초록 ▼

Process for removing sulfur dioxide and nitrogen oxides from gaseous mixtures which comprises contacting such mixtures, in the presence of a reducing agent comprising carbon monoxide, hydrogen, or mixtures thereof, with a solid reagent comprising calcium oxide, magnesium oxide, or mixtures thereof a

Process for removing sulfur dioxide and nitrogen oxides from gaseous mixtures which comprises contacting such mixtures, in the presence of a reducing agent comprising carbon monoxide, hydrogen, or mixtures thereof, with a solid reagent comprising calcium oxide, magnesium oxide, or mixtures thereof at temperatures in excess of about 700°C.

대표청구항 ▼

A process for removing sulfur dioxide and nitrogen oxides from stack gases containing the same which process comprises contacting such gases at a convenient space velocity and at temperatures in excess of about 700°C with a solid reagent consisting essentially of calcium oxide, magnesium oxide or co

A process for removing sulfur dioxide and nitrogen oxides from stack gases containing the same which process comprises contacting such gases at a convenient space velocity and at temperatures in excess of about 700°C with a solid reagent consisting essentially of calcium oxide, magnesium oxide or compounds convertible thereto under the reaction conditions, or mixtures thereof in the presence of an excess of reducing gas comprising carbon monoxide, hydrogen, or mixtures thereof, with the solid reagent, by replenishing as necessary, being maintained in sufficient stoichiometric excess of the sulfur dioxide and other oxidants in the gases being treated to induce the formation of the corresponding sulfide of the alkaline earth metal component of the solid reagent.