Preparation of a new high-performance calcium-based desulfurizer using a steam jet mill.

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ID: 78277
2019
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Abstract
Dry flue gas desulfurization is an increasingly attractive technique in SO emission control. However, the low efficiency in dry desulphurization is the bottleneck of this technology. To find a high-performance desulfurizer is an urgent task. This research utilized a steam jet mill digestion to prepare a desulfurizer at steam temperature of 220 ℃ and pressure of 0.45 MPa, and compared this product with the conventional digestion desulfurizer. Our results show that the digestion in steam jet mill can transform all the calcium oxide into calcium hydroxide. The calcium hydroxide had good fluidity and with honeycomb morphological characteristics. The experiments of dry flue gas desulfurization demonstrated that under the relative humidity of 15, 30 and 45%, the total dead times were 340, 640 and 720 min, the working time for keeping a 100% desulfurization efficiency were 120, 420 and 580 min, and the total sulfur fixation were 124.05, 274.58 and 332.09 mg. Compared with the desulfurizer by conventional dry digestion, the desulfurizer prepared in this research had a significantly superior performance. This experiment provides a new method for high-performance desulfurizer via quicklime digestion, which is an important step in pushing forward the application of dry flue gas desulfurization.
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juan2019preparationjournal Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Juan, Lǖ;Yu, Fu;Lihua, Huang;Deliang, Teng;Haiyan, Chen;Belzile, Nelson;Yuwei, Chen;
Journal Journal of hazardous materials
Year 2019
DOI
S0304-3894(19)31868-0
URL
Keywords
relative humidity desulfurization efficiency dry flue gas desulfurization quicklime digestion steam jet mill

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