Industrial gas filtration
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Innovative solutions for industrial gas filtration

Applications – complex requirements Gas filters are used in a variety of industrial processes such as: • Exploration, transportation, storage and processing of oil and gas, • Production of chemical and petrochemical products, • Preparation of industrial raw materials, • Operation of fixed and mobile installations for power generation. With courtesy of MAN Diesel & Turbo Gas filters are often combined with compressors or turbines, but also with reactors and fixed or mobile large engines. The mediums to be filtered are normally seal gas, fuel gas, heating and cooling gas, injection gas as...

There are high technical and safety requirements for gas filtration: • Required degree of purity for the filtered gas, • Specific properties of gases, which are explosive, aggressive, toxic, polluting, • Special conditions of processes, such as extreme temperatures and pressures, • Extreme environmental and climatic conditions, • Exotic material specifications. All listed aspects require the highest precision and maximum safety, which can be identified as a common denominator in the gas filtration industry. BOLLFILTER for oil and gas fulfil these comprehensively. Pictures from left to...

The perfect product for every requirement All BOLL gas filters are characterised by the highest precision, reliability and safety. The special feature of the BOLLFILTER product program for gas filtration is that it covers all applications. In addition to standard filters, the product range also includes filters that are manufactured according to customers’ specifications. The unique system flexibility and wide range of variants allow a precise customisation of the filter solution to the individual application requirements. Simplex filters BOLLFILTER Simplex Type BFB-P/-C Nominal diameters...

For each type of gas, volume of gas, required degree of purity, type of plant and all operating conditions, the BOLLFILTER portfolio offers a perfect gas filter. Available options include: • Simplex or Duplex filter • Forged, welded or cast construction • Different housing sizes and connection nominal diameters • Particle or coalescer elements • Cyclone pre-separation/knock-out • Demister pre-separation • Additional reservoir sizes according to the application • Liquid level indicator • Differential pressure indicator/transmitter Duplex filters BOLLFILTER Duplex Type BFD-C BOLLFILTER Duplex...

Gas filtration is a very complex task. Depending on the contamination of the untreated gas and the nature of the entrained particles, different methods are applied. This can involve filtration of solid particles, liquids and a combination of both. The quality of the filtration result is dependent on the filter medium used, type of filter element and the pre-treatment if applicable. During the filtration of gases, there separation mechanisms: surface area field of gas filtration the depth filtrati In depth filtration, three types of phy the particle: inertia, interception and solids as well...

The particle filter element are basically two different types of a filtration and depth filtration. In the ion is almost exclusively used. ysical mechanisms have an effect on diffusion. The particle can consist of During the filtration of solid particles from gas, the particles flow into the filter fabric. Due to the separation mechanism, the particles get stuck as soon as they touch the fibres of the filter element fabric. Depending on the consistency­ of the filter fabric and the size of the particles, they penetrate into the depth of the fabric. The result is that the pores become...

The coalescer element manufactured by BOLL & KIRCH contains two stages. The first stage filters the solid particles out of the gas flow and the second stage separates the liquid particles. Normally, the liquid particles penetrate deeper into the fabric. When the liquid particles are deposited, they amalgamate­and form larger drops that are separated by gravity. The demister is used as a pre-separato ed to be highly contaminated. Solid p fluid up to a certain amount. Therefore and a demister should only be used in a d the demister is less vulnerable to change or volume flow. Inner setup...

or when the gas in liquid form is expectparticles can only be separated from a e, an interlock of the canals is possible duplex filter. In opposite to the cyclone, es by operation conditions like pressure The cyclone, like the demister, is used as pre-separator when the gas is expected to be highly contaminated by liquid and solid particles. The cyclone separates high solids content as well as high moisture content. The separation efficiency is based on centrifugal force, which carries the particles to the outer wall of the cyclone. Inlet Eintritt/Inlet Demister inside Drain...

BOLL & KIRCH: The expert for gas filtration BOLL & KIRCH research centre including test laboratory For more than 60 years, we are focusing on the filtration of liquids and gases. Today, the brand BOLLFILTER is a guarantee for high performance, precise function, best material, best processing, reliability and freedom from maintenance. This is based on a quality management system, which is designed according to inter­ national standards and certified according to ISO 9001 and ISO 14001. As part of Research and Development as well as in the course of regular production control, product tests...

Individual filtration systems for special requirements Gas filtration on an industrial scale demands highly sophisticated filter systems for most different tasks, plant and operating conditions. In addition to adapting our core group of standard products, BOLL also strategises with our customers to develop specialised technically optimal solutions for individual applications. Within Customised Engineering, we accompany our customers through all project sub-processes from the definition of the requirements to the realisation and the commissioning of the systems. All BOLLFILTER models,...