• 行業(yè)簡介

  石化廢氣按生產(chǎn)行業(yè)可分為石油煉制廢氣、石油化工廢氣、合成纖維廢氣和石油化肥廢氣。四大生產(chǎn)行業(yè)排放的廢氣按排放方式可分為：燃燒煙氣、生產(chǎn)工藝廢氣、火炬廢氣和無組織排放廢氣。石油化學(xué)工業(yè)中的煉油廠和石化廠的加熱爐和鍋爐燃燒排放燃燒廢氣，生產(chǎn)裝置產(chǎn)生不凝氣、弛放氣和反應(yīng)中產(chǎn)生的副產(chǎn)品等過剩氣體，輕質(zhì)油品、揮發(fā)性化學(xué)藥品和溶劑在貯運(yùn)過程中的揮發(fā)、泄漏，廢水和廢棄物的處理和運(yùn)輸過程中散發(fā)的惡臭和有毒的氣體，以及石化工廠再生產(chǎn)原料和產(chǎn)品運(yùn)輸過程中的揮發(fā)和泄漏散發(fā)出的廢氣是石化工業(yè)廢氣的主要來源。

   

  行業(yè)特點(diǎn)

  石化煉油廠含有大量的有害氣體，甲硫醇、甲硫醚、苯、苯乙烯、硫化氫等，這些化學(xué)氣體，不僅僅會引發(fā)頭痛、及不同程度的麻醉，還會使人食欲減退，神經(jīng)系統(tǒng)麻醉等癥狀。石油煉制是一個惡臭污染較重的行業(yè)。

• 石油化工廢氣處理行業(yè)產(chǎn)污環(huán)節(jié)：

  石化行業(yè)廢氣可分為石油煉制廢氣、石油化工廢氣、合成纖維廢氣和石油化肥廢氣。四大生產(chǎn)行業(yè)排放的廢氣按排放方式可分為：燃燒煙氣、生產(chǎn)工藝廢氣、火炬廢氣和無組織排放廢氣。

    1、 燃燒煙氣污染：石化裝置燃燒煙氣排放量約占廢氣排放總量的60%。石化的加熱爐多以減壓渣油為燃料，渣油含硫約0.2—3%，燃燒產(chǎn)生廢氣中含有二氧化硫、氮氧化物和塵，經(jīng)除塵后排放，其中的二氧化硫、氮氧化物多未處理，一般采用高空排放。

    2、 工藝廢氣污染：石化企業(yè)生產(chǎn)裝置規(guī)模較大，因此工藝廢氣排放量較大。污染物擴(kuò)散范圍較大，雖經(jīng)高空排放，環(huán)境污染仍較嚴(yán)重。

    3、 火炬廢氣污染：火炬是石化生產(chǎn)必備的安全環(huán)保設(shè)施。石化生產(chǎn)裝置在開、停工及非正常操作(如放氣減壓)情況下將可燃性氣體泄到火炬燃燒后排放。火炬排污量相對加熱爐要大，對環(huán)境影響也較大。

    4、 尾氣污染：石化生產(chǎn)的工藝廢氣經(jīng)工業(yè)裝置回收及處理后成為尾氣排入環(huán)境。

    5、 無組織排放的廢氣污染：石化企業(yè)的無組織排放主要包括兩部分：一是生產(chǎn)過程中管線、機(jī)泵、設(shè)備等的泄漏、級地溝內(nèi)的揮發(fā)排入環(huán)境的有害氣體;二是輕質(zhì)石油化工產(chǎn)品在儲運(yùn)過程中的石油產(chǎn)品蒸氣揮發(fā)進(jìn)入環(huán)境污染空氣。

蓄熱焚燒爐英文名為“Regenerative Thermal Oxidizer”，故簡稱為“RTO”，它通常由多個蓄熱室組成。在設(shè)備運(yùn)行前運(yùn)用點(diǎn)燒器加溫把有機(jī)廢氣加熱到800℃以上，從而使廢氣中的VOC在氧化室氧化分解成二氧化碳和水。氧化產(chǎn)生的高溫氣體流經(jīng)特制熱陶瓷，使蓄熱陶瓷升溫而“蓄熱”；此“蓄熱”用于預(yù)熱后續(xù)進(jìn)入的有機(jī)廢氣，從而節(jié)省用于廢氣升溫的燃料；蓄熱室，“放熱立即引入已處理合格的潔凈煙氣的一部分對該蓄熱室進(jìn)行清掃。每個蓄熱室依次經(jīng)歷蓄熱放熱清掃等程序，周而復(fù)始，連續(xù)工作。

安居樂VOC沸石轉(zhuǎn)輪濃縮GRTO裝置簡介:

Zeolite Rotary Concentrator Wheel+ GRTO:

對于低濃度?大風(fēng)量的VOC污染廢氣，上海安居樂環(huán)�？萍脊煞萦邢薰就瞥鲎灾髦R產(chǎn)權(quán)的GRTO工藝，進(jìn)一步完善了傳統(tǒng)的VOC濃縮+RTO蓄熱燃燒裝置工藝，可以將低濃度、大風(fēng)量的污染空氣濃縮為小風(fēng)量、高濃度的廢氣后進(jìn)行熱力燃燒處理，效率提升，安全提升，而且可以降低運(yùn)行成本，實(shí)現(xiàn)低成本、高效率VOC尾氣處理達(dá)標(biāo)排放，是行業(yè)領(lǐng)先的有機(jī)揮發(fā)性VOC和惡臭HAP廢氣環(huán)保治理工藝。

How to treat low concentration with large air flow waste stream? Shanghai Anjule has patent designed solutions with the zeolite concentrators to reduce the air flow of the pollutant and concentrate the VOCs before the RTO treatment. Improve the removal efficiency, reduce the operating cost while meeting the regulations. This is a leading technologies in treating VOCs and HAP.

