Ụlọ ọrụ Coking VOCs Ngwọta Ọgwụgwọ zuru oke
Ngwakọta organic na-adịghị agbanwe agbanwe (VOCs) bụ ihe mmalite dị mkpa nke ọgbọ O3, na ụfọdụ n'ime ihe mejupụtara ya nwere carcinogenicity siri ike. N'ime afọ ndị na-adịbeghị anya, ntinye uche nke O3 na ikuku ikuku zuru ụwa ọnụ egosila ọganihu na-arịwanye elu kwa afọ, na nsogbu nke mmetọ O3 aghọwo ihe a ma ama, nke nwere njikọ chiri anya na ọnụ ọgụgụ buru ibu nke VOC. N'ọtụtụ ebe mmetọ VOC, mmepụta coking bụ otu n'ime isi mmalite mmetọ dị mkpa. N'ime usoro mmepụta nke coking, nsogbu ikuku gas na-ekpochapụ VOC bụ nke a ma ama, yana ọtụtụ ihe na-emepụta ihe, ọtụtụ ihe ndị na-emetọ ihe na oke nsi, ikuku na-adịghị ahazi na njirimara ndị ọzọ, mmetọ dị egwu na gburugburu ikuku. N'ihi ọgwụgwọ nke coking VOCs n'efu gas, mkpa ụlọ ọrụ agbalịwo na inyocha, ndị ọzọ nkịtị bụ "atọ ogbo ịsacha + absorption (wepụ) mmasị" usoro, atọ ogbo ịsacha + RTO usoro, nitrogen akara + ọjọọ mgbake usoro, n'efu gas laghachi combustion na ndị ọzọ ọgwụgwọ usoro. Na ntọhapụ nke "Volatile organic ogige Emission Control Standards for Industrial Enterprises", "Coking Chemical Industry Pollutant Emission Standards" na ndị ọzọ atumatu, coking VOCs management bụ nnọọ ngwa ngwa, dị ka e ji mara VOCs iyuzucha gas na usoro dị iche iche na-ebu na-omimi ọgwụgwọ, iji nweta adigide na kwụsiri ike ụkpụrụ bụ nsogbu ngwa ngwa maka ụlọ ọrụ.
Nyocha nke isi mmalite nke VOC na ụlọ ọrụ coking
VOCs na ụlọ ọrụ coking na-esite na usoro mgbake kemịkalụ: isi iyi mmetọ nke ngalaba oyi oyi bụ ọkpọkọ nke tar, amonia na tankị nchekwa ndị ọzọ, ọkachasị na-emepụta benzo [a] pyrene, hydrogen cyanide, phenols, naphthol, na-abụghị methane ngụkọta hydrocarbon, ammonia, hydrogen sulffuride, wdg bụ isi mmalite nke resulsulization. na ọkpọkọ mgbapụta nke tankị nchekwa ọ bụla, bụ nke kachasị amonia na hydrogen sulfide. Isi mmetọ isi iyi nke ammonium sulfide ngalaba bụ ammonium sulfide ihicha ụlọ ọrụ, ammonium sulfide ngwọta, amonia nchekwa tankị, wdg, tumadi na-amị particulate okwu, amonia, wdg The isi mmetọ isi iyi nke benzene saa ngalaba bụ crude benzene rectification unit, ihapu ọkpọkọ nke ọ bụla mmanụ tank separator benzene, nhazi benzene, isi na-emepụta particulate okwu, amonia, wdg. na usoro benzene, hydrocarbons, wdg. VOC ndị a nwekwara àgwà ndị na-egbu egbu na ndị na-emerụ ahụ, ọkụ na ihe mgbawa. N'ihi usoro ogologo na mgbagwoju anya nke ụlọ ọrụ coking, ihe ndị VOC dị iche iche ma sie ike ịnakọta na jikwaa. Ọtụtụ mgbe, tankị nchekwa nke nwere ezigbo ikuku na ikuku oxygen dị ala na-anabata usoro nguzozi mgbake na-adịghị mma;
N'ihi nnukwu ikuku oxygen ya, gas na-agbasasị enweghị ike ịbanye na usoro mgbake gas, ya mere, a na-agwọ ya nke ukwuu site na usoro nchịkọta na-ekpo ọkụ na nloghachi nke etiti na-ekpo ọkụ ọkụ ọkụ coke ma ọ bụ ihe ọkụ ọkụ ndị ọzọ. Mfefe dị anya nke VOCs gas gas nwere nsogbu dị ka obere nrụgide na naphthol na gas na-ekpofu ihe dị mfe crystallize na igbochi pipeline. N'oge a, ọ dị mma iji wuo ihe nsure ọkụ dị iche.
