JP Wet Scrubber

JP HIGH EFFICIENCY Wet Scrubber System™

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JP Wet Scrubber System Schematics

Why Setup A Wet Scrubber System?

Black smoke emissions into the atmosphere from boiler flue-gas stacks is a common sight in rural Malaysia, where the majority of palm oil mills are located. The main pollutant of concern is the particulate matter present in the stack discharge that gives rise to suspended atmospheric particulate matter at ground level in the surrounding areas of the palm oil mills. This poses serious health concerns among the mill workers and residents who live or work in the neighborhood around the mills.

Thus, the government has enacted the Environment Quality (Clean Air) Regulations, 2014 to enforce the compliance of maximum concentration limit values for selected air pollutants at the flue-gas stack discharge. Emission limits have been established to address a variety of concerns about atmospheric pollution on the human and natural environment. The prescribed maximum emission limit value for total particulate matter concentration is 150 mg/Nm3 and for smoke opacity is shade No. 2 on the Ringlemann Chart for boilers of capacities used at palm oil mills. However, the particle concentration limits in term of the particulate size classification are not specified. Maximum value is also prescribed to limit the concentration of gaseous pollutant of Carbon Monoxide to 1000 mg/Nm3.

A wet scrubbing system is integrated into existing mill boiler systems to collect particulates emitted. Very fine particulates in flue gasses can be scavenged similar to rainfall scavenging of dust particles in the atmosphere. Flue gas particulate content is reduced 90% from current acceptable levels and there is a noticeable reduction in black smoke emission.

System Design and Components

Horizontal cross-flow system incorporated with 2 stages of high efficiency dust particulate arrestor for minimum water consumption.

Nozzles are designed for high velocity, low volume maximum gas-liquid contact.

High efficiency nozzles designed for maximum particulate suppression with minimum back pressure to the boiler.

Nozzles designed to withstand temperature and clogging, minimizing maintenance requirement.

High efficiency stainless steel mist eliminators are placed in strategic positions to arrest water droplets and particles.

Second stage mist eliminator linked to boiler CMS, only activated when particles density are above 100mg / nm3 for further water consumption reduction.

Mist eliminators designed to have minimum back pressure to the boiler.

Filtration system for wet scrubber slurry cleaning, where the solid fly ash is removed by jute bags and the water is discharged into cleaning/ washing tank.

All welded parts are stainless steel 304 for corrosion resistance.

Inspection doors are provided at strategic points for cleaning and maintenance.

Chimney, from base to 20ft height, is coated with high temperature corrosion resistance coating for corrosion protection.

JP Wet Scrubber System Characteristics

Specification	Design
Equipment: JP Wet Scrubber System	Boiler Capacity: 20-60 tons
Concept: High efficiency dust particulate arrestor with minimum water consumption	Flow Rate: 40,000-80,000 ACFM
Pressure Drop: Max 400–600 Pa	Flue Gas Inlet Temperature: 250-300 °c
Power Consumption: 25 kW	Flue Gas Outlet Temperature: 80-110 °c
Water Consumption: 10-15 m3 / hour	Efficiency: 90 %
Evaporation in Chamber: 0.2 m3 / hour	Inlet Dust Concentration: 300-500 mg / nm3
Make Up Water: 0.3 m3 / hour	Recycled Water Usage: 80-90 %
Solid Removal: 1000-2000 kg / day (Fly Ash)	Make Up Water: 10-20 %
Discharge Water: PH 7-8

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JP Wet Scrubber System Schematics

Before and After Comparison

Check out the videos below to see how effective the JP Wet Scrubber System is in terms of carbon emission reduction!

70T Biomass Boiler With JP Wet Scrubber

45T Boiler With JP Wet Scrubber

Concentrated Dust Flow Into The Slurry Pit

Close Up On The Dust Concentration After Installation Of JP Wet Scrubber

Opacity Reading Upon Integration of JP Wet Scrubber System

Graphical Reports Obtained From IOI Bio Energy Mill Indicating Significant Improvement In Boiler Performance

Furnace Readings at Anson Mill Teluk Intan Upon Integration of JP Wet Scrubber into their mill

Significant Reduction in Opacity Readings Achieved

Testimonials

It has been 3 years since JP Wet Scrubber System was installed in our palm oil mill, and we have never seen black smoke emission ever since!

Excellent after sales service, where regular inspections are done to ensure that the wet scrubber system is performing optimally.

A very cost efficient yet effective solution for tackling DOE's environmental laws with regards to Clean Air Act 2014.

JP Wet Scrubber

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