Takamunan Gwaji na Flue Gas Desulfurization da Denitrification don Makerafi na Power Plant

Ga mashekan da ke tsaka ciki na alko, akwai teknologiya manyin dabbobi na gas flare (FGD) da dentitrification (DeNOx) akwai teknologiya. Kowane hanyana yiwuwa ta tsari na kimiya, aikin sa, girman investima, tsarin aiki, da amfani da kayan aikin. Zazzage daya daga cikin su ne kyauta wajen samun rashin gudunma mai zurfi har ma an jera iyakokin aikin.

Kusan duk shafin teknologiyoyin da ake amfani da su a yankin kasuwanci, tare da amfani mai kurkurun kasuwanci.

Teknologiyoyin Kashin Gudunma

1. Tsarin Limestone–Gypsum Wet Desulfurization (WFGD)

Tsarin limestone–gypsum shine a wasan da aka amfani da shi ne a yanzu a duniya mai amfani da teknolojin wet FGD. An kaci limestone mai zurfi sannan an rage shi da ruwa don samar da slurry, wanda aka sprai shi cikin aborjer tower. SO₂ a cikin gas na flue ya yi rashin kwamfuta da slurry don samar da calcium sulfite, wanda a gaba sannan za a iya oxidize shi don samar da kyarsan gypsum.

Sadda'a Ruwan:

Tsarin desulfurization mai tsauri 95%

Matsala, na amintam, sai kuma mafi mahukunci ga yankuna mai girma

Za a iya amfani da by-product na gypsum sabinsa a cikin kayan aikin gona

Yiwa mai girma, tare da biyan kima mai zurfi da OPEX mai zurfi dibu da wadannan waɗanda ke yankin zahiri

Misalin alama ce desulfurization da denitrification project da aka kammala ta MirShine Yamadda ga mashekin Shaanxi Coal Group’s Chang’an–Yiyang Power Plant. Tare da kowane abokin yin amfani na 3.86 GW, shine mashekin mai yawa mai amfani da kura a sararin Hunan.

2. Tsarin Ammonia-Based Desulfurization

Hanyar ammonia ta yau da abuɓin kwaya a matsayin abubuwan da suka shigo. SO₂ ya yi rashin taka ammauna zuwa zuwa zuwa sulfite da ammonium bisulfite, wanda aka yi masa gudumarwa kuma an samu dadin itace na ammonium sulfate .

Fa'idodi:

Daban naman sufur tsarin aiki yana fitowa 95–99%

Zuwace mai kyau na rashin taka

Abubuwan da aka samu ammonium sulfate yana da kyaututten iko

Wani baya mai tsoro da abubuwan da aka sauya

Alaƙa:

Takaitaccen inganci ga karbarin karbari

Kariyar ayyukan yana takawa sosai

Yana buƙatar sadarwa mai zurfi na ammonia da alhaji kan dakin itace

MirShine Environmental ya kafa tsarin FGD mai ambin ammonia wanda ya daki, , yayinda ya kuma kama da matsalolin da ke ciki kamar yadda aka fi saba ta hanyar ambin aerosol da ambin ammonia. Wannan teknoloji tare da tsarin gzugzuwa da kwantar alashin dumi yayin da ke kara zarin shiga na hasura. An amfani da ita a cikin wasu sarari, tunda ta ba da amfanin albishin da kuma iko.

Teknologin Gwagwarmayar Nitrogen

1. Tsarin Gwagwarmayar Selective Catalytic (SCR)

SCR ita ce babban daidaiton da mai kyau don gwagwarmayar DeNOx ga injin kasuwanci. Ana sauka ammonia zuwa gasi na taga a cikin 280–420°C tare da catalyst, wanda ya canza NOₓ zuwa nitrogen da ruwa.

Ranarai:

Daidaiton gwagwarmayar NOₓ na 80–90%

Tunawa mai kyau a wasan kasuwa mai yawa

Aiki mai dutsen tsakiyar shekara

Considerations:

Kusurin katalisiti ya taka

Ya kamata a dawo da kaiwa da kaiwa a cikin katalisiti

Yiƙaƙin gwagwarmayar wuri sun yi yawa

SCR zai zama zaune mai amfani ga aluwalwaɗɗan keke so su samun hadarin NOₓ mai ƙarfi.

2. Rawa mai Tsarin Katalisiti (SNCR)

SNCR yana nuna ammonia ko urea har ma tsakanin tsarin 850–1100°C na boiler. Materiajin nuni ya baruta zuwa sauran NH₃, wanda ya rirya da NOₓ.

Fa'idodi:

Tsarin sako da kusurin sauke mai ƙarfi

Babu bukatar katalisiti

Tatsuniya:

Ƙauye mai karɓar rashin aiki (" 30–60%)

Fuskar girma na tsawon darja

Zafin ammonia mai yawa

Mai kyauyu ga maɓallan sana'ar ko kasa da shagalar darajar gudummawa

3. Tsarin SNCR + SCR Na Tsokace

A cikin wannan tattalin arziki, SNCR yake cire kwantar NOₓ a cikin furnace. Ana amsawa sauran NOₓ a reactorin SCR na gaban. Kwantan ammonia daga SNCR zai iya amfani da unitin SCR.

Bayan Na'awa:

Tsauraran DeNOx mai zurfi

Rakwar catalyst mai karauci da investar SCC mai kama

Mai kyauyu ga wasan sana'a da ke so in damuwa da standardin NOₓ ta hanyar mu'amalatin da aka gwada

Takammon Sana'a: MirShine Environmental's Advanced Ammonia-Based FGD

MirShine Environmental ya gujowa teknologin desulfurization na ammonia ta hanyar sabon shekara. Dukia’i masu mahimmanci sun hada da:

Ƙarshen ammoniya

Cikakken kawar da samuwar aerosol

Ƙaddamar da ƙarancin sulfur da kuma kawar da ƙura

Samun haɗin gwiwa na ammonium sulfate takin mai magani mai haɗari

Wannan bayani ba kawai yana ba da damar ƙananan ƙwayoyin cuta ba amma kuma yana samar da ƙarin kudaden shiga ga masu sarrafawa. Kamfanoni da yawa da suka yi amfani da wannan fasaha sun samu ci gaba a wajen kiyaye muhalli da kuma samun riba a tattalin arziki.

Kammalawa

Wurin samar da wutar lantarki a yau yana da nau'ikan fasahar FGD da DeNOx da za a zaɓa daga, kowannensu yana ba da ƙarfin ƙarfin daban dangane da girman naúrar, ingancin kwal, buƙatun fitarwa, da ƙuntatawa na farashi. FGD mai laushi mai laushigypsum ya kasance hanyar da ta fi dacewa da sulfurization, yayin da fasaha na ammoniya ke samun karuwa saboda ingancinsa da kuma samfurori masu daraja. A gefen denitrification, SCR ya ci gaba da zama mizani don aikace-aikace masu ƙarfi.

Tare da ci gaba da kirkire-kirkirekamar FGD mai amfani da ammoniya wanda Shandong Mingsheng Environmental ya haɓaka, cibiyoyin samar da wutar lantarki na iya cimma ƙananan ƙarancin iska yayin haɓaka aikin tattalin arziki na dogon lokaci.