Xinjieyuan Technology VOCs ọgwụgwọ zuru oke ngwọtaN'ime usoro coking dum, mgbake mmepụta kemịkalụ bụ ogbako na-arụpụta VOC kachasị, ọkachasị na mpaghara mgbake dị njọ karị, yabụ njikwa VOC nke osisi coking na-elekwasị anya na mpaghara mgbake. Enwere ọtụtụ akụrụngwa na-etinye aka na mpaghara mgbake, na ikuku gas nke tankị dị iche iche jikọtara ya na ikuku, na-akpata isi ísì. Amonia, tar, naphthalene, phenol, cyanide, methane hydrocarbons na ihe ndị ọzọ ga-agbanarị n'ime ikuku, karịsịa benzene, hydrogen sulfide na ihe ndị ọzọ, ma nwekwara ike toxicity, mmetọ nke gburugburu ebe obibi, na-emetụta nke ukwuu na gburugburu ebe obibi na ahụike nke ndị ọrụ gbara ya gburugburu. Xinjieyuan VOCs keukwu ọgwụgwọ ngwọta, dị ka coking Enterprise coking, gas ọcha na chemical mmepụta mgbake, ngwaahịa nchekwa, phenol cyanide mkpofu mmiri ọgwụgwọ nke dị iche iche Filiks nke VOCs àgwà na ikwapu saịtị dị iche iche, The VOCs ọgwụgwọ usoro atara site kemịkalụ mmepụta usoro na-ekewa n'ime zuru ọjọọ mgbali mgbake itule, iyuzucha gas laghachi combustion, RTO rotary okpomọkụ ngwa izute dị iche iche nke usoro nke VOCs àgwà na ntọhapụ saịtị dị iche iche. ọnọdụ nke VOCs ngwọta ọgwụgwọ miri emi.
Usoro mgbake na-adịghị mma zuru oke (obere ikuku ikuku oxygen dị ala)A na-edozi gas a na-anakọta na ikuku ikuku dị mma, obere ikuku oxygen na uru dị elu, dị ka akụkụ nke oyi oyi, akụkụ benzene eluting na ebe nchekwa mmanụ, a na-agwọ ya site na ụlọ elu mmanụ na mpaghara ọ bụla, wee mechie ya site na nitrogen ma laghachi na usoro gas n'okpuru nrụgide na-adịghị mma. Usoro a na-achọ mmetụta dị mma nke mkpuchi nke tank, nke mere na ikuku adịghị mfe ịbanye na mpaghara nrụgide na-adịghị mma, nwere ike ịchịkwa ọdịnaya oxygen nke gas.
Ụkpụrụ na-arụ ọrụ: Nke mbụ, a na-etinye ihe mkpuchi nitrogen na-emeghe na nke mechiri emechi na tank mechiri emechi. Mgbe tank na-abanye ma na-apụ apụ, a na-eji valvụ mkpuchi nitrogen eme ihe maka ntinye nitrogen na ntinye nitrogen, na akụkụ nke ọdụ gas na-ahapụ ya na gas nitrogen. Jikọọ valvụ ntọhapụ nke mechiri emechi na sistemu nrụgide na-adịghị mma, wụnye setịpụ nke micro-adịghị mma nrụgide ikuku oxygen na-achịkwa ngwaọrụ n'ihu onye ofufe ahụ, setịpụ ụfọdụ nrụgide, dị nnọọ nupụta ikuku iyuzucha nke tankị ndị a n'ime usoro nrụgide na-adịghị mma, mana ọ bụghị oke ikuku oxygen n'ime sistemu nrụgide na-adịghị mma mgbe nrụgide onye ofufe na-agbanwe, yabụ na-akpata ihe egwu nchekwa.