常規(guī)有機(jī)廢氣濃縮轉(zhuǎn)輪和RTO（RCO）處理流程如下：

The process flow for zeolite rotary concentrator wheel+ RTO (RCO)

安居樂的工藝技術(shù)更加貼近廢氣工況，以大風(fēng)量的噴漆廢氣處理為例：
車間排放有機(jī)廢氣通過總管道送至G渦流凈化塔做漆霧顆粒去除處理，后經(jīng)過除霧器，再經(jīng)過專門設(shè)計(jì)的組合過濾器后，由VOC沸石濃縮轉(zhuǎn)輪吸附區(qū)吸附，吸附效率為90%以上；排放廢氣由吸附風(fēng)機(jī)抽出，并達(dá)標(biāo)排放；
濃縮轉(zhuǎn)輪吸附住的有機(jī)物，從轉(zhuǎn)輪脫附區(qū)域脫附出來進(jìn)入RTO高溫氧化處理

Anjule technology can be applied to work with the process specifications. For example, emission from coating industrial has the characteristic of high air volume: the waste gas was sent to the G-vortex column to remove particulate. After the dehumidifier process, the waste gas was sent to a specially designed filter before entering the rotary concentrator for VOCs adsorption. The removal efficiency can achieve VOC removal efficiency above 90%. A system fan was installed to release the cleaned air, which is in compliance with the regulations. The air stream then transfer to the RTO for further treatment.

一、轉(zhuǎn)輪入口G渦流凈化塔
安居樂G渦流洗滌凈化塔采用獨(dú)特的渦流結(jié)構(gòu)；凈化去除有機(jī)廢氣中漆物，以滿足轉(zhuǎn)輪入口條件；優(yōu)點(diǎn)：1、不易堵塞，無需更換填料。2、運(yùn)行成本低。3、漆粒去除效率高，防治漆粒積蓄在轉(zhuǎn)輪上發(fā)生火災(zāi)。

1. Rotary entrance with G-vortex column

Anjule G-vortex column has a unique vortex structure, purify and remove the paint organic substance from gas.

The advantage: 1. Avoid the blockage of the packing media; reduce the operating cost; and achieve high removal efficiency of VOC substance. Minimize the accumulation of the paint substance0n the rotary and at a result prevent fire hazard.

二、先進(jìn)轉(zhuǎn)輪裝置

2. Advance rotary device

安居樂設(shè)有專門的VOC處理實(shí)驗(yàn)室，廢氣治理實(shí)驗(yàn)工程中心，轉(zhuǎn)輪裝置引進(jìn)日本，實(shí)驗(yàn)測試具體成分的轉(zhuǎn)輪效率，保障項(xiàng)目的成功率。轉(zhuǎn)輪吸附裝置的優(yōu)點(diǎn)體積小、操作方便、壓降低；它可以連續(xù)地將大的廢氣流量處理成濃度足夠低的凈化氣，而解吸出來的氣體則濃度高而流量低，從而進(jìn)入低風(fēng)量RTO裝置徹底燃燒。

Aujule has set up a laboratory and an engineering center for the design of the exhaust gas VOC treatment. The rotary wheels are imported from Japan; the VOC compounds removal rate are measured in a laboratory to ensure the successful treatment for the environmental projects.

The advantage of our rotary concentrator: small size, convenience, low pressure lost and work continuously to concentrate low VOC concentration waste gas. The rotary processed gas has a high concentration of VOC with less volume and therefore reduce the amount of the waste gas for the RTO treatment.

三、安全性高
安居樂獨(dú)家專利設(shè)計(jì)的GRTO工藝充分考慮了消防、防爆等安全因素，運(yùn)行穩(wěn)定，安全可靠，工藝完整。

3. Safety guarantee

Patent designed of Anjule GRTO has put the fire, explosions and other safety factors into fully consideration. The operation of the GRTO is steady, safe and reliable.

四、技術(shù)先進(jìn)性
GRTO 控制系統(tǒng)設(shè)有軟硬體聯(lián)鎖，可通過溫度、壓力等反饋，及時調(diào)節(jié)響應(yīng)聯(lián)動器件，可有效保障系統(tǒng)安全。RTO控制系統(tǒng)采用PLC,安置在控制盤體內(nèi)；配有火焰強(qiáng)度顯示、高溫控制器、報(bào)警、復(fù)位、開關(guān)機(jī)、緊急停機(jī)以及記錄儀；RTO系統(tǒng)與產(chǎn)線進(jìn)行無縫銜接，確保不影響現(xiàn)有工藝及生產(chǎn)。

4. Advance Technology

GRTO control system equipped with software and hardware interlocks, through temperature, pressure responses, the system reacts immediately to the safety control of the system. Effectively，protect the safety of the system . RTO control system uses PLC, installed inside of the control panels; equipped with flame intensity detector, temperature controllers, alarm, reset,0n and off switch, emergency stop, and a recorder; RTO system works seamlessly with the production line without interfering to the existing production.

五、運(yùn)行費(fèi)用優(yōu)勢
濃度越高運(yùn)行成本越低。所以采取合理的技術(shù)手段增加有機(jī)廢氣進(jìn)入RTO（RCO）時的濃度，以及減少廢氣處理量是減少RTO（RCO）投資與提高運(yùn)行效率的有效途徑。

5. The low operating cost advantage

Lower operating cost can be achieved with high VOC concentration in the waste stream. Using a rotary concentrator to reduce the volume of the waste gas is a feasible way in decreasing the cost.