Description
Product Overview
Industrial wet scrubber purpose-built for acid mist and fume removal from electroplating, metal pickling, chemical processing, and laboratory exhaust. Handles HCl, H2SO4 mist, HNO3, HF, H3PO4, and chromic acid — the full spectrum of mineral acids found in manufacturing environments. Air volume 50-150000 m3/h, removal efficiency over 95% for acid gases and over 90% for sub-micron acid mist droplets.
| Target pollutants | HCl, H2SO4 mist (sub-micron droplets), HNO3, HF, H3PO4, chromic acid (CrO3), mixed acid fumes |
| Material | Virgin PP (standard); HF-grade PP (fluoride-resistant); FRP (high-temp or mixed solvent service) |
| Scrubbing medium | NaOH (standard); water-soluble for some applications |
| Efficiency | HCl over 98%; H2SO4 mist over 95%; HNO3 over 90%; HF over 95% |
| Air volume | 50 – 150,000 m3/h single tower; parallel for larger plant-wide systems |
| Lead time | Standard 10-20 days; HF-grade material adds 5-7 days |
| Warranty | 12 months structure warranty |
Why an Acid Fume Scrubber Is Different
Acid fumes aren’t just gases — they’re a two-phase challenge. HCl and HNO3 form fine mist droplets (0.1-5 micron) when they contact humid air. These droplets behave differently from gas molecules: they’re harder to absorb, they deposit on ductwork causing corrosion upstream of the scrubber, and they contribute to visible stack plume even when gas-phase removal is complete. A scrubber designed for acid fumes addresses both phases: gas-phase absorption via counter-current packed bed with caustic scrubbing solution, mist capture via the packed bed itself acting as a mist filter, and a high-efficiency chevron or mesh pad demister at the outlet capturing re-entrained droplets and eliminating visible plume — which is often the complaint that triggers a regulatory inspection.
Read: Acid Scrubbers: Corrosion, Tank and Emission Solutions
Why Xicheng
16 years, 2600+ systems shipped worldwide. Acid fume scrubbers are our highest-volume product line. The experience that comes from building thousands of them translates into details that matter:
- Material selection per acid, not per price. HCl at 50 C is one thing. HF at any concentration etches glass and attacks standard PP at weld zones. Mixed HNO3 + HF pickling bath exhaust requires HF-grade PP or FRP. We don’t guess — send us your acid types and concentrations; we specify the material from our compatibility database built across thousands of installations.
- Pre-engineered for electroplating. Plating shops present unique challenges: multiple exhaust sources (degreasing, pickling, plating, rinsing), intermittent operation per bath, and chromium mist from hexavalent chrome plating — a listed carcinogen with specific regulatory requirements. We’ve built hundreds of electroplating scrubbers and understand push-pull ventilation for open-surface tanks, separate duct runs for chrome vs non-chrome exhaust, and sizing for peak simultaneous operation.
- Anti-clog spray nozzles. Acid mist carryover can form salt deposits (NaCl, Na2SO4) that clog standard spray nozzles within weeks. We use large-orifice PP spiral nozzles with 6-8 mm minimum passage — they pass salt crystals without blocking. Combined with automatic fresh-water flush on shutdown, nozzle maintenance intervals extend from weeks to quarters.
Tell us your acid types and air volume: xicheng023@outlook.com. If you have multiple exhaust sources, a simple floor plan sketch helps us size the duct runs too.
Core Advantages
- High Purification Efficiency: Delivers high dust removal and desulfurization efficiency. Effectively removes various industrial organic and inorganic waste gases, including HCL, HF, NH3, H2SO4, CrO3, HCN, NAOH, H2S, and HCHO.
- Durable and Premium Material: Manufactured using new PP material, offering excellent anti-corrosion and wear-resistant properties, ensuring a long service life and high cost-performance.
- Compact Design and Low Consumption: Features a simple structure that occupies minimal space. Operates stably with low energy consumption.
- Easy Installation and Operation: Improved with a floating packing layer, it is highly practical, easy to install, and simple to operate, making it ideal for acid-base waste gas treatment.
- Flexible Customization and After-Sales Service: Supports personalized customization; sizes and specifications can be adjusted according to customer needs and drawings. Comes with a 1-year warranty, professional installation guidance, and comprehensive overseas after-sales support.
