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XTS-XD Industrial Exhaust Gas Wet Scrubbing System

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XTS-XD Industrial Exhaust Gas Wet Scrubbing System

The XTS-XD Industrial Exhaust Gas Wet Scrubbing System excels in purification efficiency and neutralization/absorption capacity, specializing in complex exhaust gases containing acidic gases, alkaline gases, and soluble pollutants. It is one of the core technologies for synergistic treatment of multiple pollutants.

Technical Advantages

High-Efficiency Gaseous Pollutant Absorption: Achieves efficient chemical absorption of acidic/alkaline gases such as HCl, HF, SO₂, and NH₃ via alkaline solutions (e.g., NaOH), acidic solutions, or dual-alkali processes (e.g., Na₂CO₃/MgO), with removal efficiency generally >90% and up to 98% for some systems.
High Safety: Suitable for flammable and explosive dust environments; water medium effectively suppresses fire and explosion risks.
Compact Structure & Small Footprint: Highly integrated equipment, ideal for space-constrained plant renovations or new projects.
Corrosion-Resistant Design for Long-Term Operation: Made of corrosion-resistant materials such as PP, FRP, and PVC, ensuring a service life of 8–15 years in strong acid/alkali environments.
Stable Operation & Easy Maintenance: No moving parts reduce wear; some systems support fully automatic operation and unattended monitoring.
Energy & Water Conservation: Optimized spray system design maintains liquid-gas ratio at 2–3 L/m³, reducing water and energy consumption; operating costs reduced by approximately 40% compared to traditional processes.

Industry Applications

Industry	Application Scenarios	Main Treated Pollutants (Focus on Neutralization & Absorption)
Chemical / Pharmaceutical	Reactor exhaust, distillation tail gas, acid hydrolysis processes	Acid mists such as HCl, H₂SO₄, and HF, neutralized and converted into salts via alkaline solution spraying
Metallurgy / Electroplating	Pickling lines, electroplating tank exhaust, metal smelting flue gas	Acidic gases (Cl₂, NOₓ) and metal vapors, removed through a combination of water washing and chemical absorption
Coal-Fired Power Plants / Boilers	Post-wet desulfurization flue gas purification	Residual SO₂, sulfuric acid mist, and fine particulate matter; double-alkali process is adopted to improve absorption efficiency
Semiconductor / Photovoltaic	Tail gas from etching, PECVD, and diffusion processes	Corrosive gases such as HF, HCl, and NH₃, safely discharged through multi-stage scrubbing
Food Processing / Fermentation	Fermenter exhaust, sterilization steam	Organic acid mist and ammonia, gently absorbed using water or weak alkaline solutions
Waste Incineration / Hazardous Waste Treatment	Incinerator tail gas purification	Acidic gases such as HCl, SO₂, and HF; this is a key part of the "semi-dry + wet" combined process

Ideal for scenarios requiring simultaneous removal of particulate matter and acidic/alkaline gases, such as chemical plants, electroplating workshops, and waste incineration plants.

Process Principle

The XTS-XD Wet Scrubbing System achieves synergistic physical capture and chemical reaction through sufficient gas-liquid contact:

1. Pre-Treatment & Cooling: High-temperature exhaust gas enters the cooling section first, with water spray reducing temperature to 40–60°C to prevent equipment thermal damage and improve gas solubility.

2. Gas-Liquid Contact & Dispersion: Dust-laden/polluted gas enters the scrubber and fully contacts spray water or other scrubbing liquids (e.g., alkaline solutions). Nozzle atomization or cyclone action forms fine droplets to increase specific surface area.

3. Spray Absorption & Neutralization Reaction: Acidic exhaust gases (e.g., SO₂, HCl) enter packed towers or cyclone plate towers and fully contact counter-current alkaline scrubbing liquid (e.g., NaOH solution);
Typical neutralization reactions occur:
SO₂ + 2NaOH → Na₂SO₃ + H₂O
HCl + NaOH → NaCl + H₂O

Generated salts dissolve in wastewater, which is precipitated or recycled.

4. Multi-Stage Purification for Enhanced Efficiency: Adopts "1st-stage water washing + 2nd-stage alkaline washing + 3rd-stage mist elimination" combined process to progressively improve purification accuracy and ensure emission compliance.

5. Gas-Liquid Separation & Emission Control: Purified gas passes through packed or fiber mesh mist eliminators to remove entrained droplets and avoid "white smoke"; wastewater enters a circulation tank for precipitation before reuse or discharge to the wastewater treatment system.

Technical Parameters

Equipment Type	Structural Features	Gas-Liquid Contact Method	Purification Mechanism	Advantages	Disadvantages	Application Scenarios
Horizontal Wet Scrubber	Horizontal layout, rectangular/cylindrical tower, inlet/outlet on the same side	Exhaust gas passes horizontally through packing layer; scrubbing liquid sprays downward in counter-current/cross-flow	Packing increases specific surface area for enhanced mass transfer; physical absorption + chemical neutralization via spraying	Small footprint, low plant height requirement, low pressure loss, easy multi-stage treatment	Slightly lower efficiency than vertical towers, prone to gas flow short-circuiting	Electronics, electroplating, chemical industries with space constraints and acid/alkali exhaust treatment needs
Vertical Packed Absorption Tower	Vertical structure, upright tower with random/structured packing	Gas enters from bottom, liquid evenly sprayed from top distributor in counter-current contact	High specific surface area packing forms liquid film for enhanced gas-liquid mass transfer, suitable for continuous absorption	High mass transfer efficiency, stable operation, suitable for high airflow systems	Larger footprint, high installation height, regular packing cleaning required to prevent clogging	Chemical, pharmaceutical, environmental engineering for absorbing soluble gases (SO₂, NH₃, HCl)
Cyclone Plate Scrubber	Multi-layer cyclone plates inside tower, windmill-shaped blades guide upward gas rotation	Dust/polluted gas enters tangentially, rotates at high speed under cyclone plates, fully contacts atomized spray liquid	Centrifugal force throws droplets to tower wall for enhanced contact; smoke elimination, desulfurization, and dust removal integration	High throughput, low pressure drop, wide operating flexibility, anti-clogging, desulfurization efficiency 85%-92%	Poor adaptability to highly viscous particulate matter, scaling over long-term operation	Desulfurization and dust removal in high-temperature and high-dust environments (boiler flue gas, furnaces, die-casting machines)
Empty Tower Spray Scrubber	No packing/trays, only nozzle system, simplest structure	Gas directly passes through spray zone, collides with atomized droplets	Inertial collision, dissolution, and neutralization between droplets and pollutants	Simple structure, ultra-low resistance, easy maintenance, no clogging risk	Short contact time, low purification efficiency, only for low-concentration pollutants	Pre-treatment only

Selection Recommendations

Space height limited: Prioritize Horizontal Wet Scrubber
High removal efficiency & stable operation required: Recommend Vertical Packed Absorption Tower
Large airflow & sulfur-containing flue gas treatment: Cyclone Plate Scrubber is energy-efficient
Preliminary purification or cooling only: Empty Tower Spray Scrubber as economical pre-treatment

XTS-XD Industrial Exhaust Gas Wet Scrubbing System

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