Glass Factories. Solutions for Flue Gas Cleaning

Glassmaking uses raw materials such as sand, sodium carbonate, calcium carbonate, and additives such as sodium sulfate. These components are blended and melted at temperatures above 1200° Celsius, followed by cooling to achieve the typical translucent structure of glass. The melting process produces acidic emissions such as sulfur oxides (SOx) and hydrofluoric acid (HF), originating both from the sulfur present in the fuel and from the decomposition of refining compounds within the melting furnace. Consequently, it is essential to neutralize these acidic compounds in the flue gases before they are released into the atmosphere. The most common purification systems involve the dry introduction of alkaline chemical powders directly into the flue gas stream, where a chemical reaction occurs that neutralizes the acids and produces salts as a residue.

Metaltek Solutions

Metaltek offers a range of adaptable and tailor-made options for purifying fumes emitted by glass factory furnaces. Able to design specific solutions, the company adapts perfectly to the individual needs of each glassmaking facility, offering ideal solutions suited to each work environment.

Solution with Technical Grade Sodium Bicarbonate Solution with Pre Ground SOLVAir® Sodium Bicarbonate Solution with Hydrated Lime or Sorbacal®

Metaltek Services: Assistance, Maintenance and Monitoring

Assistance, Maintenance and Monitoring Services on existing systems

Metaltek is the ideal partner for Glass Factories, thanks to over 30 years of experience and a cutting-edge engineering approach.

We offer turnkey solutions 100% Made in Italy, designed with high-quality components to ensure reliable performance and continuous 24/7 operation (8,400 hours/year). We keep a large spare parts warehouse to ensure rapid interventions worldwide, even muldi-brand (within 24/36/48 hours) with specialized teams, including those for work at heights and in confined spaces. Our team of highly qualified consultants and designers designs custom systems to optimize operating costs and increase efficiency, while our exclusive Tek Lab service provides detailed analyses to improve purification processes.

Tek Lab by Metaltek: the exclusive fixed and mobile analysis laboratory for monitoring, testing and innovation

Tek Lab: Analysis and Innovation Laboratory

Tek Lab by Metaltek is a leader in the analysis of industrial fumes and residues. A cutting-edge technology to detect and address issues with overdosing or problems related to excess acids, dioxins, or other harmful compounds. It offers both on-premises analysis and on-site monitoring and analysis with its mobile laboratory.

Quality Products and Exclusive Metaltek Services: a benchmark for flue gas cleaning for Glass Factories

Learn more about our solutions and discover how we can support your business with concrete results.

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Glass Factory Pollutant Abatement

FAQ

How is the disposal of fumes produced by Glass Factories handled?

For the production of glass, raw materials such as sand, sodium carbonate and calcium, and some additives like sodium sulfate are used. These ingredients are mixed and melted at temperatures above 1200°C (2192°F), and then cooled to create the classic glassy structure. During the melting process, acidic emissions of sulfur oxides (SOx) and hydrofluoric acid (Hf) are generated, originating both from the sulfur content of the fuel and the decomposition of the refining agents in the melting furnace. To stay within legal limits for emissions of pollutants and toxic substances and to reduce the environmental impact of the glassworks, it is necessary to neutralize the acidic substances in the exhaust fumes before they are released into the environment. These filtration systems inject dry powders of basic chemical substances directly into the flue, neutralizing the acids with a chemical reaction that produces salts as a byproduct. Moreover, when sodium bicarbonate is used to neutralize sulfur oxides, the solid residue obtained is sodium sulfate and sodium carbonate, salts that can be reused as raw material for glass production, saving resources and reducing waste.

What pollutants does the melting process used by Glass Factories generate?

In the glass melting process, acidic emissions such as sulfur oxides (SOx) and hydrofluoric acid (HF) are produced, arising both from the sulfur present in the fuel and from the decomposition of the refining agents used in the melting furnace. These pollutants are carried in the flue gas of the ovens and must be filtered as they are highly harmful to the environment.

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