在化工、制藥、新能源等行業(yè)中，氯化氫是一種常見的工業(yè)原料，但氯化氫揮發(fā)性較強，在工業(yè)生成中會產(chǎn)生大量的有機廢氣，當(dāng)這類廢氣濃度較高時，采用傳統(tǒng)治理工藝效果會一般，無法滿足廢氣排放要求，同時大量的氯化氫原料被浪費。小編建議氯化氫廢氣處理采用冷凝回收處理95%左右+其他工藝（活性炭、樹脂等）處理5%左右，既能達(dá)標(biāo)排放，還能回收氯化氫，得到很好收益。

　　In industries such as chemical, pharmaceutical, and new energy, hydrogen chloride is a common industrial raw material. However, hydrogen chloride has strong volatility and generates a large amount of organic waste gas during industrial production. When the concentration of such waste gas is high, traditional treatment processes have limited effectiveness and cannot meet the requirements for waste gas emissions. At the same time, a large amount of hydrogen chloride raw materials are wasted. The editor suggests that the treatment of hydrogen chloride waste gas should adopt condensation recovery treatment of about 95% and other processes (such as activated carbon, resin, etc.) treatment of about 5%, which can not only meet the emission standards, but also recover hydrogen chloride and obtain good benefits.

　　一般反應(yīng)釜的氯化氫廢氣通過真空泵直接接到冷凝回收裝置，入口法蘭連接即可，整個冷凝回收裝置采用撬裝式設(shè)計，設(shè)備結(jié)構(gòu)緊湊占地面積小，實用性高，可根據(jù)業(yè)主使用位置靈活布局，同時冷凝回收裝置自動化程度較高，可根據(jù)業(yè)主的實際要求配置不同的廢氣治理方案，滿足個性化業(yè)主的定制要求，設(shè)備采用PLC自動化控制，實現(xiàn)了24小時無人值守自動化運行，可根據(jù)廢氣排放管線壓力控制制冷系統(tǒng)啟停，減小廢氣治理設(shè)備運行功耗。

　　The hydrogen chloride waste gas from the general reaction kettle is directly connected to the condensation and recovery device through a vacuum pump, and the inlet flange connection is sufficient. The entire condensation and recovery device adopts a modular design, with a compact equipment structure, small footprint, and high practicality. It can be flexibly arranged according to the owner's usage location. At the same time, the automation level of the condensation and recovery device is high, and different waste gas treatment plans can be configured according to the owner's actual requirements to meet the personalized owner's customization requirements. The equipment adopts PLC automation control, achieving 24-hour unmanned automatic operation. The refrigeration system can be started and stopped according to the pressure of the waste gas discharge pipeline, reducing the power consumption of the waste gas treatment equipment operation.

　　想要低功耗、高效率回收氯化氫治理廢氣，首先要明確氯化氫物質(zhì)的物理性質(zhì)，確定好尾氣的冷凝溫度。

　　To achieve low-power and high-efficiency recovery of hydrogen chloride for waste gas treatment, it is necessary to first clarify the physical properties of the hydrogen chloride substance and determine the condensation temperature of the exhaust gas.

　　一、在工藝設(shè)計中如何確定冷凝的溫度呢？下面我們鑫藍(lán)環(huán)保分別列舉高濃度和低濃度的氯化氫氣體工況。

　　1、 How to determine the condensation temperature in process design Below, Xinlan Environmental Protection lists the operating conditions of high concentration and low concentration hydrogen chloride gas.

　　1、高濃度的氯化氫氣體取500000mg/m為例。氣體成分高濃度氯化氫氣體濃度以500000mg/m為例處理效率取95%氣體壓力取120KPa所需冷凝溫度-135℃ 通過化工軟件模擬可以知道，500000mg/m這個濃度，壓力在120KPa下，要將氯化氫液化95%以上，需要將氣體冷凝到-5℃以下。

　　1. High concentration hydrogen chloride gas at 500000mg/m For example. Is the concentration of high concentration hydrogen chloride gas in the gas composition 500000mg/m For example, with a processing efficiency of 95% and a gas pressure of 120KPa, the required condensation temperature is -135 ℃ Through chemical software simulation, it can be known that 500000mg/m At this concentration and pressure of 120KPa, to liquefy hydrogen chloride to over 95%, the gas needs to be condensed to below -5 ℃.

　　2、低濃度的氯化氫氣體取10000mg/m為例。氣體成分低濃度氯化氫氣體濃度以10000mg/m為例處理效率取95%氣體壓力取120KPa所需冷凝溫度-165℃ 通過化工軟件模擬計算可以知道，10000mg/m這個濃度，壓力在120KPa下，要將氯化氫液化95%以上，需要將氣體冷凝到-165℃以下。

　　2. Low concentration hydrogen chloride gas at 10000mg/m For example. Gas composition: Low concentration hydrogen chloride gas concentration at 10000mg/m For example, if the processing efficiency is set to 95% and the gas pressure is set to 120KPa, the required condensation temperature is -165 ℃ Through chemical software simulation calculations, it can be known that 10000mg/m At this concentration and pressure of 120KPa, to liquefy hydrogen chloride to over 95%, the gas needs to be condensed to below -165 ℃.

