AIR PREHEATING AND NOX REDUCTION INTEGRATED REACTOR AND REACTION METHOD

摘要

An air preheating and denitration integrated reactor and reaction method. The reactor includes a rotary catalyst body, housing arranged outside the rotary catalyst body, and gas inlet and outlet channels on upper and lower surfaces of the housing; the gas inlet and outlet channel is in divided three, namely flue gas, reductant, and air inlet and outlet channels, the rotary catalyst body is cylindrical and includes a central shaft rotor and multiple circular catalyst layers rotate around the central shaft rotor, each circular catalyst layer is divided into air, flue gas and reductant zones by a radial sealing plate and axial sealing plate. In each circular catalyst layer, a catalyst in the reactor alternately circulates in flue gas, reductant and air zones. The catalyst performs heating-reheating-cooling process on catalyst layers along with the reactor rotation, different temperatures and reaction atmospheres in zones conductive of air preheating and denitration.

主权项

1. An air preheating and denitration integrated reactor, comprising a rotary catalyst body structure and a housing arranged outside the rotary catalyst body structure, as well as a gas inlet and outlet channel on the upper surface and the lower surface of the housing, wherein the gas inlet and outlet channel is divided into three parts, namely a flue gas inlet and outlet channel, a reductant inlet and outlet channel and an air inlet and outlet channel, the rotary catalyst body structure is cylindrical and comprises a central shaft rotor and multiple circular catalyst layers which can rotate around the central shaft rotor, each circular catalyst layer is divided into an air zone, a flue gas zone and a reductant zone by a radial sealing plate and an axial sealing plate, the air zone of each circular catalyst layer is longitudinally through and has the size corresponding to the air inlet and outlet channel, the flue gas zone of each circular catalyst layer is longitudinally through and has the size corresponding to the flue gas inlet and outlet channel, the reductant zone of each circular catalyst layer is longitudinally through and has the size corresponding to the reductant inlet and outlet channel, the gas inlet and outlet channel is fixed on the housing, and the housing does not rotate along with the central shaft rotor.