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基于小样性能和柴油机台架试验的Urea-SCR钒基催化剂老化研究
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作者 乔虹 王彬 《内燃机与动力装置》 2016年第5期1-4,共4页
本文分别应用小样评价试验和柴油机台架试验对国产的矾基催化剂和进口的钒基催化剂分别进行了水热老化和硫老化性能研究,并进行了对比分析。小样评价性能试验结果表明:两种矾基催化剂都有较强的抗硫老化能力;但对水热老化都非常敏感,国... 本文分别应用小样评价试验和柴油机台架试验对国产的矾基催化剂和进口的钒基催化剂分别进行了水热老化和硫老化性能研究,并进行了对比分析。小样评价性能试验结果表明:两种矾基催化剂都有较强的抗硫老化能力;但对水热老化都非常敏感,国产矾基催化剂的NOx转化率的高效温度窗口降低了18%,进口矾基催化剂的NOx转化率的高效窗口降低了15%。柴油机台架试验结果表明:快速老化对矾基催化剂的活性有较大的影响,进口催化剂的劣化率低于国产钒基催化剂,但经过台架快速老化考核后的两种催化剂都能满足国IV排放标准的使用要求。 展开更多
关键词 选择性催化还原 钒基催化剂 水热老化试验 硫老化试验
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Study on Influence of Gasoline Sulfur Content on Performance of Vehicle Exhaust Catalytic Converter
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作者 Guo Xin Zheng Shujia 《China Petroleum Processing & Petrochemical Technology》 SCIE CAS 2012年第2期25-30,共6页
This paper has investigated the influence of gasoline sulfur content on durability of catalytic converter for vehicle exhaust gas. Two gasoline samples with different sulfur contents (equating to 150 μg/g and 50 μg/... This paper has investigated the influence of gasoline sulfur content on durability of catalytic converter for vehicle exhaust gas. Two gasoline samples with different sulfur contents (equating to 150 μg/g and 50 μg/g of sulfur, respectively) were used to examine the durability and performance of catalytic converter on the bench test. The test results have revealed that in comparison to the influence of sulfur on ageing of catalytic converter the thermal ageing had a more remarkable impact on the performance of catalytic converter, and the performance of catalytic converter could be restored by high-temperature desulfurization process after ageing by the high-sulfur gasoline sample (containing 150 μg/g of sulfur) . 展开更多
关键词 SULFUR ageing catalytic converter vehicle exhaust gas
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