Bag filter: PPS filter bag is heat-resistant and environmentally friendly for chemical dust removal
Sep 09,2025
The dust removal problem in chemical workshops always revolves around "high-temperature flue gas" and "corrosive dust" - the flue gas discharged from reaction vessels and distillation towers often reaches 200-260 ℃ and is mixed with corrosive gases such as SO ₂ and HCl. Ordinary filter bags soften and break after 3-6 months, causing frequent shutdowns and bag replacements, as well as being fined for excessive dust leakage. The bag filter equipped with PPS filter bags precisely solves this dilemma: it is resistant to high temperatures of 260 ℃, acid and alkali corrosion, and can stably achieve ultra-low emissions, becoming the "preferred choice" for dust removal in overseas chemical factories.
1、 PPS filter bag high temperature resistance: able to withstand high temperature conditions in chemical industry
PPS filter bags can become a "high-temperature weapon" for chemical dust removal, due to their material characteristics: using polyphenylene sulfide as raw material, the temperature resistance range is stable at 200-260 ℃, and they can withstand a peak temperature of 280 ℃ in the short term. Even in the face of the environmental temperature of 40 ℃+in the Middle East chemical workshop during summer, there will be no softening or shrinkage problems with the filter bags.
1. Significant practical effects in chemical industry scenarios
A fine chemical plant in the Middle East has a reaction kettle flue gas temperature of 230-250 ℃, containing 10% concentration of SO ₂. Previously, polyester filter bags were used, which required a monthly shutdown and bag replacement. The monthly maintenance cost exceeded $8000. After switching to PPS filter bag bag dust collector, the lifespan of the filter bag has been extended to 18 months, the annual maintenance cost has been reduced by 70%, and the equipment runs continuously without stopping, resulting in a 12% increase in production capacity.
2. Anti corrosion and no chain breakage, suitable for various types of chemical dust
Chemical dust often carries acidic and alkaline properties. PPS filter bags have strong resistance to corrosive gases such as SO ₂ and H ₂ S, and have a corrosion resistance life twice as long as ordinary corrosion-resistant filter bags.
2、 Environmentally friendly: ultra-low emissions+resource recycling, in line with global trends
The chemical industry has strict environmental requirements, and the "environmental protection power" of PPS filter bag dust collectors is not only reflected in meeting emission standards, but also helps factories achieve resource recycling.
1. High filtering accuracy, compliant and pressure free
After combining PPS filter bags with film coating technology, the removal rate of fine dust above 0.1 μ m reaches 99.9%, and the exhaust emission concentration is ≤ 8mg/m ³, which can meet the US EPA's "ultra-low emissions in the chemical industry" standard (≤ 10mg/m ³) and also adapt to the upgraded environmental requirements in Southeast Asia in recent years (≤ 20mg/m ³).
2. Dust recycling, turning waste into treasure
In chemical production, some dust (such as plastic particles and catalyst powder) can be recycled and reused. The dust collected by PPS filter bag bag dust collector is dry and free of impurities.
Summary: Choosing the right chemical dust removal method saves time and reduces costs
For overseas chemical factories, PPS filter bag dust collectors are not simply "dust removal equipment", but a comprehensive solution that is "resistant to high temperatures, corrosion-resistant, and environmentally friendly". It not only solves the pain point of vulnerable filter bags under high temperature conditions, but also helps factories save maintenance costs and pass international compliance audits, making it a reliable partner for dust removal in the chemical industry.
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