A na-eji teknụzụ mkpuchi nitrogen eme ihe na ntinye akara nke tankị na mpaghara mmiri. A na-eji Nitrogen emeju oghere gas na tank mgbe ọkwa mmiri dị na tank dara ma ọ bụ okpomọkụ na-ebelata. Site na-ejuputa tank na nitrogen n'elu ọkwa mmiri mmiri, a na-egbochi mmiri mmiri na-aga n'ihu na-aga n'ihu ma na-egbochi ụzọ mgbapụ gasification. Mgbe ọkwa nri tank na-ebili ma ọ bụ okpomọkụ na-ebili, nrụgide gas dị na tank ahụ na-ebili, valvụ ikuku nitrogen na-emepe na nitrogen na-agbapụ, iji nọgide na-enwe nrụgide nrụgide na tank. Mgbe ejiri nitrogen mechie tankị nchekwa ahụ, ọ nwere ike ibelata ikuku ikuku nke tank ahụ nke ọma. Oghere gas dị na tank bụ ngwakọta nke gas na-ere ọkụ na nitrogen, nke na-agaghị emepụta ngwakọta gas na-agbawa agbawa. Ọ nwere ike imeziwanye nchekwa nchekwa nke ụlọ ọrụ ahụ, belata mgbasa ozi na-egbu egbu na nke na-emerụ ahụ na oghere ọrụ, ma chebe gburugburu ebe obibi nke ọma ma nọgide na-enwe ahụike anụ ahụ na nke uche nke ndị ọrụ. N'otu oge ahụ, ọnụ ọgụgụ nke iyuzucha gas ewebata n'ime gas usoro site nitrogen sealing ọgwụgwọ dị nnọọ obere (oke ego bụ ihe na-erughị 1000m3), na ọ gaghị emetụta n'ụzọ dị njọ na gas usoro pipeline.
Usoro eruba
(1) Tọọ nsị nke pipeline n'ihu ngwaọrụ njikwa ikuku oxygen na-adịghị mma dị ka -100-200Pa, na ntinye nke ọdụ ụgbọ mmiri na-ahapụ tank dị ka 0 ~ -50Pa. Dị ka ogologo nke pipeline si tank ka micro-adịghị mma ikuku oxygen na-achịkwa ngwaọrụ n'ihu onye na-afụ ọkụ, na dị iche iche pipeline ogologo na dị iche iche na-eguzogide, dozie suction nke tank na-ahapụ ọdụ ụgbọ mmiri dị ka set uru na oghere ogo nke valvụ na tank; (2) A na-ejikọta ngwaọrụ njikwa ikuku ikuku micro na-adịghị mma na ọkpọkọ ikuku reflux ma ọ bụ ọkpọkọ fan n'ihu, na-edozikwa ngwaọrụ njikwa ikuku oxygen na-adịghị mma na -1000 ~ -5000Pa site na valvụ na-achịkwa; (3) The pụrụ iche esịtidem Ọdịdị nke micro-adịghị mma mgbali oxygen akara ngwaọrụ na-emi esịnede suction ọkpọkọ, nrụgide ịmachi mmiri akara ụlọ, gas mmiri akara, agụụ ụlọ, baffle, regulating valvụ, reflux ọkpọkọ, agụụ nlele, tojuru pipe, mmiri ọkọnọ ọkpọkọ, wdg N'okpuru edinam nke adịghị mma mgbali, na gas na mbata ọkpọkọ etịbede site na mmiri akara na akụkụ, na-efe efe na-efe efe na mmiri dị elu, na-abanye n'ime ikuku gas, na-abanye n'ime mmiri ahụ. na-agbanwe na mgbanwe nke mmiri. Gas na-ekpocha ọkụ ahụ enwetara nwere ike ịgbaji site na akara mmiri iji rụọ usoro ikuku, ma mee ka nsị nke ọkpọkọ ikuku gas na-emerụ emerụ mgbe niile. A na-ejikọta ikuku mmiri nke gas na-ebupụ na mgbagwoju anya ịbanye na ọkpọkọ reflux wee laghachi na usoro akara mmiri. A na-ebute ụfọdụ ikuku mmiri n'ime gas site na gas, n'ihi ya, ọ dị mkpa iji pipụ mgbakwunye mmiri iji hụ na ịdị elu nke akara mmiri. Usoro