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铁锌脱硫剂的研究

The Study of TX Type Desulfurizer

【作者】 杨艳

【导师】 童仕唐;

【作者基本信息】 武汉科技大学 , 化学工程, 2002, 硕士

【摘要】 结合氧化铁和氧化锌脱硫剂的制备方法和工艺,以硫容为活性指标,对TX脱硫剂的组成及配方进行了筛选实验,并研究了其脱硫及再生性能。 实验确定了活性组分氧化铁的制备方法:向烧杯中加入825mL1moL/LNaOH溶液,开始搅拌,缓慢加入250mL1moL/LFe(NO33溶液;搅拌10分钟于避光处静止,熟化16小时;经真空过滤,所得滤饼于50℃左右烘干,即得活性氧化铁。 TX脱硫剂的组成为:Fe2O375%,ZnO15%,粘结、造孔剂10%。焙烧成型的最佳温度为350℃。 在原料气浓度为10g/m3,空速3000h-1,温度为常温,含水量15%的条件下,TX脱硫剂的硫容>11%。当空速降低、原料气经水饱和后,硫容还可能得到较大增加,这需要进一步的实验证明。 TX脱硫剂可多次再生,再生三次后的累计硫容达31.89%。

【Abstract】 Combing the preparation methods and technologies of iron oxide desulfurizer and zinc oxide desulfurizer, the components of TX type desulfurizer is determined by screen experiments. The standard of screen is the sulfur absorbability .Also the properties of desulfurization and regeneration are tested.This research defines how to prepare the activated iron oxide. First, join 250mL Fe(NC>3)3 solution into 750mL NaOH solution, meanwhile stirring for 10 minutes. Both the content of solutions is ImoL/L. Second, filtrate the mixture under vacuum after 16 hours, then stove it at 50 癈.The composition of TX type desulfurizer is such as below:Fe2O3 75%, ZnO 15%,the additive 10%.And the optimum temperature of roast is 350℃.Under the test condition of normal temperature, the content of inlet hbS 10mg/m3, water content 15% and the velocity of cross section 3000h~l, the sulfur absorbability of TX type desulfurizer is more than ll%(wt%). If the velocity of cross section is lower and the gas is saturated by water, the sulfur absorbability maybe still be increased greatly. More experimental work need to do to proof this conclusion.The TX type desulfurizer can be regenerated for many times. After regenerated third times ,the total sulfur absorbability comes up to 31.89%.

【关键词】 氧化铁氧化锌脱硫硫化氢再生
【Key words】 iron oxidezinc oxidedesulfurizationhydrogen sulfideregenerate
  • 【分类号】TQ04
  • 【被引频次】4
  • 【下载频次】342
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