How to choose VOC waste gas treatment equipment in the chemical industry? First, check if there are halogenated hydrocarbons in the exhaust gas

    VOCWaste gas treatment equipmentHow to choose in the chemical industry? First, check if there are halogenated hydrocarbons in the exhaust gas

VOC in the chemical industrywaste gas treatmentThe primary issue in selecting is to determine whether there are halogenated hydrocarbons in the exhaust gas.

Halogenated hydrocarbons include chlorinated organic compounds such as dichloromethane, chloroform, and chlorobenzene. The difficulty in handling such substances lies not in whether the concentration is high or not, but in the presence of chlorine. If the combustion method is used for treatment, it is easy to produce toxic by-products such as dioxins and furans at high temperatures, which is a hidden danger to the environment and safety.activated charcoalAlthough adsorption can temporarily adsorb, dichloromethane has a low boiling point, fast volatilization, and fast saturation rate of the carbon layer. Carbon replacement is frequent, and the cost of disposing of saturated carbon as hazardous waste is not low.

If the exhaust gas contains halogenated hydrocarbons, it is recommended to prioritize physical separation routes. The compression condensation membrane separation process mainly relies on physical separation and does not involve combustion, thus avoiding the risk of dioxin production from the source. At the same time, the membrane separation process has good selectivity for halogen containing solvents such as dichloromethane, which can be concentrated and condensed back into liquid form, solving the emission problem and achieving resource recovery.

If the exhaust gas does not contain halogenated hydrocarbons, mainly non halogenated organic compounds such as alkanes, alcohols, esters, ketones, etc., the selection range is wider. It can be judged based on concentration and air volume. Low concentration, high air volume, continuous emission,RTOIt is a common choice; Membrane condensation or a combination of condensation and membrane separation processes are more suitable for those with medium to high concentration and recycling value; Activated carbon can also be used with low wind volume, intermittent emissions, and limited budget, but long-term operating costs need to be taken into account.

When choosing VOC treatment equipment in the chemical industry, first check for halogenated hydrocarbons - if halogenated hydrocarbons are present, avoid combustion methods; There is no halogenated hydrocarbon, and it depends on concentration, air volume, and recovery value. Don't wait until the equipment is installed to realize that you have chosen the wrong process. Before selecting, we conducted exhaust gas testing and used the data to speak for ourselves. LuoyangWohong PetrochemicalEquipment Co., Ltd. can provide compression condensation membrane separation solutions for halogenated hydrocarbon containing waste gas to avoid combustion risks and achieve solvent recovery.