39results about How to "No by-products" patented technology

The invention discloses a novel flue gas denitrification device of a CO waste heat boiler. The unloading compressor unloads and compresses the liquid ammonia transported by trucks; the ammonia storage tank is located below the unloading compressor; The ammonia tank is connected; the ammonia buffer tank is connected to the ammonia evaporator through pipelines; the inlet of the ammonia dilution tank is connected to the ammonia storage tank, the ammonia buffer tank and the ammonia evaporator; the ammonia / air mixer is located under the ammonia buffer tank and connected to Ammonia injection grid; the CO waste heat boiler is connected to the ammonia injection grid through pipes, and the SCR reactor is located above the CO waste heat boiler and communicated with the CO waste heat boiler. In the present invention, SCR and waste heat boiler are combined for the first time for denitrification of FCCU; the SCR catalytic reactor module is directly placed on the upper layer of waste heat boiler, so that the entire SCR is compactly arranged, the floor area is reduced, and investment is reduced; the denitrification efficiency is high , High technology maturity, good utilization rate of reducing agent, little oxygen in exhaust gas participates in reaction, small heat release, no by-products and no secondary pollution.

The invention relates to a tube bundle TiOF 2 A low-temperature preparation method, which uses tetra-n-butyl titanate as a precursor, and adopts an improved sol-gel method to prepare tubular TiOF under low temperature and normal pressure conditions. 2 , Tubular TiOF 2 The specific surface area is large, and the crystal grains are small, the degradation performance to rhodamine B (RhB) is good, the reflectivity is low in the visible light wavelength range of 380-780nm, and the response is good, and the preparation method of the present invention is simple, the reaction conditions are mild, It has no by-products and has good application prospects.