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发明公开
CN106853317A 酸性水汽提氨气的脱硫净化工艺 失效 - 权利终止

酸性水汽提氨气的脱硫净化工艺
摘要：
本发明提供一种酸性水汽提氨气的脱硫净化工艺，主要设备沿氨气流向包括加热器、H2S直接氧化反应器、两个并联或可改变先后串联次序的冷凝器，和两个可串并联的催化氧化吸附脱硫塔；加热器之前设H2S浓度在线分析仪、氧气配入管和混合器，充分混匀后进加热器；H2S直接氧化反应器装填TiO2基硫磺回收催化剂，催化氧化吸附脱硫塔装填由活性炭改性制备的催化氧化吸附脱硫剂；H2S直接氧化反应器入口气温度190～210℃，催化剂空速100‑1000h‑1，床层温度210‑260℃，出口氨气中H2S 200‑500ug/g NH3，SO2≤300 ug/g NH3；催化氧化吸附脱硫塔入口气温度10‑50℃，脱硫剂空速10‑100h‑1，出口氨气中H2S≤3ug/g NH3，SO2≤1ug/g NH3，有机硫≤1ug/g NH3。
摘要（英）：

The invention provides a desulfurization purification process of acidic water stripped ammonia gas. The main equipment include, along the ammonia gas flow direction, a heater, an H2S direct oxidation reactor, two parallel condensers or two condensers changeable in order, and two catalytic oxidation adsorption desulfurization towers capable of being connected in series and parallel. An H2S concentration on-line analyzer, an oxygen introduction pipe and a mixer are disposed in front of the heater. The H2S direct oxidation reactor is filled with a TiO2 based sulfur recovery catalyst, the catalytic oxidation adsorption desulfurization towers are filled with a catalytic oxidation adsorption desulfurizer prepared by modification of activated carbon. For the H2S direct oxidation reactor, the inlet air temperature is 190-210DEG C, the catalyst space velocity is 100-1000h<-1>, the bed temperature is 210-260DEG C, in the outlet ammonia gas, H2S is 200-500 microg/g NH3, and SO2 is smaller than or equal to 300 microg/g NH3. For the catalytic oxidation adsorption desulfurization towers, the inlet air temperature is 10-50DEG C, the desulfurizer space velocity is 10-100h<-1>, and in the outlet ammonia gas, H2S is less than or equal to 3 microg/g NH3, SO2 is less than or equal to 1 microg/g NH3, and organic sulfur is less than or equal to 1 microg/g NH3.

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