H4-KH-14B Check whether the actual ratio i is suitable see Helical gear Reduction Boxes H4

Flender/Flender Gear Units/Helical gear Reduction Boxes H4

interactions with other gas components which could occur in real gases - In the tests of the various impregnated activated charcoals, the D5 /4 CNOx impregnated activated charcoal proved to be the most suitable catalyst, both in the laboratory programme and in use downstream of spark-ignition gas engine and gas diesel engine NO conversion rates of between 8 and 9% were achieved in long-term laboratory trial lasting 2,4 hours, with NH3 losses of less than 5 mg/m3 and without deactivation being observed 1 - As regards the nature of NH3 feed, the ilot plant programme revealed an increase in the NO, conversion rate from continuous acPdition of NH3, via intermediate addition controlled by the NO, input value, up to intermittent addition controlled by the NO, output valye. NO, conversion rates greater than 9% were achieved in this context, with the retention time amounting to 1 seconds and the mean exhaust gas temperatures fluctuating around 1ooc. - D5/4 CNO, catalyst achieved the same NO, conversion rates for aqueous feed and gaseous feed. - In the pilot plant trials, the NH3 loss could be limited very consistently to below 1 vpm as function of NH3 addition controlled by the NO, input value. In the case of NH3 addition controlled by the NO, output value, however, large differences in NH3 losses occurred .downstream of the reactor. - Upstream SO2 and soot separation is necessaryforthecontinuousfixed-bed operation ofan NO, catalyst in the event of sulphur dioxide and soot being present in the engine exhaust gas. An activated charcoal filter connected upstream of the NO, reactor can be regenerated by means of thermal desorption as regards 5, and by means of sieving in the case of the separated soot components. - In the trials downstream of gas diesel engine in blocktype thermal power station, the many starts and stops did not cause decrease in the activity of the catalyst materials used. - As result of the constant temperature maintaine