Chemical Gas Washing Systems
The harmful gases and odors caused by the activities of industrial facilities and enterprises pose a great threat to human and environmental health. It is necessary to develop some systems to protect our environment from these harmful substances. Gas purification systems installed in this direction contribute significantly to ensuring environmental safety. This system prevents the formation of acid rain by purifying the acidic gases from the exhaust before being released into the sky.
Clean Air is a Basis Of a Healthy Life
In the gas treatment system, the working principle of which is to wash the waste gases under raschig rings, the principle of absorption of gases by liquids is applied. The gas aimed to be purified is taken from the environment with the suction fan and forced to go up through the raschig rings. Thanks to the gravity force and the sprinkler system, the water that goes down and the gas that encounters in these rings breaks up and encounters as much surface as possible in the liquid phase. Thus, the gases coming out of the "scrubber" chimney are free of harmful contents. However, the remaining liquid has turned into acid and is highly corrosive. In this case, the pH value of the liquid phase, which is acidic, is increased to be basic or neutral with the dosing system during the cycle. Thus, it is aimed to increase the durability of the system and to decrease the saturation of the liquid phase in the gas absorption process.
Wet Scrubbers are Used to Treat or Clean the Following Lists of Chemicals From a Process Exhaust Air Stream with Ammonia Being the Most Popular:
- Hydrochloric Acid
- Chlorinated Silanes
- Sulfur Oxides
- Nitrogen Oxides
- Hydrogen Sulfide
- Boron Trifluoride
Why Choose a Wet Scrubber?
- Can handle high temperature streams
- Can handle very moist streams
- Smaller space requirements
- Can be retrofitted into current equipment (in some cases)
- Provides cooling of heated gases
- Higher sulfur dioxide removal capabilities than other equipment options
- Lower cost of purchase
- Can remove gases and particulates in a single unit
- Able to neutralize highly corrosive gases and dusts
- No temperature limits with the use of heat reduction options
- Can handle highly flammable dusts, with very little risk of explosion, when properly designed and operated
- Depends on customer demand IoT can be addable
- Several customizable options, based on specific output and applications, often allowing for a reduction in cost
- Eliminates as much or more than 99% of dangerous gases, which meets all EPA requirements for RACT, BACT, and LAER
Features & Options:
- On skid installation. Faster commissioning time
- Vertical configurations
- Efficiencies up to 99.99%
- Capacities of 40 to 75,000+ m3/h
- Cross-flow and counter-flow options
- Custom designed systems
- Options to be retrofitted with current equipment fully automated
- Continuous monitoring with SCADA screen
- Alarm message can be get as an e-mail.
- Easy use by HMI (Human Machine Interface) screen
- In-house designed and manufactured control panels
- Sized system process fans
- Precision pH control
- Portable options and sizes available
Commonly Used in These Industries:
- Asphalt Processing
- Oil & Gas
- Landfills and Biogas
- Textile Processing
- Tar Removal
- Curing Ovens
- Vinyl Manufacturing
- Acid Mist Control
- Fertilizer Manufacturing
- Wastewater Treatment
- Steel Processing
- Food Processing
- Cocoa Processing
- Nuclear Waste Filtration
- Precious Metal Recovery
- Wood Products
ERGIL designs and manufactures pressure vessels up to 900 bar with maximum thickness 220 mm. Our fabrication facility and personnel are certified with ASME U, S, R, NBR, GOST, AD 2000/ISO 3834, EN 1090-1, EN ISO 3834-2, & DNV GL + ABS Marine Welding Class Program and capable of designing and manufacturing as per ASME, EN, GOST & as per end user requirements; such Shell DEP.
Fully Automated Systems
Are you interested to control your surge vessel operations automatically and monitor operations from your control room? System can also be monitored and controlled from our smart App and send SMS or e-mail notifications.
ERGIL provides full automated surge vessel systems that can be integrated into your existing control system. Having an automated system helps you to reduce man power manual help, accident risks and equipment hazards.
