokuzinzisa, ngokusekelwe kudatha yesikhathi sangempela. Ukulinganiswa okuvamile ngezixazululo ezijwayelekile kuqinisekisa ukunemba kokulinganisa, ikakhulukazi ezimweni eziguquguqukayo zokwenziwa kwe-formaldehyde.
Izinzuzo zeLonnmeter Inline Concentration Meter
Ukuthuthukisa Ukusebenza Kahle Kokusebenza
Ukwamukelwa kwezinzwa zokuhlushwa kwe-methanol kanye neziqaphi zokuhlushwa kwe-formaldehyde kuthuthukisa kakhulu ukusebenza kahle kwezitshalo zokukhiqiza i-formaldehyde. Ngokuhlinzeka ngedatha yesikhathi sangempela, lawa madivayisi avumela abaqhubi ukuthi babone futhi balungise ukuphambuka kokuhlushwa ngokushesha, kunciphisa ingozi yokuphazamiseka kwenqubo. Isibonelo, ukugcina ukuhlushwa kwe-methanol emanzini okuhle kakhulu esitokweni sokudla kuvimbela ukubola okungaphelele, kukhulisa isivuno futhi kunciphise imfucuza. Ngokufanayo, ukulinganisa okunembile kokuhlushwa kwe-formaldehyde esigabeni sokumunca kuvimbela ukwenziwa kwe-polymerization, kunciphisa ukungcola kwemishini kanye nezindleko zokulungisa.
Ezitshalweni ze-petrochemical, la mathuluzi athuthukisa ukusetshenziswa kwe-methanol, anciphisa izindleko ze-feedstock, kuyilapho ezitshalweni zemithi, aqinisekisa ikhwalithi ephakathi ehambisanayo, anciphisa ukusebenza kabusha. Izilinganiso zemboni zisikisela ukuthi ukuqapha okuqondile kunganciphisa ukusetshenziswa kwamandla ngamaphesenti afinyelela ku-10 futhi konge isikhathi esiningi somsebenzi ngokuzenzakalelayo izinqubo zokuhlaziya.
Ukuqinisekisa Ikhwalithi Yomkhiqizo Nokuhambisana Nemithetho
Imikhiqizo esekelwe kwi-formaldehyde, njenge-urea-formaldehyde resins kanye ne-pharmaceutical intermediates, kumele ihlangabezane nezindinganiso eziqinile zekhwalithi kanye nokuphepha. Abahlaziyi be-formaldehyde concentration baqinisekisa ukuthi umkhiqizo wokugcina (isb., i-formalin) ugcina ukuhlushwa okulungile (37-50 wt%) kanye nokuqukethwe kwe-stabilizer, okuvimbela ukuwohloka nokuqinisekisa ukusebenza kahle ekusetshenzisweni okufana nokunamathelayo kanye nokwembozwa.
Imithethonqubo yezemvelo, eqhutshwa ubuthi be-formaldehyde, idinga ukulawulwa okuqinile kokukhishwa kwegesi. Amamitha angaphakathi asiza izitshalo ukuqapha nokunciphisa ukukhishwa kwegesi kwe-formaldehyde, ukunciphisa ingozi yezinhlawulo nokuthuthukisa ukusimama. Lokhu kubaluleke kakhulu ezitshalweni ze-petrochemical, lapho ukukhiqizwa okukhulu kwandisa khona imiphumela yemvelo.
Ukonga Izindleko kanye Nenani Lesikhathi Eside
Izinzuzo zezimali zamamitha okuhlushwa kwe-formaldehyde zinkulu kakhulu. Ngokuqapha okuzenzakalelayo, la madivayisi anciphisa izindleko zomsebenzi ezihambisana nokusampula ngesandla, okungase konge amahora nsuku zonke emisebenzini emikhulu. Aphinde anciphise imfucuza ngokuvimbela ukumuncwa ngokweqile noma okungaphansi kwe-methanol kanye neziqinisi, okwenza ngcono ukusetshenziswa kwe-feedstock. Ukonga amandla kufezwa ngokugcina izimo zokusabela ezifanele, kunciphisa isidingo sokushisa noma ukupholisa ngokweqile kuma-reactor kanye nama-absorption units.
