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In this paper, the application of medium and low temperature denitration technology after wet desulfurization of ore sintering flue gas is studied with the pilot test by taking the flue gas after wet desulfurization in an iron and steel plant as the object of study. The 20-hole modified vanadium-based honeycomb-type catalyst is selected, average value of NOx at outlet at 230~240 ℃ is 35 mg/m3, which could meet the requirements of ultra low emissions. After 3 months of stable operations, there is no downtrend for catalyst activity, pressure differential of system is stable and there is no blockage. Compared with the medium and high temperature selective catalytic reduction (SCR) by estimation, the consumption of blast furnace gas could be reduced by about 30%, which verifies its feasibility.
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| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |
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