a niile enweghị mgbapụta, enweghị ntapu, nchekwa na ntụkwasị obi, yana n'ezie na-achọpụta ọgwụgwọ efu nke ikuku gas. A na-etinye nsị nke tank ọ bụla na -100 ~ 0Pa, na ntinye nke tankị ọ bụla na-edozi dịka ogologo, caliber na iguzogide pipeline. A na-etinye valvụ nitrogen na-emeghe na mechiri emechi na valvụ mkpofu nitrogen, a na-edozikwa ọsọ nke fan site na njikwa ntụgharị ugboro ugboro. A na-edozi mmiri ahụ site na valvụ na-achịkwa n'ebe ọ bụla iji hụ na gas agaghị agbaba n'ime ikuku, ma n'otu oge ahụ, ọ nwere ike hụ na a na-echekwa nsị zuru ezu. Usoro a na-ahọrọ ngwá ọrụ nwere oke akpaaka, na mgbaàmà na-ejikọta ya na usoro nchịkwa nke etiti etiti nke mmepụta kemịkalụ, nke ndị ọrụ nke ụlọ ọrụ na-arụ ọrụ na-arụ ọrụ na-enweghị mgbakwunye ndị ọrụ ọzọ. Iji gbochie mgbochi pipeline, a na-etinye pipeline na-ehicha ọkụ n'elu ọkpọkọ nchịkọta gas na-ekpocha ọkụ, a na-emekwa nhicha mmiri mgbe niile.
Usoro uru: The VOCs adịghị mma nrụgide itule mgbake usoro nke Xinjieyuan Technology mepụtara enweghị ala mpaghara, obere ego na ọrụ na-eri, nke ọma ọgwụgwọ, efu umu anwuru, na VOC enwetara tar, amonia na benzene nwere ike ghọọ ndị ọzọ ngwaahịa mgbe e recycled site na usoro dị ka benzene ịsa ụlọ elu, na-eme ka mgbake ọnụego na-emeziwanye uru akụ na ụba nke ụlọ ọrụ mmepụta ihe.
Ụdị mgbanyụ ọkụ na-emerụ emerụ gas na-eweghachite usoro combustion (gasị ikuku oxygen dị elu)N'ime usoro a, a na-ewebata VOCs gas na ikuku oxygen dị elu na uru dị ala na mpaghara desulfurization na ngalaba ammonium sulfide n'ime usoro nrụgide na-adịghị mma nke oven oven dị ka nkesa ikuku iji sonye na combustion nke oven oven na ihe ndị VOCs bụ kpamkpam oxidized na decomrated.
Na-arụ ọrụ ụkpụrụ: The anakọtara gas na elu oxygen ọdịnaya na ala kwukwara uru ke chemical mmepụta mgbake ngalaba na-ẹkenam n'ime coke oven combustion dị ka ikuku nkesa mgbe acid ịsa ụlọ elu, alkali ịsa ụlọ elu na mmiri ịsa ụlọ elu, nke mere iji nweta nzube nke ọma oxidation na decomposition nke VOCs. Ka ọ dị ugbu a, ọtụtụ n'ime ụlọ ọrụ coking arụnyere coke oven flue gas desulfurization na denitration ngwaọrụ, akụkụ a nke sọlfọ dioxide, nitrogen oxide ga-ewepụ na desulfurization na denitration ngwaọrụ, nwere ike ihu ọma nweta efu umu anwuru nke VOCs ọgwụgwọ. Iji hụ na nchekwa, a na-edozi onye na-achọpụta ihe ọkụ ọkụ tupu a na-enyefe gas na-ekpo ọkụ n'ime oven coke maka combustion, nke nwere ike nyochaa mgbanwe nke ọkụ na ihe mgbawa na gas na-ekpo ọkụ n'oge na-ezigara mgbaàmà na usoro nchịkwa DCS. Mgbe ntinye ihe mejupụtara ahụ ruru oke setịpụrụ, DCS na-eti mkpu ma na-emepe valvụ nkesa ikuku na-akpaghị aka; Mgbe ntinye ihe mejupụtara ahụ ruru oke oke setịpụrụ, a na-ebipụ valvụ akpaka n'ime oven coke iji hụ na nchekwa mmepụta.
