Abstract: Provided is a refining method of a waste plastic pyrolysis oil including: (S1) mixing a waste plastic pyrolysis oil and a sulfur source to prepare a mixed oil fraction; (S2) hydrotreating the mixed oil fraction with a reaction gas including a hydrogen gas (H2) in the presence of a molybdenum-based hydrogenation catalyst; and (S3) removing by-products of the hydrotreating from the product of (S2) to obtain a refined oil.

Abstract: Provided is waste plastic pyrolysis oil refining equipment including: a separation unit which separates a waste plastic pyrolysis oil into a light oil and a heavy oil; a first reactor which hydrotreats the light oil introduced from the separation unit at a temperature of higher than 300° C. and lower than 400° C. in the presence of a hydrotreating catalyst; a separator which removes hydrogen chloride from a reaction product introduced from the first reactor; and a second reactor which removes impurities from the heavy oil introduced from the separation unit at a temperature of higher than 50° C. and lower than 300° C.

Abstract: Provided is waste plastic pyrolysis oil refining equipment including: a guard bed 100 where a waste plastic pyrolysis oil and a hydrogen gas are introduced and hydrotreated at a first temperature in the presence of a hydrotreating catalyst to produce a fluid from which chlorine has been removed; a main bed 200 where the fluid and the hydrogen gas are introduced from the guard bed 100 and hydrotreated at a second temperature higher than the first temperature in the presence of a hydrotreating catalyst to produce a refined oil from which impurities have been removed; and a recovery tank 300 where the refined oil from which impurities have been removed is recovered from the main bed 200, wherein a temperature before the refined oil is recovered to the recovery tank 300 is maintained at 290° C. or higher and lower than 350° C.

Abstract: The present invention relates to conversion of exhaust gas containing nitrogen oxide (NOx) such as NO, NO2 and N2O into N2 and H2O through catalytic reaction with injection of a reducing agent such as ammonia and urea. A fabrication method of zeolite honeycomb type catalyst for reducing nitrogen oxide of the present invention includes: (a) obtaining an inorganic binder by mixing and uniformly peptizing pseudo-boehmite, distilled water and a pH adjuster; (b) obtaining a paste by mixing and kneading zeolite, the inorganic binder, an organic binder and distilled water; (c) extruding the paste into an extrudate having a through pore of a regular structure; and (d) drying and heat treating the extrudate.

Abstract: The present invention relates to conversion of exhaust gas containing nitrogen oxide (NOx) such as NO, NO2 and N2O into N2 and H2O through catalytic reaction with injection of a reducing agent such as ammonia and urea. A fabrication method of zeolite honeycomb type catalyst for reducing nitrogen oxide of the present invention includes: (a) obtaining an inorganic binder by mixing and uniformly peptizing pseudo-boehmite, distilled water and a pH adjuster; (b) obtaining a paste by mixing and kneading zeolite, the inorganic binder, an organic binder and distilled water; (c) extruding the paste into an extrudate having a through pore of a regular structure; and (d) drying and heat treating the extrudate.