Ukuqina kwala mamitha, akhiwe ngezinto ezingagqwali, kuqinisekisa ukuthembeka kwesikhathi eside ezimweni ezinzima zokwenziwa kwe-formaldehyde. Izidingo zawo zokunakekelwa okuphansi kanye nokuhlanganiswa nezinhlelo zokulawula kuzenza zibe utshalomali olungabizi kakhulu lwezitshalo zokukhiqiza amakhemikhali kanye nezitshalo ze-petrochemical ezifuna ukuthuthukisa inzuzo.
Ukukhetha inzwa yokuhlushwa kwe-methanol efanele noma i-formaldehyde concentration analyzer kudinga ukucatshangelwa ngokucophelela izici ezifana nokunemba, izinga lokushisa, indlela yokufaka, izinto zokwakha, njll.
Imibuzo Evame Ukubuzwa
Izinzwa Zokuhlushwa ze-Methanol Zithuthukisa Kanjani Ukwenziwa Kwe-Formaldehyde?
Izinzwa zokuhlushwa kwe-Methanol zihlinzeka ngokuqapha ngesikhathi sangempela kwekhwalithi yesitokwe sokudla, ziqinisekisa ukulinganiswa okuhle kokuhlushwa kwe-methanol ukuze kube ne-catalytic oxidation ephumelelayo. Lokhu kuvimbela ukusabela okungaphelele futhi kwandisa isivuno ezitshalweni zokukhiqiza i-formaldehyde, kuthuthukisa ukuhambisana komkhiqizo.
Yiziphi Izinzuzo Ze-Formaldehyde Concentration Analyzers?
Abahlaziyi bokuhlushwa kwe-formaldehyde baqinisekisa imiphumela yokulinganisa enembile yokuhlushwa kwe-formaldehyde, bavimbela ukwenziwa kwe-polymerization futhi baqinisekise ukuhambisana nemikhawulo yemithetho. Banciphisa imfucuza futhi bathuthukise ukusebenza kahle kwezitshalo zokukhiqiza amakhemikhali nezitshalo zemithi.
Ingabe Amamitha Okuhlushwa Angaphakathi Angamelana Nezimo Zokwenziwa Kwe-Formaldehyde?
Iziqaphi zanamuhla zokuhlushwa kwe-formaldehyde zenzelwe ukusebenza ngokuthembekile ngaphansi kwamazinga okushisa aphezulu kanye nezimo zokugqwala zokwenziwa kwe-formaldehyde. Zakhiwe ngezinto eziqinile, ziqinisekisa ukusebenza kwesikhathi eside kanye nokuqapha okunembile.
Izinzwa zokuhlushwa kwe-Methanol, i-formaldehydeamamitha okuhlushwa, abaqaphi, kanye nabahlaziyi kubalulekile ekulawuleni ukugcwala okuqondile ekuhlanganisweni kwe-formaldehyde, okuvumela izitshalo zokukhiqiza i-formaldehyde, izitshalo zokukhiqiza amakhemikhali, izitshalo ze-petrochemical, kanye nezitshalo zemithi ukuthi zifinyelele ukusebenza kahle. Ngokunikeza idatha yesikhathi sangempela nenembile, la mathuluzi athuthukisa izimo zokusabela, anciphise imfucuza, futhi aqinisekise ukuhambisana nezindinganiso zokuphepha eziqinile kanye nezemvelo. Ukulungele ukuthuthukisa inqubo yakho yokukhiqiza i-formaldehyde? Xhumana ne-lonnmeter ukuze uhlole amamitha okugcwala athuthukisiwe afanela izidingo zakho, avule ukusebenza kahle kanye nekhwalithi emisebenzini yakho.
Isikhathi sokuthunyelwe: Juni-27-2025