Key Specifications
| Model No. | XC-1 |
| Material | New PP (Polypropylene) Material |
| Function | Waste Gas Treatment (Chemical Treatment) |
| Purifying Technology | HEPA |
| Automation | Automatic |
| Service Life | 8-10 Years |
| Color | Beige / Dark Grey |
| Environmental Temperature | Normal Temperature |
| Brand / Origin | Xicheng / China |
Certifications and Compliance
- CE Certified – Wet Scrubber, Exhaust Fan, Air Valve
- RoHS Compliant – Adsorption Tower materials
- ISO 9001 – Quality Management System
- ISO 14001 – Environmental Management System
- SGS Tested – PP Sheet, PPS Flame Retardant Sheet, PP Pipe, PPS Flame Retardant Pipe, PVC Sheet
- Design Compliance – Systems designed to meet EU Industrial Emissions Directive (2010/75/EU) and US EPA Chemical Manufacturing NESHAP. Hexavalent chromium per OSHA Cr(VI) requirements.
Model Selection Table
Standard model range — all dimensions in millimeters. Custom sizes outside this range available on request.
| Air Volume (m3/h) | Diameter (mm) | Thickness (mm) | Drain Outlet | Water Tank (mm) | Inlet/Outlet Pipe | Pump (kW) | Air Resistance (Pa) |
|---|---|---|---|---|---|---|---|
| 3,000 | 800 | 8 | DN32 | 600x700xH700 | 315 | 0.75 | 500 |
| 5,000 | 1,000 | 8 | DN40 | 600x800xH700 | 400 | 1.5 | 500 |
| 8,000 | 1,200 | 8 | DN40 | 600x1000xH700 | 500 | 2.2 | 500 |
| 10,000 | 1,500 | 10 | DN40 | 700x1000xH700 | 550 | 2.2 | 500 |
| 12,000 | 1,600 | 10 | DN50 | 700x1000xH700 | 600 | 3.75 | 500 |
| 15,000 | 1,800 | 10 | DN50 | 700x1200xH700 | 650 | 3.75 | 500 |
| 20,000 | 2,000 | 10 | DN50 | 700x1200xH700 | 750 | 5.5 | 500 |
| 25,000 | 2,200 | 10 | DN50 | 700x1200xH700 | 950 | 5.5 | 600 |
| 30,000 | 2,500 | 12 | DN65 | 700x1200xH700 | 1,000 | 5.5 | 600 |
| 35,000 | 2,700 | 12 | DN65 | 1000x700xH700 | 1,100 | 7.5 | 600 |
| 40,000 | 2,900 | 12 | DN65 | 1000x700xH700 | 1,200 | 7.5 | 600 |
| 45,000 | 3,000 | 12 | DN65 | 1000x700xH700 | 1,250 | 7.5 | 600 |
Custom sizes: Up to 215,000 m3/h air volume. Contact our engineers — xicheng023@outlook.com.