Usoro uru(1) Belata ego itinye ego n'ịrụ ụlọ site na iji oven mbụ nke coke dị ka ihe mgbanyụ ọkụ; (2) Ọnụ ego na-arụ ọrụ dị ala, VOC na gas na-ekpochapụ mgbe ọkụ ọkụ ọkụ nwere ike ịmegharị ya, belata oriri gas, belata nrụgide denitrification nke SCR azụ azụ; (3) Nchekwa dị elu, ọkwa dị elu nke akpaaka, nwere ike ịghọta n'atụghị egwu; (4) Nitrogen oxide na sọlfọ dioxide eme mgbe iyuzucha gas combustion nwere ike ozugbo wepụrụ site coke oven flue gas desulfurization na denitration ngwaọrụ, na-enweghị ọghọm nke omenala combustion usoro.
Usoro ịgba ọkụ na-emegharị onwe ya nke Rotary (RTO)
Usoro nsure ọkụ bụ usoro ịsachapụ gas na-ekpofu ahịhịa (VOCs) ugbu a nke ọma, nke ụlọ ọrụ dị iche iche ghọtara nke ọma. Regenerative Thermal Oxidizer (RTO), nke a makwaara dị ka incinerator regenerative. Teknụzụ ahụ bụ nke ụdị ụzọ mgba ọkụ, nchekwa ọkụ, ntinye oxidation thermal n'ime otu teknụzụ nchacha nke VOC.
Ụkpụrụ na-arụ ọrụ: Jiri pipeline na ndị na-eme ihe na-akpali akpali iji kpokọta gas na-agbapụ na-agba ọsọ dị nso, na gas na-ekpochapụ nke usoro ọ bụla bụ nkewa maka ịsacha na nhazi. A na-asa NH3 n'ime ikuku iyuzucha site na mmiri mmiri na-amịpụta na ụlọ elu pickling wee meghachi omume na H2SO4 n'ime mmiri mmịpụta ahụ, a na-ahapụkwa mmiri mmiri na-abanye n'ime ụlọ elu pickling na nne mmanya mmanya nke ngalaba ammonium sulfide. N'ime ụlọ ịsa ahụ alkali, a na-eji ngwọta NaOH na-amịkọrọ H2S, HCN na gas ndị ọzọ acidic na gas iyuzucha, na mmiri absorption na ụlọ elu ịsacha alkali na-ahapụ n'ime tank nke mechanized. Mgbe a sachara gas mkpofu nke ngalaba mmịpụta nnu, a na-asacha ihe ndị dị n'ime ikuku gas; A na-anakọta gas iyuzucha n'ime ọkpọkọ ikuku gas mgbe a sachara ya, wee ziga ya na onye na-ahụ maka mmiri mmiri gas site na onye na-agba agba agba maka nkewa mmiri mmiri. Mgbe usoro nyocha nke ntanetị na njikwa nrụgide / mgbaba n'ime usoro a, a na-ezigara onye isi ihe na-eme ka ọ bụrụ onye na-eme ka ọ bụrụ onye na-ere ọkụ na-echekwa okpomọkụ nke onwe (RTO) maka ọgwụgwọ ikpocha gas, ma mesịa nweta nkwụsị na-adịghị njọ.
