For all operators of biogas and natural gas plants who want to comply with the formaldehyde and NOx emission limit values using H+H SCR (DeNOx) exhaust gas cleaning Systems and SCR catalysts. *** Active against air pollution, nitrogen oxides and fine dust - that's what we stand for with our H+H SCR (DeNOx) exhaust gas cleaning systems and SCR catalysts for the reduction of NOx emissions. *** Since 2007 H+H Engineering & Service GmbH is a globally active supplier of SCR (DeNOx) exhaust gas cleaning systems and SCR catalysts based in Germany for the following branches: * Industry * Marine * Greenhouses * Service *** Our H+H SCR (DeNOx) Catalyst Systems enable the achievement of nitrogen oxide reduction rates of more than 95 % and are used for: * Stationary combustion engines (diesel, biogas, natural gas, dual fuel and rapeseed oil) * Non-engine combustion processes (biomass, glass furnace, SNCR-SCR combination, industrial boilers) as well as gas turbines * Vessel engines (Cruise, Offshore, Research, Cargo, Fishing and Fish Farming Vessels) * CO2 fertilization for greenhouses *** Our core competences include catalyst design and development of the complete SCR (DeNOx) Catalyst Systems including SCR/oxidation catalyst and SCR housing, urea pump, compressor, dosing unit, PLC, urea nozzle and NOx analyzer. *** At H+H Engineering & Service GmbH personal support does not end with the sale and commissioning of a SCR system. A worldwide network of own service engineers and local partners is available to the customer. By this network long waiting times, high travel costs and language barriers are kept to a minimum. *** Planetary Health ' A world with clean air through ultra low emissions for ALL ' PEOPLE, ANIMALS, CLIMATE and NATURE ' that is what we stand for with our H+H SCR (DeNOx) Catalyst Systems. *** A team of specialists, technology fanatics and team players is waiting for you at our German and also at our international locations. H+H Engineering & Service: * Birkenleite 2, 96242 Sonnefeld, Germany H+H International Partner: * Europe (Denmark, France, Greece, Italy, Netherlands, Norway, Spain, Czech Republic, UK) * America (Chile, Canada, USA) * Asia (China, Hong Kong, Korea, Taiwan, Turkey)