Emissions Compliance by Thermal Oxidation
Thermal Oxidation Thermal Oxidation is accepted as the Best Available Control Technology to deal with VOC abatement, and odour control issues in process air streams. It is reliable, proven technology that needs minimal manpower and maintenance once it is correctly specified, designed and installed.
Regenerative Thermal Oxidation
Where VOC loadings are relatively low and there is no constant additional demand for heat energy on site, a regenerative thermal oxidiser is generally specified. By correct specification, careful design, and latest generation ceramic media, these units can achieve very high thermal efficiencies. If contaminant loadings are over a certain level and the unit is designed appropriately, the need for a support fuel is reduced up to the point that they can run auto thermally.
We have direct experience of air deliveries between 2,000 Nm3/h right up to 330,000 Nm3/h and have specific technology to deal with very low concentrations of VOCs.
Recuperative Thermal Oxidation
When VOC or other contaminant loadings are high and there is a constant demand for heat energy on site, waste gases can be oxidised in a furnace and the resultant heat energy recovered to water, steam or thermal oil, in a heat recovery boiler. This is a very effective method of treating process odours as well as other potential pollutants.
Careful study of the airflows and temperatures usually enables the process air to be pre-heated by the outgoing exhaust, saving support fuel and increasing the thermal efficiency. We have built units catering for air deliveries between 500 Nm3/h and 64,000 Nm3/h
Especially suitable for the food or feed industry is the Combi unit, a small neat installation that combines a recuperative oxidiser and thermal fluid heat recovery system in one unit. These are designed for air deliveries from 1000 to 5000 Nm3/h.
Where air deliveries are high and the VOC concentration is low, we recommend roto-concentration techniques to boost the volume of the latter by up to 15:1, and is some circumstances 20:1 is possible. We have commissioned several of these units as part of a larger thermal oxidation project. This reduces the overall capital cost of the project and the ongoing running costs.
Diesel Engine Exhaust Gas Treatment
Where Energy from Waste projects involve the installation of a stationary diesel engine driving an electrical generating set, we have considerable experience of small thermal oxidisers needed to clean up the diesel exhausts.
The company has more than 150 years heritage in providing efficient boilers and thermal fluid heaters, and the associated peripherals, to meet customers' needs and provide solutions to heating problems.
After Sales Service
With over 50% of the personnel dedicated to maintaining our plants, and a well stocked stores for spare parts in UK and around the world, we can easily maintain our equipment to give decades of trouble-free service.
Engineering Know How and Experience
With over 150 years of thermal engineering experience, and over 300 thermal oxidisers constructed, Babcock Wanson is in an unrivalled position to provide turnkey solutions to almost every problem in the sectors of compliance with the latest Environmental Permitting regulations, including such areas as VOC abatement, odour control, stationary diesel engine emissions, and energy recovery. We have 2 factories involved with design and manufacture plus a research facility, all in house. Erection and commissioning is under the direction of our own engineers. A large range of spare parts is carried in UK for rapid despatch, and Babcock Wanson skilled service engineers are available throughout the world to service our plants.