Usoro uru
(1) Usoro ọgwụgwọ gas na-ekpofu ọkụ na usoro mmepụta oven nke coke anaghị emetụta ibe ha, na-adabere na ibe ya na ọnụ ala na-arụ ọrụ, ọ dịghị mkpa ka ị na-eri gas oven gas; (2) VOCs dị ọcha ọnụego ≥97% (ruo 99.5%), obere mmetụta na pipeline ikuku mgbali (± 25Pa, kwụsiri ike ọrụ), keukwu okpomọkụ mgbake ọnụego ≥95%; (3) Adịghị enwe mmetụta na oven oven, iji zere mmetụta dị ogologo oge nke nlọghachi gas na-ekpochapụ na oven oven; (4) Ọ nwere elu iyuzucha gas ọcha arụmọrụ karịa nloghachi combustion izute elu emission chọrọ n'ọdịnihu; (5) Ụdị valvụ Rotary RTO na-edozi usoro nchekwa 30, site na mgbọrọgwụ iji kpochapụ ihe ize ndụ nchekwa; (6) High ogo nke akpaaka, dum usoro nwere ike na-aghọta akpaka ọrụ, na-enweghị onye.
VOC ọgwụgwọ ikpe na coal mmepụta ogbako mkpofu gas ọgwụgwọ oru ngo
The mbụ ọgwụgwọ usoro nke n'efu gas si desulfurization, ammonium sulfate na nnu mmịpụta ọnọdụ na chemical mmepụta ogbako bụ na-anakọta ya uniformly wee banye acid ịsacha na alkali ịsacha ụlọ elu maka ịsacha, na mgbe ahụ zipu ya na coke oven maka ịgwakọta na combustion. N'ihi ọnọdụ nchebe gburugburu ebe obibi na-arịwanye elu, usoro ọgwụgwọ mbụ na-esiwanye ike igbo mkpa nke VOCs ọgwụgwọ miri emi.
Mgbe oge ngosi na nyocha gasịrị, ụlọ ọrụ anyị na-anakwere ụzọ usoro ejikọtara ọnụ nke ịsacha multi-stage + gas-mmire nkewa + nchekwa nchekwa ọkụ na-agbanwe agbanwe (RTO) na-adabere n'inweta ihe ochie. A na-asachapụ gas na-ekpochapụ nke usoro ọ bụla ma na-edozi ya site na nhazi. A na-asa NH3 n'ime ikuku iyuzucha site na mmiri mmịpụta dị na ụlọ elu pickling wee meghachi omume na H2SO4 n'ime mmiri mmịpụta. A na-ahapụ mmiri mmiri nnabata na ụlọ elu pickling na nne nne mmanya nke ngalaba ammonium sulfide. N'ime ụlọ ịsa ahụ alkali, a na-eji ngwọta NaOH na-amịkọrọ H2S, HCN na gas ndị ọzọ acidic na gas iyuzucha, na mmiri absorption na ụlọ elu ịsacha alkali na-ahapụ n'ime tank nke mechanized. Mgbe a sachara gas mkpofu nke ngalaba mmịpụta nnu, a na-asacha ihe ndị dị n'ime ikuku gas; A na-anakọta gas iyuzucha n'ime ọkpọkọ ikuku gas mgbe a sachara ya, wee ziga ya na onye na-ahụ maka mmiri mmiri gas site na onye na-agba agba agba maka nkewa mmiri mmiri. Mgbe usoro nyocha nke ntanetị na njikwa nrụgide / mgbaba n'ime usoro a, a na-eziga onye na-akwado isi ihe na-eme ka ọ bụrụ ọkụ na-echekwa okpomọkụ nke onwe (RTO) maka ọgwụgwọ ikpocha gas. VOCs≤20mg/Nm3 (na-abụghị methane ngụkọta hydrocarbon) mgbe mgbanwe; NOx≤35mg/Nm3; SO2≤15mg/Nm3; Ihe dị mkpa ≤10mg/Nm3; NH3≤5mg/Nm3; H2S≤0.5mg/Nm3; HCN≤0.5mg/Nm3, zuru ezu izute mkpa chọrọ nke Volatile Organic Matter Emission Standard for Industrial Enterprises, Pollutant Emission Standard for Coking Chemical Industry and ultra-ultra-low emission of pollutants, na nwere uru nke elu mwepụ arụmọrụ, ala na-ewu na arụmọrụ na-eri, nchekwa na ntụkwasị obi.
