Product Overview
Industrial chemical wet scrubber for process exhaust treatment where standard water scrubbing is insufficient. Uses chemical reagents (NaOH, H2SO4, NaOCl, KOH, Na2CO3) to neutralize, oxidize, or absorb target pollutants through controlled chemical reactions — not just physical dissolution. Designed for chemical manufacturing, pharmaceutical synthesis, petrochemical processing, and industrial operations generating reactive or hard-to-treat exhaust streams.
| Application | Chemical process exhaust: acid gases, alkaline fumes, reactive compounds, odorous sulfur/nitrogen species |
| Material | Virgin PP (standard); FRP (solvent-containing exhaust); SS316L (high-temp + aggressive chemistry) |
| Scrubbing reagents | NaOH, H2SO4, NaOCl, KOH, Na2CO3, H2O2 — matched to target pollutant chemistry |
| Efficiency | over 95% for most reactive gases; reagent-specific performance guarantees |
| Air volume | 100 – 150,000 m3/h single tower |
| Lead time | 15-25 days |
| Warranty | 12 months structure; chemical compatibility warranted per spec |
Why Chemical Scrubbing vs Water-Only
Water scrubbing works for highly soluble gases like HCl and NH3 because they dissolve readily. But many industrial process emissions contain gases with low water solubility (H2S, mercaptans, NOx) or compounds that need chemical transformation, not just absorption. A chemical scrubber adds a reagent that reacts with the pollutant — converting it into a harmless, non-volatile compound that stays in the liquid phase:
- Acid gases (HCl, HF, SO2, H2S) + NaOH → NaCl, NaF, Na2SO3, Na2S (dissolved salts removed via blowdown)
- Alkaline gases (NH3, amines) + H2SO4 → (NH4)2SO4 (ammonium sulfate, stays dissolved)
- Oxidizable pollutants (H2S, mercaptans, sulfides) + NaOCl → sulfates, elemental sulfur (oxidized and rendered odorless)
- Formaldehyde, phenols + NaHSO3 or H2O2 → oxidized to harmless organics
Chemical scrubbing achieves removal efficiencies that physical absorption alone cannot — especially for gases with low Henry’s law constants. The reagent is consumed in proportion to the pollutant loading and must be replenished; our automated pH/ORP-controlled dosing systems maintain optimal reagent concentration without manual intervention.
Why Xicheng
16 years, 2600+ systems shipped worldwide. Chemical scrubber design requires understanding both mass transfer and reaction kinetics — get the chemistry wrong and you have a vessel full of expensive liquid that isn’t scrubbing anything. We’ve designed chemical scrubbers for over 40 different gas-reagent combinations:
- Chemistry-first design. Before sizing the tower, we confirm the reaction stoichiometry, kinetics, and byproduct management. NaOH + HCl is fast and straightforward. NaOCl + H2S requires residence time and careful ORP control to avoid chlorine breakthrough. We size the reaction zone — not just the mass transfer zone — for your specific chemistry.
- Automated dosing, not manual top-up. Chemical reagent consumption varies with pollutant load. Our standard control package includes pH and ORP probes with automated metering pumps that adjust reagent feed rate in real time. The system logs chemical consumption so you can track operating cost per ton of pollutant removed.
- Byproduct management planned up front. Chemical reactions produce salts. NaOH + HCl → NaCl (common salt, easy). NaOCl + H2S → Na2SO4 + S (sulfate + elemental sulfur, requires solids separation). We calculate blowdown rates and specify wastewater treatment requirements before you commit — no surprises after commissioning.
Send your gas composition to xicheng023@outlook.com. We’ll confirm the right reagent chemistry and provide a mass balance with the proposal.
Core Advantages
- High Purification Efficiency: Delivers high dust removal and desulfurization efficiency. Effectively removes various industrial waste gases.
- Durable and Premium Material: New PP material offering excellent anti-corrosion and wear-resistant properties.
- Compact Design and Low Consumption: Simple structure, minimal space, low energy consumption.
- Easy Installation and Operation: Floating packing layer, practical, simple to operate.
- Flexible Customization and After-Sales: Personalized sizing, 1-year warranty, overseas support.
Key Specifications
| Model No. | XC-1 |
| Material | New PP (Polypropylene) Material |
| Function | Waste Gas Treatment (Chemical Treatment) |
| Purifying Technology | Chemical absorption + neutralization |
| Automation | Automatic pH/ORP-controlled dosing |
| Service Life | 8-10 Years |
| Color | Beige / Dark Grey |
| 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, PP Pipe, PVC Sheet
- Design Compliance – Systems designed to meet EU Industrial Emissions Directive (2010/75/EU) and US EPA NESHAP
Model Selection Table
Standard model range — all dimensions in millimeters.
| 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. Contact xicheng023@outlook.com.
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% |
How to Order
- You send – Gas composition and concentrations, air volume, emission limits, site conditions
- We analyze chemistry – Determine optimal reagent and stoichiometric requirements, byproduct composition, blowdown rate
- We design – Tower size, packing selection, reagent dosing system, P&ID with chemical feed control
- You approve – Technical proposal with chemical consumption estimate, mass balance, and pricing
- We build – 15-25 days. Chemical compatibility verified; dosing system bench-tested before shipment
- We ship – Installation drawings, chemical handling guidelines, and commissioning procedure included.
Contact xicheng023@outlook.com or WhatsApp +86 18927456906 — proposal within 24 hours.
Complete Your System
- Wet Scrubber Overview – Compare all scrubber types
- Spray Scrubber Tower – For standard acid gas without specific reagent requirements
- Packed Bed Scrubber – Maximum mass transfer for reaction-limited chemistry
- PP Exhaust Duct – Corrosion-resistant ductwork
- PP/FRP Centrifugal Fan – Matched to system pressure drop
Global Shipping
We ship worldwide across Southeast Asia, South Asia, Middle East, Africa, Europe, Americas, and Oceania. Sea freight standard; air freight for small units. Export documentation included.
FAQ
What is the difference between a chemical scrubber and a standard wet scrubber?
A standard wet scrubber relies on water solubility — it works well for highly soluble gases like HCl and NH3. A chemical scrubber adds a reagent that chemically reacts with the pollutant, enabling removal of gases with low water solubility (H2S, mercaptans, NOx) and achieving higher efficiency through chemical conversion rather than physical dissolution alone. Read: Gas Scrubber Selection Guide.
How do I know which reagent to use?
The reagent is determined by the pollutant chemistry. Acid gases need alkaline reagents (NaOH, KOH, Na2CO3). Alkaline gases need acid reagents (H2SO4). Oxidizable pollutants (H2S, sulfides) need oxidizers (NaOCl, H2O2). Send us your gas composition and we’ll specify the right reagent and estimate consumption.
What about the chemical waste produced?
Chemical scrubbing produces dissolved salts in the blowdown stream. The volume and composition depend on your pollutant loading and reagent choice. We calculate blowdown rates and provide wastewater characterization data so you can plan treatment — whether on-site or off-site disposal.
