• 石化废气按生产行业可分为石油炼制废气、石油化工废气、合成纤维废气和石油化肥废气。四大生产行业排放的废气按排放方式可分为：燃烧烟气、生产工艺废气、火炬废气和无组织排放废气。石油化学工业中的炼油厂和石化厂的加热炉和锅炉燃烧排放燃烧废气，生产装置产生不凝气、弛放气和反应中产生的副产品等过剩气体，轻质油品、挥发性化学药品和溶剂在贮运过程中的挥发、泄漏，废水和废弃物的处理和运输过程中散发的恶臭和有毒的气体，以及石化工厂再生产原料和产品运输过程中的挥发和泄漏散发出的废气是石化工业废气的主要来源。

  
  

  行业特点

  石化炼油厂含有大量的有害气体，甲硫醇、甲硫醚、苯、苯乙烯、硫化氢等，这些化学气体，不仅仅会引发头痛、及不同程度的麻醉，还会使人食欲减退，神经系统麻醉等症状。石油炼制是一个恶臭污染较重的行业。

  
  

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  石油化工废气处理行业产污环节：

  石化行业废气可分为石油炼制废气、石油化工废气、合成纤维废气和石油化肥废气。四大生产行业排放的废气按排放方式可分为：燃烧烟气、生产工艺废气、火炬废气和无组织排放废气。

    1、 燃烧烟气污染：石化装置燃烧烟气排放量约占废气排放总量的60%。石化的加热炉多以减压渣油为燃料，渣油含硫约0.2—3%，燃烧产生废气中含有二氧化硫、氮氧化物和尘，经除尘后排放，其中的二氧化硫、氮氧化物多未处理，一般采用高空排放。

    2、 工艺废气污染：石化企业生产装置规模较大，因此工艺废气排放量较大。污染物扩散范围较大，虽经高空排放，环境污染仍较严重。

    3、 火炬废气污染：火炬是石化生产必备的安全环保设施。石化生产装置在开、停工及非正常操作(如放气减压)情况下将可燃性气体泄到火炬燃烧后排放。火炬排污量相对加热炉要大，对环境影响也较大。

    4、 尾气污染：石化生产的工艺废气经工业装置回收及处理后成为尾气排入环境。

    5、 无组织排放的废气污染：石化企业的无组织排放主要包括两部分：一是生产过程中管线、机泵、设备等的泄漏、级地沟内的挥发排入环境的有害气体;二是轻质石油化工产品在储运过程中的石油产品蒸气挥发进入环境污染空气。

  
  

石油化学工企业排放包括：烃类、醇类、醛类、酸类、酮类和胺类、丁二烯、二氯甲烷等有机物废气。

选择治理方案的几个基本要素：

根据废气成分（是否含有水分、固态物、油状物，及处理难易程度）、浓度（高、低）、排放形式（连续或间歇排放）选择处理方案

石油化工废气处理的三种处理技术：

安居乐VOC沸石转轮浓缩GRTO装置简介:

Zeolite Rotary Concentrator Wheel+ GRTO:

对于低浓度?大风量的VOC污染废气，上海安居乐环保科技股份有限公司推出自主知识产权的GRTO工艺，进一步完善了传统的VOC浓缩+RTO蓄热燃烧装置工艺，可以将低浓度、大风量的污染空气浓缩为小风量、高浓度的废气后进行热力燃烧处理，效率提升，安全提升，而且可以降低运行成本，实现低成本、高效率VOC尾气处理达标排放，是行业领先的有机挥发性VOC和恶臭HAP废气环保治理工艺。

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.

常规有机废气浓缩转轮和RTO（RCO）处理流程如下：

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

安居乐的工艺技术更加贴近废气工况，以大风量的喷漆废气处理为例：
车间排放有机废气通过总管道送至G涡流净化塔做漆雾颗粒去除处理，后经过除雾器，再经过专门设计的组合过滤器后，由VOC沸石浓缩转轮吸附区吸附，吸附效率为90%以上；排放废气由吸附风机抽出，并达标排放；
浓缩转轮吸附住的有机物，从转轮脱附区域脱附出来进入RTO高温氧化处理

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、转轮入口G涡流净化塔
安居乐G涡流洗涤净化塔采用独特的涡流结构；净化去除有机废气中漆物，以满足转轮入口条件；优点：1、不易堵塞，无需更换填料。2、运行成本低。3、漆粒去除效率高，防治漆粒积蓄在转轮上发生火灾。

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、先进转轮装置

2. Advance rotary device

安居乐设有专门的VOC处理实验室，废气治理实验工程中心，转轮装置引进日本，实验测试具体成分的转轮效率，保障项目的成功率。转轮吸附装置的优点体积小、操作方便、压降低；它可以连续地将大的废气流量处理成浓度足够低的净化气，而解吸出来的气体则浓度高而流量低，从而进入低风量RTO装置彻底燃烧。

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
安居乐独家专利设计的GRTO工艺充分考虑了消防、防爆等安全因素，运行稳定，安全可靠，工艺完整。

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、技术先进性
GRTO 控制系统设有软硬体联锁，可通过温度、压力等反馈，及时调节响应联动器件，可有效保障系统安全。RTO控制系统采用PLC,安置在控制盘体内；配有火焰强度显示、高温控制器、报警、复位、开关机、紧急停机以及记录仪；RTO系统与产线进行无缝衔接，确保不影响现有工艺及生产。

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、运行费用优势
浓度越高运行成本越低。所以采取合理的技术手段增加有机废气进入RTO（RCO）时的浓度，以及减少废气处理量是减少RTO（RCO）投资与提高运行效率的有效途径。

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.