Uhlalutyo lwakutshanje lwemarike kunye nophuhliso lweshishini lubonisa ingqwalasela ekhulayo kwi-sulfolane, isinyibilikisi se-polar aprotic esisebenza kakuhle, njengoko amacandelo aqala kwiikhemikhali zepetroli ukuya kumayeza efuna izinto ezisebenzayo nezihambelana nokusingqongileyo. Ngomdibaniso wayo owahlukileyo wozinzo lobushushu, ukunyibilika okuphezulu, kunye nobuthi obuphantsi, i-sulfolane ivela njengesixhobo esibalulekileyo esivumela iinkqubo ezibeka phambili zombini iinjongo zokusebenza kakuhle kunye nokuzinza.

Icandelo lePetrochemical likhokela ukwamkelwa kokusetyenziswa kwegesi yendalo

Ishishini le-petrochemical lihlala liyinkampani enkulu yabathengi be-sulfolane, ikakhulu lisebenzisa amandla alo amakhulu okwahlula iikhompawundi ze-sulfur kwigesi yendalo kunye nemijelo yokucoca. Njengoko imithetho yehlabathi jikelele malunga nokukhutshwa kwe-sulfur—ejolise ekunciphiseni ungcoliseko lomoya kunye nokunciphisa impembelelo yemozulu—isiya iqina ngakumbi, abaqhubi bajika baye kwiinkqubo zokukhupha ezisekelwe kwi-sulfolane ukuze bahlangabezane nemida engqongqo yomthamo we-sulfur kumafutha kunye negesi yendalo.

Ngokungafaniyo nezinyibilikisi zemveli, i-sulfolane igcina ukusebenza okuzinzileyo kumaqondo obushushu aphezulu (ukuya kuthi ga kwi-285°C) kwaye iyamelana nokuwohloka, inciphisa isidingo sokutshintshwa kwesinyibilikisi rhoqo kwaye inciphisa iindleko zokusebenza zizonke. Iingxelo zoshishino ziphawula ukuba iifektri zokucoca kunye nezityalo zokucubungula igesi yendalo kwimimandla enemigangatho eqinileyo yokukhupha umbane ziye zakhawulezisa utyalo-mali kwiiyunithi zokukhupha i-sulfolane eziqhutywa yi-sulfolane kwiinyanga ezili-12 ezidlulileyo, umkhwa okulindeleke ukuba uqhubeke ukuya kuthi ga kwi-2026.

Amashishini eMichiza kunye neeKhemikhali eziLungileyo andisa ukusetyenziswa

Ngaphandle kweekhemikhali zepetrochemicals, amacandelo eyeza kunye neekhemikhali ezintle ayandisa ukusetyenziswa kwawo kwe-sulfolane njengendlela yokusabela kunye nesinyibilikisi sokukhupha. Amandla ayo okunyibilikisa zombini iikhompawundi ze-polar kunye nezingezizo ze-polar enza ukuba ilungele ukwenziwa kwezithako ezisebenzayo zamayeza (ii-API) kunye neekhemikhali ezikhethekileyo, apho ukuchaneka kunye nobunyulu kubalulekile.

Uphuhliso lwakutshanje lobuchwephesha lukwajongane neenkxalabo zembali malunga nokubuyiswa kwesinyibilikisi, kunye netekhnoloji entsha yokuhluza kunye nokucoca evumela ukuba i-sulfolane iphinde isetyenziswe ngamanani angaphezulu kwe-95% kwimveliso yamayeza. Oku akunciphisi nje kuphela inkunkuma kodwa kuhambelana nokukhuthaza kweshishini leendlela zoqoqosho olujikelezayo, nto leyo eqhubela phambili ukwamkelwa.

Gxila kwiMveliso eZinzileyo kunye nokujikelezisa izinto

Njengoko imfuno isanda, ingqalelo iyatshintsha iye kwimveliso ezinzileyo ye-sulfolane ngokwayo. Abavelisi bahlola ukutya okusekelwe kwi-bio kunye neendlela zokwenziwa ezisebenzisa amandla kakuhle ukunciphisa umngcipheko wekhabhoni kwimveliso ye-sulfolane, kunye neeprojekthi zokuqala zovavanyo ezibonisa ukwehla okunokwenzeka kwe-20% kwi-greenhouse gas xa kuthelekiswa neendlela zemveli.

Ukongeza, intsebenziswano kushishino iyaqhubeka ukuphuhlisa izikhokelo ezisemgangathweni zokuphinda kusetyenziswe i-sulfolane kumacandelo onke, ngenjongo yokudala indlela edibeneyo yokunciphisa inkunkuma ye-solvent. Le mizamo ixhaswa zimibutho ezilawulayo eziqonda impembelelo ephantsi ye-sulfolane kwindalo xa ilawulwa ngokufanelekileyo, ziyibeka njengendlela ekhethwayo endaweni ye-solvents ezinobungozi ngakumbi.

Imbonakalo: Ukukhula Okuzinzileyo Okuqhutywa Yimithetho Nobuchule

Izibikezelo zemarike zibonisa ukuba imfuno yehlabathi ye-sulfolane iya kukhula ngesantya esidibeneyo sonyaka se-4.5% kwiminyaka emihlanu ezayo, ikhuthazwa yimithetho eqhubekayo yokukhupha ukungcola, ukuqhubela phambili kwimveliso yamayeza, kunye nokwandiswa kweziseko zophuhliso lwegesi yendalo. Iingcali zigxininisa ukuba ukuguquguquka kwe-sulfolane—kunye nokuhambelana kwayo neendlela ezizinzileyo—kuya kuyigcina iphambili kwiindlela zokukhetha izinyibilikisi zoshishino kwiminyaka ezayo.

“Njengoko amashishini ejongene nemingeni emibini yokuphucula ukusebenza kakuhle nokunciphisa impembelelo yokusingqongileyo, izinyibilikisi ezifana ne-sulfolane azisezona zixhobo zokusebenza nje kuphela—zizinto ezibalulekileyo,” utshilo isithethi sombutho ophambili kushishino. “Utshintsho oluqhubekayo kwindlela esivelisa, esisebenzisa, kwaye siphinde sisebenzise ngayo i-sulfolane luya kuqinisa indima yalo ekwakheni iinkqubo zoshishino ezizinzileyo ngakumbi.”