　　二、哪些情況適合用冷凝法呢？

　　2、 What situations are suitable for using condensation method

　　1、高濃度2、低風(fēng)量3、無法直接采用RCO或RTO燃燒的氣體治理工藝適用工況處理效率特點冷凝風(fēng)量：低

　　1. High concentration 2, low air volume 3, unable to directly use RCO or RTO combustion gas treatment process applicable working conditions processing efficiency characteristics Condensation air volume: low

　　濃度：高冷凝處理99%+

　　Concentration: High condensation treatment of 99%+

　　1%達(dá)標(biāo)排放1、低溫低壓，安全性更高

　　1% compliant emissions 1. Low temperature and pressure, higher safety

　　2、可回收有機物，有經(jīng)濟價值

　　2. Recyclable organic matter with economic value

　　3、工藝簡單,制作周期短，易做成撬裝、易操作安裝、適合搭配其他工藝

　　3. Simple process, short production cycle, easy to pry and install, suitable for pairing with other processes

　　4、一次性投入高，運行費用低冷凝+吸附風(fēng)量：低

　　4. High one-time investment, low operating costs. Condensation and adsorption air volume: low

　　濃度：高冷凝處理95%

　　Concentration: High Condensation Treatment 95%

　　+吸處理5%VOC廢氣經(jīng)過冷凝處理，大部分被液化回收，剩余少量氣體進(jìn)入吸附裝置處理?？山档颓岸死淠b置的工況負(fù)荷，從而降低成本，還能保證排放達(dá)標(biāo)。吸附脫附+冷凝風(fēng)量：高

　　+The 5% VOC exhaust gas is treated by condensation, and most of it is liquefied and recovered. The remaining small amount of gas enters the adsorption device for treatment. It can reduce the operating load of the front-end condensing device, thereby lowering costs and ensuring emissions meet standards. Adsorption desorption+condensation air volume: high

　　濃度：低1、冷凝處理99%

　　Concentration: Low 1, condensation treatment 99%

　　+1%稀釋排放

　　+1% diluted emissions

　　2、冷凝處理99%

　　2. Condensation treatment 99%

　　+5%返回前端吸附風(fēng)量偏大的氣體，直接用冷凝工藝，投資會偏大，可以通過吸附脫附濃縮技術(shù)，將大風(fēng)量的氣體濃縮后，轉(zhuǎn)化為低風(fēng)量、高濃度的氣體，再進(jìn)入冷凝液化系統(tǒng)，這樣可節(jié)約成本。三、哪些區(qū)域，冷凝裝置運行效果優(yōu)越？

　　+5% of the gas with a high adsorption air volume can be directly condensed using a condensation process, which will result in higher investment. Adsorption desorption concentration technology can be used to concentrate the high air volume gas and convert it into low air volume, high concentration gas before entering the condensation liquefaction system, which can save costs. 3、 Which areas have superior performance of condensing devices

　　1、生產(chǎn)投放區(qū)：拉缸、攪拌反應(yīng)釜溶劑揮發(fā)損耗;

　　1. Production and deployment area: Loss of solvent evaporation in the drum and stirring reaction kettle;

　　2、化學(xué)儲罐區(qū)：排空閥門的呼吸揮發(fā)損耗;

　　2. Chemical storage tank area: respiratory volatilization loss of emptying valves;

　　3、裝卸轉(zhuǎn)運區(qū)：槽車排空呼吸揮發(fā)損耗;

　　3. Loading and unloading transfer area: tank truck emptying, breathing, volatilization loss;

　　4、各種揮發(fā)性化學(xué)品裝車、化學(xué)品儲運、化工制藥行業(yè)所產(chǎn)生的各種揮發(fā)性VOCS氣體的回收。

　　4. The recovery of various volatile VOCs gases generated from the loading, storage, and transportation of volatile chemicals in the chemical and pharmaceutical industries.

　　四、哪些情況適合用冷凝法呢？

　　What situations are suitable for using condensation method

　　1、高濃度2、低風(fēng)量3、無法直接采用RCO或RTO燃燒的氣體

　　1. High concentration 2. Low air volume 3. Gas that cannot be directly burned with RCO or RTO

　　冷凝回收的有機廢氣種類較多如：苯類、酮類、醇類、酯類、烷類、烯類、醚類有機廢氣冷凝回收，其他VOCs：DMF、醛類、乙腈、丙腈、戊腈、溶劑油、汽油。

　　There are many types of organic waste gases that can be condensed and recovered, such as benzene, ketones, alcohols, esters, alkanes, alkenes, and ethers. Other VOCs include DMF, aldehydes, acetonitrile, acrylonitrile, pentanitrile, solvent oil, and gasoline.

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