Environmentally friendly catalytic combustion of gaseous fuel to heat greenhouses

Abstract

Data on the study of thermally stable manganese oxide catalysts for deep oxidation of lean CH4 and propane–butane mixtures in air into CO2 are presented in the paper. New approaches to the synthesis of polyoxide catalysts based on Mn, modified with rare earth elements (La, Ce) and alkaline earth elements (Ba, Sr) when its supporting from nitrate solutions onto the alumina granules stabilized with 2 % Ce were used in the preparation of catalysts. Polyoxide thermally stable (up to 1473 K) high-performance Mn-containing catalyst for deep oxidation of CH4 and propane–butane in gas-air mixture was developed. Prototype of the catalytic heat generator for environmentally friendly burning of methane and propane–butane mixture was created. Experienced tests of the catalytic heat generator for heating of greenhouses were performed and carbon dioxide fertilizing of plants by combustion products of propane–butane mixture was carried out.