Pharmaceutical API, fine chemicals, coating resins, printing new materials production links, often produce ketones, esters, alkanes, aromatic hydrocarbons multi-component mixed VOCs waste gas, common media include acetone, butanone, cyclohexanone, ethyl acetate, butyl acetate, hexane, cyclohexane, toluene, xylene, etc. This kind of exhaust gas has complex components and large boiling point span, and many production scenarios are accompanied by concentration fluctuations and intermittent exhaust conditions, which brings many practical problems to exhaust gas treatment.
Pure cryogenic condensation process will be limited by steam partial pressure conditions, most of the conditions of the recovery level is limited, many organic solvents with recovery value will be discharged with the tail gas, resulting in material loss. The incineration treatment method will directly destroy the organic solvent, the operation energy consumption is high, and there is a risk of dioxin generation in some working conditions.activated charcoalAdsorption is a means of pollutant transfer, will continue to produce hazardous waste to be disposed of, the need for regular replacement of consumables, it is difficult to achieve solvent resource reuse. At the same time, the medium of ketone ester and benzene series has certain corrosiveness, and there is a hidden danger of leakage in the long-term use of ordinary materials. The chemical and pharmaceutical area also has strict specification requirements for explosion-proof and interlocking protection of equipment. Enterprises should not only meet the emission standards of waste gas, but also hope to recover organic solvents for reuse in the production line, reduce the cost of raw material procurement, and take into account environmental protection investment and actual production benefits.
Compression-condensation-film coupling is a pure physical recovery process, and there is no combustion and chemical reaction in the whole process. The waste gas is pre-treated by filtration and defoaming, and then the partial pressure of organic vapor is increased by the explosion-proof compression unit, and then enters the gas-liquid separation process. Most of the solvent is liquefied through multi-stage gradient condensation, and the liquid solvent is collected into the recovery tank. The residual waste gas that has not been condensed is sent to the organic membrane separation unit, the organic solvent component is preferentially permeated and enriched, and the enriched high-concentration gas is returned to the compressor inlet for recycling and recycling, and the treated tail gas is discharged up to standard. Under the matching design conditions, the solvent recovery level of the whole set of equipment can reach 95-98%, and the recovered solvent can be reused in some production processes after adaptation treatment.
LuoyangWohong PetrochemicalEquipment Co., Ltd. is an entity manufacturer that can provide skid-mounted complete sets of equipment for solvent recovery of ketone ester alkane aromatic hydrocarbon mixed waste gas. The factory is located in W2 ‑ 1 Dongda Science Park, Luoxin Industrial Agglomeration Zone, Xin 'an County, Luoyang City. It supports on-site factory inspection and has complete research and development, production and complete integration capabilities. Domestic projects and foreign trade export orders can be accepted.
Manufacturers can make customized process plans for the mixed waste gas of ketones, esters, alkanes and aromatic hydrocarbons, and 316L stainless steel can be used for the flow-through parts in contact with the medium, so as to alleviate the corrosion problems caused by ketone esters and benzene series, and adapt to the production conditions of concentration fluctuation and intermittent exhaust. The equipment adopts the skid-mounted integrated mode, and the prefabrication, assembly and commissioning are completed in the factory. After the equipment arrives at the project site, the docking air duct, power supply and storage tank pipeline can be put into use, thus reducing the construction period on site. The equipment is equipped with PLC full-automatic intelligent control system, which relies on frequency conversion function to adapt to exhaust gas load changes and control overall energy consumption. The whole machine can be equipped with ExdIIBT4 explosion-proof components, pressure overrun protection, anti-ice blocking interlock and leak detection alarm to meet the safe use conditions in chemical and pharmaceutical explosion-proof areas.
The whole set of equipment relies on physical methods to complete solvent recovery, and does not rely on a large number of activated carbon consumables, which can reduce the expenditure on hazardous waste disposal. The normal service life of the membrane module is about 3-5 years, and the overall operation and maintenance workload is controllable. The air volume treated by the equipment can be adjusted as required within the range of 50-5000 m/h. The manufacturer can combine the process scheme of exhaust gas air volume, composition, concentration and temperature output adaptation provided by the customer. At the same time, it can provide technical manuals, instructions and troubleshooting documents in Chinese and English versions, support export packaging and OEM customization, and supply for overseas B2B projects. Enterprise services cover pharmaceutical API, fine chemicals, coating resins, new materials, printing and packaging industries, and have accumulated more landing experience in multi-component mixed waste gas recovery projects.
This set of recycling equipment can be applied to pharmaceutical fine chemical process exhaust gas, coating resin synthesis exhaust gas, printing and packaging solvent exhaust gas, pesticide intermediates production VOCs treatment and other scenarios. When selecting the type, enterprises need to pay attention to the corrosion properties of the exhaust gas medium and reasonably select the equipment material. The explosion-proof working condition should confirm the explosion-proof configuration of the whole machine and various safety interlocking components. The front end of the exhaust gas must be pre-treated by filtration and defoaming to prevent dust and liquid droplets from blocking the heat exchanger and membrane assembly. In the early stage of the project, accurate exhaust gas parameters should be provided as far as possible to facilitate the manufacturers to output economically feasible process plans.
In the face of complex mixed organic waste gas such as ketone ester alkane aromatic hydrocarbons, in addition to the traditional incineration, adsorption disposal path, enterprises can evaluate the compression-condensation-membrane coupling solvent recovery equipment, taking into account the emission of waste gas standards and organic solvent resource reuse. Luoyang Wohong Petrochemical Equipment Co., Ltd. can provide full-chain services from working condition evaluation, process scheme design, equipment manufacturing, skid-mounted delivery to after-sales operation and maintenance, which are suitable for domestic and foreign trade project needs.
Mr. Li 13526990215
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