Technical Specifications
| Air volume | 50 – 150,000 m3/h (single tower) |
| Material | Virgin PP (standard); HF-grade PP (fluoride-containing fumes); FRP (mixed acid + solvent); SS316L (high-temp) |
| Wall thickness | 8 – 22 mm (per size and material) |
| Structure | Vertical counter-current: inlet plenum – packed bed – spray section – demister – outlet |
| Packing media | PP Pall rings (standard); PP Tellerette rings (high mist load) |
| Spray nozzles | Large-orifice PP spiral nozzles, 6-8 mm minimum passage; anti-clog design |
| Demisting | Two-stage: PP mesh pad + chevron demister; eliminates visible plume |
| Max inlet temp | 60 C standard / 80 C reinforced / 120 C FRP |
| Purification efficiency | HCl over 98%; H2SO4 mist over 95%; HNO3 over 90%; HF over 95%; CrO3 mist over 99% with HEPA stage |
| Design standard | GB/T 13931-2017; CE certified. See US EPA NESHAP and OSHA Cr(VI) Standard. |
Gas Purification Rate
| Gas Name | Formula | Cleaning Agent | Removal Efficiency |
|---|---|---|---|
| Hydrochloric Acid | HCl | H2O | 90-95% |
| NaOH | 95-99% | ||
| Hydrofluoric Acid | HF | H2O | 90-95% |
| NaOH | 95-99% | ||
| Ammonia Gas | NH3 | H2O | 90-95% |
| H2SO4 | over 99% | ||
| Cyanic Acid | HCN | NaOH | 90-98% |
| Sulfur Dioxide | SO2 | NaOH | 95-99% |
| Chlorine | Cl2 | NaOH | 95-99% |
| Hydrogen Sulfide | H2S | NaOH | 95-99% |
| Sulfuric Acid | H2SO4 | H2O | 95-99% |
| Chromic Acid | CrO3 | H2O | 95-99% |
| Sodium Hydroxide | NaOH | H2O | 95-99% |
| Nitric Acid | HNO3 | H2O | 90-99% |
Not sure which configuration fits your gas? Gas Scrubber Selection Guide (Multi-Stage)
Industries Served
| Industry | Acid source |
|---|---|
| Electroplating / metal finishing | HCl, H2SO4, HNO3, chromic acid from plating baths |
| Stainless steel pickling | HNO3 + HF mixed acid |
| Chemical manufacturing | Reactor vents, storage tank breathing |
| Battery manufacturing | H2SO4 mist from formation charging |
| Laboratory buildings | Centralized fume hood exhaust |
| Semiconductor / PCB | Etching, cleaning, stripping exhaust |
| Pharmaceutical | Synthesis off-gas, reactor cleaning exhaust |
How to Order
- You send – Acid types and approximate concentrations, air volume per exhaust source, emission limits, site indoor/outdoor, available footprint
- We evaluate – Material compatibility check against your acid mix. HF or mixed solvents get the right material grade. Chrome mist gets HEPA recommendation.
- We design – Tower size, packing selection, chemical dosing rate, P&ID with pH control loop
- You approve – Technical proposal with performance guarantee for your specific acid mix, material spec sheets, 3D layout, and pricing
- We build – 10-20 days standard. Hydrostatic test, spray pattern verification, pH control bench test before shipment
- We ship – Installation drawings, pH probe calibration instructions, and commissioning checklist included.
Contact our engineers at xicheng023@outlook.com or WhatsApp +86 18927456906 — proposal within 24 hours.
Complete Your System
- Industrial Spray Scrubber Tower – For general acid gas treatment with lower mist load
- Packed Bed Wet Scrubber – Maximum efficiency for tight emission limits
- Chlorine Gas Scrubber – If your facility handles Cl2 alongside acid fumes
- PP Exhaust Duct and Fittings – Corrosion-resistant ductwork
- PP/FRP Centrifugal Fan – Matched to system pressure drop
- Activated Carbon Adsorption Tower – Downstream polishing for solvent-laden exhaust
Global Shipping
We ship worldwide with documented export experience across Southeast Asia, South Asia, Middle East, Africa, Europe, Americas, and Oceania. Sea freight standard; air freight for small units. Export documentation included with every shipment.
FAQ
What is the difference between an acid gas scrubber and an acid fume scrubber?
Acid fumes contain both gas-phase pollutants and liquid-phase mist droplets. A fume scrubber is designed for both phases with packed bed absorption and high-efficiency demisting. A gas-only scrubber may lack the demisting stages needed to eliminate visible plume from mist carryover.
Do I need a separate scrubber for chrome plating?
Yes. Hexavalent chromium (CrO3) mist is regulated separately with much lower emission limits due to its carcinogenicity. Chrome exhaust should be on a dedicated duct run with its own scrubber and HEPA filtration polishing stage.
How do you prevent salt buildup in the packing and nozzles?
Large-orifice spray nozzles (6-8 mm) pass salt crystals without blocking. An automatic fresh-water flush cycle rinses the packing and sump on system shutdown. We recommend quarterly packing inspection and cleaning.
Acid Scrubber Maintenance Guide
Learn More on Our Blog
Design and Engineering
- Acid Scrubber System Design Engineering
- Acid Scrubbers: Corrosion, Tank and Emission Solutions
- Acid Fume Scrubber Types
- Acid Fume Scrubber Systems (HCl, HF)
