<prompt> Translate the following text to EnglishKwa hiyo, sindano ya sorbent, na uwezekano wa maji kwa ajili ya humidification, mara nyingi itakuwa kufanyika chini ya preheater hewa na juu ya precipitator electrostatic, ambapo joto gesi ni kawaida katika mbalimbali ya 280-300 eF.  <response>: Therefore, injection of sorbent, and possibly water for humidification, will most often be performed downstream of the air preheater and upstream of the electrostatic precipitator, where the gas temperature is typically in the range of 280-300 eF. 