1. Cov txheej txheem yooj yim ntawm cov nroj tsuag sulfuric acid

Ua ntej sib piv ob lub thev naus laus zis, nws yuav tsum nkag siab txog cov txheej txheem tshuaj tiv thaiv yooj yim. Cov txheej txheem tsim sulfuric acid suav nrog peb theem tshuaj lom neeg tseem ceeb:

2. Dab tsi yog ib qho kev nqus ntawm sulfuric acid cog?

Ib qho nqussulfuric acid cogsiv ib theem nqus tom qab cov txheej txheem hloov pauv catalytic.

Txheej txheem txheej txheem: Sulfur rauv → Gas Cleaning → Converter → Ib qho nqus ntauwd → Tail Gas Discharge

Tom qab SO₂ hloov dua siab tshiab rau hauv SO₃ nyob rau hauv lub converter, cov roj nkag mus rau hauv lub absorption ntauwd. Lub SO₃ yog absorbed rau hauv sulfuric acid, thaum cov roj seem yog tawm tom qab kev kho mob.

Hauv qhov system no, lub converter feem ntau muaj ob peb lub txaj catalyst. Qhov kev ua tau zoo ntawm cov tshuaj tiv thaiv yog nyob ntawm kev ua haujlwm catalyst, tswj qhov kub thiab txias, muaj cov pa oxygen, thiab lub sijhawm nyob hauv roj. Cov txheej txheem nqus dej ib leeg muaj cov cuab yeej siv yooj yim dua vim nws tsis tas yuav muaj qhov nruab nrab nqus ntauwd lossis cov pa roj ntxiv.

Lub ntsiab nta ntawm cov nroj tsuag nqus ib leeg

1. Cov qauv txheej txheem yooj yim

Ib tsob nroj nqus ib qho yuav tsum muaj tsawg dua cov txheej txheem tseem ceeb piv nrog ob txoj kev nqus dej. Cov khoom siv tseem ceeb suav nrog:

• Sulfur burner
• Khib kub boiler
• Cov khoom siv roj purification
• Hloov
• Absorption ntauwd
• Acid circulation system
• Kub exchangers

Cov txheej txheem txo qis tuaj yeem txo qhov kev tsim kho thawj zaug.

2. Haum rau qee yam kev tsim khoom

Ib qho kev nqus cov nroj tsuag feem ntau yog xaiv rau sulfuric acid ntau lawm cov haujlwm uas yuav tsum muaj emission thiab cov nroj tsuag muaj peev xwm tso cai rau qhov kev teeb tsa no. Cov txheej txheem tuaj yeem siv rau cov nroj tsuag sulfur hlawv, metallurgical off-pas kho tshuab, thiab cov chaw tsim tshuaj lom neeg nrog tswj SO₂ concentration.

3. Kev nqis peev qis dua

Vim hais tias lub kaw lus muaj tsawg dua qhov nqus thiab cov khoom siv hluav taws xob sib txuas, cov cuab yeej pib teeb tsa tau zoo sib xws. Txawm li cas los xij, qhov kev xaiv zaum kawg yog nyob ntawm qhov muaj peev xwm tsim khoom, kev tswj hwm ib puag ncig hauv zos, thiab xav tau SO₂ emission theem.

3. Dab tsi yog Ob Chav Absorption Sulfuric Acid Plant?

Ob chav nqus sulfuric acid cog ntxiv ib qho kev nqus nruab nrab ntawm cov txaj catalyst thiab ua tiav theem thib ob hloov dua siab tshiab tom qab.

Cov txheej txheem no tseem hu ua Double Contact Double Absorption (DCDA) txheej txheem. Lub hauv paus ntsiab lus tseem ceeb yog tshem tawm cov khoom tsim tawm SO₃ tom qab hloov dua siab tshiab ib nrab, tso cai rau SO₂ ntxiv mus txuas ntxiv cov pa oxygen hauv cov txaj tom qab catalyst.

Cov txheej txheem tshuaj tiv thaiv raws li nram no:

2SO2 + O2 → 2SO3

Tom qab thawj theem hloov dua siab tshiab, cov roj nkag mus rau hauv nruab nrab nqus ntauwd. Tshem tawm SO₃ hloov qhov sib npaug ntawm cov tshuaj tiv thaiv mus rau kev hloov pauv SO₂ ntxiv thaum lub sijhawm thib ob catalytic.

4. Qhov sib txawv tseem ceeb ntawm tib lub nqus nqus thiab ob chav nqus cov nroj tsuag

4.1 Conversion Efficiency Txawv

Qhov kev sib txawv loj tshaj plaws yog qhov kawg SO₂ hloov pauv tus nqi. Ib tsob nroj nqus ib zaug ua tiav kev hloov pauv thiab nqus hauv ib lub voj voog. Qee qhov tsis hloov pauv SO₂ tseem nyob hauv cov pa tawm hauv seem nqus. Ob chav nqus cov nroj tsuag tshem tawm SO₃ ntawm theem hloov dua siab tshiab, tso cai rau cov tshuaj tiv thaiv sib npaug txav mus rau SO₃ tsim dua. Qhov no nce tus nqi hloov dua siab tshiab.

Qhov kev hloov pauv siab dua ntawm ob lub tshuab nqus dej yuav txo cov sulfur dioxide tawm.

4.2 Ib puag ncig kev ua tau zoo sib txawv

SO₂ emissions ncaj qha cuam tshuam rau qhov seem uas tsis tau hloov pauv sulfur dioxide nyob rau hauv qhov hluav taws xob roj. Nyob rau hauv ib qho kev nqus cov nroj tsuag, qhov seem SO₂ concentration nyob ntawm tus qauv tsim, catalyst mob, kev khiav hauj lwm kub, thiab roj muaj pes tsawg leeg.

