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VOC Abatement In Partnership with

VOC Abatement

Multi Fan is the sole representative in the UK for Brofind Spa, who specialise in the supply and installation of VOC (volatile organic compound) Abatement and Odour Control Systems to comply with current Environmental legislation. Our systems are based on the following technologies:

  • Direct fired oxidizers or afterburners
  • Regenerative, (RTO), and recuperative thermal oxidisers
  • Catalytic oxidisers
  • Adsorption systems
  • Rotary concentrators, (carbon and zeolite)
  • Wet scrubbers (venturis and packed towers)
  • Biological Systems
  • Secondary heat recovery

All of our systems are purpose designed to provide the optimum, cost effective solution with consideration to both capital and operating costs. Many operate without the use of support fuel, by careful design of primary and secondary heat recovery and/or process optimisation.

Multi Fan and Brofind personnel offer decades of experience in the above fields gained through service in and collaboration with major organisations such as the former UK air treatment specialist Haden Drysys Enviromental.

 

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We offer the following services:

  • Support for existing installations, (Haden or others), in terms of maintenance, relocation, media replacement, system modifications and performance improvements.
  • Process evaluation to establish design parameters
  • Process optimisation
  • Hazop analysis
  • Design, manufacture and installation of capture systems, enclosures and process exhaust ductwork
  • Secondary and tertiary heat recovery systems
  • Commissioning
  • Service and maintenance contracts
  • Emission testing
  • Spare Parts

Thermal Oxidation

Thermal oxidation converts pollutants into secondary products with low environmental impact as a result of the following reaction:

V.o.c. + O2 + activation energyCO2 + H2O + heat

The reaction requires specific temperatures, turbulence and retention time in the combustion chamber; the energy necessary for the reaction can be recovered as heat through special thermal recovery systems (recuperative
thermal oxidation).

Regenerative Thermal Oxidation

Regenerative thermal oxidation allows you to destroy the voc’s with a high degree of thermal efficiency by using ceramic media to accumulate and release heat rapidly. The plant usually comprises three canisters containing ceramic media but, in the cases of high airflow multiple canisters, (5 or more), can be used.

A hot side, high solvent bypasses can be used when high voc concentrations are present to dispose of any excess heat. However, we have also developed specific solutions which are ideal for treating emissions with low voc concentrations such as two canisters with storage or buffer tank system where appropriate.

Catalytic Oxidation

Catalytic oxidation of voc’s at reduced temperature is achieved by means of a catalyst.

The plant can be equipped with a conventional shell and tube type heat exchanger, (recuperative catalytic oxidation), or, with beds of ceramic media, (regenerative catalytic oxidation) to preheat the incoming air. This further reduces energy consumption.

Solvent Recovery

Solvent recovery occurs as the pollutant contained in the gaseous emission is transferred to an adsorbing material such as activated carbon, (adsorption), and then removed from it by means of a hot fluid (regeneration).

Where solvents are not soluble in water, steam regeneration is actually preferred, because it can be condensed, cooled and separated from the solvent to be recovered more easily. 

In case of water soluble or partially soluble pollutants regeneration occurs using an inert gas (usually nitrogen) which is cooled by condensing the solvent to be recovered.

Plants are equipped with auxiliary systems for:

  • The treatment of condensate;
  • The reduction of steam consumption (economizer);
  • The dehydration of recovered solvent;
  • The distillation of recovered solvents.

Brake pad/linings Company

SYSTEM DESCRIPTION -  VOC Abatement - Brake pad/linings manufacturer. CLIENT'S REQUIREMENTS As part of a major building redevelopment project, a well know manufacturer of brake pads and linings for the automotive and railway industry set about moving and refurbishing all of their manufacturing processes. This included relocating and upgrading many of their existing extraction systems and installing new abatement systems to meet curr ...

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