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我们常见的烟囱有砖的、钢的和钢筋混凝土的,多半是单筒式的。乙烯装置“简中简”式烟囱在国内还是首次采用。 1.概述脱硫烟囱是乙烯装置中烟气脱硫装置的一个组成部分。为了处理超高压蒸汽锅炉和蒸汽过热炉(它们所用的燃料为裂解燃料油和重质燃料油,含有一定的硫)排出的烟气,以减少硫对环境的污染,乙烯装置设有烟气脱硫装置。由锅炉和蒸汽过热炉来的烟气,经氨水吸收二氧化硫后,通过回收工序进一步加工成结晶硫铵(化学肥料),净化
Our common chimney brick, steel and reinforced concrete, mostly single-cylinder. Ethylene plant “Jane in simple” type chimney is the first time in China. 1. Overview Desulfurization chimneys are an integral part of flue gas desulfurization in ethylene plants. In order to deal with the exhaust fumes emitted by superheated steam boilers and steam superheating furnaces whose fuels are cracked fuel oil and heavy fuel oil to reduce the environmental pollution caused by sulfur, the ethylene plant is provided with flue gas desulfurization Device. The flue gas from the boiler and steam overheating furnace, after absorption of sulfur dioxide by ammonia, further processed into crystalline ammonium sulfate (chemical fertilizer) through the recovery process, purification