Ob chav nqus cov nroj tsuag ua tiav qis dua SO₂ emissions vim tias qhov seem SO₂ raug xa rov qab rau hauv cov txheej txheem hloov dua siab tshiab ua ntej tso tawm zaum kawg. Rau cov cheeb tsam uas muaj cov kev cai emission nruj, ob chav nqus tshuab feem ntau xaiv vim nws muab kev hloov dua siab tshiab ntxiv.

4.3 Cov Khoom Siv Teeb Meem Sib txawv

Kev npaj cov cuab yeej sib txawv ntawm ob lub thev naus laus zis.

Txoj kev nqus ob zaug yuav tsum tau tswj cov ntsiab lus ntau dua vim tias cov neeg ua haujlwm yuav tsum tswj hwm cov roj ntws ntxiv thiab cov kua qaub ncig.

4.4 Thaum tshav kub kub rov sib txawv

Sulfuric acid ntau lawm tso tawm cov tshuaj tiv thaiv kub heev. Cov tshuaj sulfur combustion ua rau siab - cov pa kub, uas tuaj yeem rov qab los ntawm cov khib nyiab kub boiler los tsim cov pa. Lub catalytic conversion theem kuj tso tawm cua sov:

2SO2 + O2 → 2SO3 + Kub

Ob leeg ib leeg thiab ob chav nqus cov nroj tsuag tuaj yeem sib xyaw ua ke cov cua sov rov qab. Txawm li cas los xij, ob chav nqus cov nroj tsuag feem ntau suav nrog kev hloov pauv hluav taws xob ntxiv vim qhov nqus ntxiv thiab hloov pauv theem.

Cov cuab yeej siv hluav taws xob zoo xws li:

• Khib kub boiler
• Gas -gas tshav kub exchanger
• Economizer
• Superheater
• Acid tshav kub exchanger

Asia Chemical Engineering Co., Ltd tsim cov txheej txheem txheej txheem raws li cov txheej txheem tsim hluav taws xob, lub hom phiaj siv hluav taws xob, thiab cog kev ua haujlwm.

5. Kev sib piv ntawm daim ntawv thov scenarios

6. Yuav Ua Li Cas Xaiv Ib Leeg Absorption thiab Ob Chav Absorption Technology?

Kev xaiv yuav tsum xav txog ntau yam kev qhia.

Raw Material Source

Ntau qhov chaw sulfur tsim cov roj sib txawv. Piv txwv li:

• Elemental sulfur
• Sulfide ore
• Metallurgical tawm -gas
• Hydrogen sulfide- muaj roj

Gas muaj pes tsawg leeg cuam tshuam rau converter tsim thiab haum cov cai.

Muaj Peev Xwm Ntau Lawm

Loj -scale sulfuric acid nroj tsuag feem ntau xav tau kev hloov dua siab tshiab thiab muaj zog emission tswj systems. Rau siab - tej yaam num muaj peev xwm, muab ob npaug rau nqus tshuab yog feem ntau txiav txim siab vim hais tias nws txhawb siab dua sulfur.

Environmental Regulations

Cov kev txwv emissions hauv zos txiav txim siab seb puas muaj ib qho kev nqus dej tuaj yeem ua tau raws li qhov yuav tsum tau ua. Yog tias qhov tso cai SO₂ emission concentration yog nruj, yuav tsum tau hloov dua siab tshiab thiab nqus theem ntxiv.

Kev xav kom rov qab muaj zog

Cov nroj tsuag sulfuric acid ua kom muaj zog thermal zog. Tus tsim yuav muaj xws li:

• Chav tsev ntau lawm
• Kev tsim hluav taws xob sib xyaw
• Thaum tshav kub kub rov qab tes hauj lwm

Kev xaiv cov txheej txheem teeb tsa yuav tsum ua kom haum rau tag nrho cov phiaj xwm tswj hluav taws xob.

7. Asia Chemical Engineering Co., Ltd Sulfuric Acid Plant Solutions

Asia Chemical Engineering Co., Ltd muab kev daws teeb meem engineering rau sulfuric acid ntau lawm cov nroj tsuag, suav nrog cov txheej txheem tsim, kev teeb tsa cov cuab yeej, kev sib koom ua ke, thiab kev txhawb nqa. Lub tuam txhab ntsuas qhov project xav tau raws li:

• Cov yam ntxwv ntawm raw khoom
• Muaj peev xwm ntau lawm
• SO₂ hloov dua siab tshiab lub hom phiaj
• Chav rov qab xav tau
• Environmental qauv
• Cog kev khiav hauj lwm tej yam kev mob

Rau cov nroj tsuag sulfuric acid uas xav tau kev hloov pauv ntau dua thiab qis dua SO₂ emissions, ob chav nqus tshuab tuaj yeem muab txoj hauv kev zoo. Rau tej yaam num uas muaj peev xwm thiab emission tej yam kev mob, ib tug nqus system kuj yuav configured raws li cov kev cai.

Kev xaiv ntawm ib qho nqus thiab ob chav nqus tsis yog qhov sib txawv ntawm cov khoom siv ntau xwb tab sis kuj yog qhov kev txiav txim siab ntsig txog kev hloov dua siab tshiab, kev tswj ib puag ncig, kev ua haujlwm zoo, thiab ntev - lub hom phiaj tsim khoom.

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