Low energy VOC abatement solutions optimise climate change benefits
The UK’s foremost air pollution control specialist, AirProtekt of Cambridge is leading the way to overcome the negative aspects of climate change by offering tailored volatile organic compounds (VOC) abatement engineering solutions that feature low energy consumption performance.
AirProtekt supplies compact, low-maintenance Regenerative Thermal Oxidation systems (RTO) that offer high thermal efficiencies (up to 97 percent) while minimising operating costs. The RTO systems couple efficient destruction of VOCs with economical, reliable operation to comply with emission regulations at the lowest possible cost.
RTOs are effective in controlling VOCs, odours and chemical emissions for a wide variety of industries. The RTO systems are available in economical two-chamber designs and in three-chamber designs for increased VOC removal efficiency. The systems are also capable of treating high volumes of exhaust gases.
AirProtekt’s portfolio of air pollution control equipment is designed to solve problems in managing different types and combinations of VOCs, particulates and acid gas emissions.
A wide range of industrial processes generate VOCs as a consequence of using organic compounds as solvents or reactive chemicals.
In addition to causing localised odour problems VOCs are often implicated in a wide range of environmentally damaging processes, including the generation of low-level ozone and smog that have a significant impact on climate change. For this reason legislation has been introduced in many countries setting very low emission limits for VOCs in process exhaust gases.
AirProtekt’s RTO engineered package typically incorporates a containerised combustion section complete with honeycomb ceramic heat recovery medium, preheater, changeover valves and a control system.
AirProtekt’s RTO solutions are based on the ROXITHERM system manufactured by leading German air pollution company, Lufttechnik Bayreuth GmbH (LTB). The system, which is designed to transform odours, hydrocarbons or solvents to CO2 and H2O, uses a thermal oxidation process supported with regenerative heat recovery technology to maximise energy efficiency. More than 90 percent of the energy required to preheat emission gases is recoverable which keeps energy consumption extremely low.
In addition to standard designs, the ROXITHERM system is available in special design models. The RTO system is designed with stainless steel or with raw gas preheating for corrosive gasses and with a hot gas bypass for high concentrations, while a special construction form can be selected for condensation formation.
AirProtekt’s flexible approach to providing engineering solutions means that the company is capable of combining and tailoring modular equipment to meet exacting air pollution requirements. For example, by coupling a Regenerative Thermal Oxidation (RTO) system with a Selective Catalytic Reduction (SCR) system AirProtekt is able to treat not only VOCs but also remove pollutants such as oxides of nitrogen and hydrogen cyanide.
“The excellent energy efficiency of the RTO system minimises its carbon footprint as well as helping to reduce running costs and improve system reliability,” explained Trevor Lawton, AirProtekt’s managing director. “AirProtekt provides a complete technical advice and support service to clients around the globe. We have supplied air pollution control solutions to multinational organizations across Europe, North America, Asia, the Middle East and Oceania. Our engineering solutions address specific local emission requirements but we are also skilled at helping customers match the specifications of other air pollution control equipment in use at manufacturing sites at their other locations worldwide”.