There are two types of scrubbing systems, wet and dry. Wet scrubbing system is the process of removing harmful components from the gas by spraying a liquid substance into the gas. This type of scrubbing system is used to control particulate matter smaller than 10 micrometers and organic gases such as sulfur dioxide, chromic acid, hydrogen sulfide, ammonia, chlorides and fluorides. They are also used in the control of volatile organic compounds. When considered in terms of its advantages, the wet scrubbing system is important in that the flammable dry dusts that may accumulate in the gas streams do not pose a problem when using the wet scrubber. However, if the collected product is wet, it may cause problems with water disposal. In addition, the initial costs of this system are relatively low, but maintenance costs can be high.
Dry Scrubbing System
In the dry scrubbing system, it is aimed to get rid of harmful components by adding a solid substance into the gas. This solid substance is usually found in powder form. These chemicals in solid state can undergo different types of reactions depending on the component they are aimed to remove. While some of these chemical materials neutralize harmful pollutants in the flow as a result of the reaction, others cause a component to react and transform into a different substance. This material then falls from the gas stream or gets caught in a particle grid. Considering the advantages of the dry scrubbing system, the situations such as not producing wet sludge, being able to handle the gas flow at higher temperatures and almost no maintenance costs can be listed. However, it is one of the disadvantages of this system that the control efficiency of acid gas is not as high as a wet scrubber and that it cannot remove all kinds of contaminants from the delivered gas.
These two methods work with a similar logic and include a similar system for separating the gaseous substance from its unwanted components. The main difference is the material used in gas filtering.
Design Concept & Material Selection
Gas velocity, filtration length and liquid phase flow rate should be proportional to increase efficiency in scrubber systems. It should be taken care of ensuring that the exhaust fan flow rate is higher than the flow of waste gases and the pressure is higher than the pressure inside the filter. It is important that all components that make up the "Scrubber" unit should have high quality and materials such as polypropylene and polyethylene that are resistant to high chemical effects should be preferred.
Cleaning flue gases and using scrubbers before the smoke leaves the chimney has a very important place in terms of environmental health. The collection of particulate matter and acidic gases in the scrubber significantly reduces the amount of pollutants that can leave the plant and harm the environment. Thus, air quality increases and the risk of health problems for people who may come into contact with pollutants is reduced.
Although using washers has positive effects on the environment and human health, waste products remaining after wet or dry brushing still stay as a hazard factor. Since it is not possible to reuse these by-products due to their chemical content, it is very important to safely dispose of them.
Industries We Serve
ERGIL, as an engineering & fabrication partner with extensive knowledge of sea port terminals, tank farms, refineries, loading and unloading stations, water facilities, chemical process storage facilities as well as with flexible adaptable economical solutions, we can support your specific applications for following industries:
- Oil & Gas
- Chemical & Petrochemical
- Water & Waste Water Treatment
- Mining & Construction
- Marine & Offshore
- Industrial Process
Operating a highly sophisticated equipment requires constant monitoring, however we know that it is not the case for usual daily operations, therefore we manufacture the best products with low operating and maintenance cost.
- We provide spare parts from our stock
- Provide emergency services
- We do yearly maintenance contracts
- Support you for site installation, supervision and commissioning
One of a Kind Fabrication Facility
ERGIL is a leading expert in fabrication of custom process equipment, storage tanks, pressure vessels and heat exchangers with the highest quality standards of design, material, fabrication and installation. We offer in-house custom production including design, fabrication and installation of carbon steel, stainless steel, aluminum and exotic alloys in our 38,000 m² manufacturing facility located at Mersin on the Mediterranean coast of Turkey.
Mersin has the biggest sea ports and major train hup with 800 km distance to Zakho/ Iraq border, 300km to Syria border and 900 km to Istanbul by road. It is Turkey’s gateway to major sea roads. As a modern facility it is equipped with the latest technology, including fully automated welding, rolling, CNC plasma cutting, shot blasting, heating, painting system and lifting machines. We are also capable of handling in-house pressure testing, radiography, and other non-destructive tests.