Experiment and Mechanism Analysis of Selective Non-Catalytic Reduction with the Compound Reducing Agents in a Lab-scale CFB Reactor

机译：用实验室CFB反应器中复合还原剂的选择性非催化还原的实验与机理分析

获取原文

页面导航

摘要
著录项
相似文献
相关主题

摘要

The conventional SNCR technology with reducing agent ammonia has been utilized in power industry extensively.In this paper,a new denitrification method with the compound reducing agents contain ammonia and reducing gas was discussed.The SNCR experiment with H2 and CH4 as the additives was carried out in a lab-scale CFB reactor which imitated flue gas environment in CFB boilers,meanwhile the mechanism modelling including the reaction of gas additives was adopted to simulate the experimental process.The validations of mechanism modelling and parameter optimizations were discussed by the comparisons of experimental and computational results.The compound reducing agents with H2 and CH4 additives can expand the adaptive temperature window of denitrification reaction and reduce the optimal reaction temperature.Hence the NOx removal efficiency of conventional SNCR can be improved significantly,and the effect of H2 additive is better than that of CH4 additive.The optimal reaction temperature in simulation is about 800°C with the H2 concentration of 300 ppm,while 760°C under the concentration of 900 ppm.The minimal NOx residual concentration is estimated to approach 75 mg/m3 at 800°C by using the H2 compound reducing agent.

机译：具有还原剂氨的传统SnCr技术已经广泛用于电力行业。本文讨论了一种具有化合物还原剂的新的脱氮方法含有氨和还原气体。随着添加剂的同系数和CH 4，SNCR实验在CFB锅炉中模仿烟气环境的实验室标度CFB反应器中，采用包括气体添加剂反应的机制建模来模拟实验过程。通过实验和实验的比较讨论了机制建模和参数优化的验证计算结果。具有H2和CH 4添加剂的化合物还原剂可以扩大脱氮反应的自适应温度窗口，降低最佳反应温度。可以显着提高常规SNCR的NOx去除效率，H2添加剂的效果优于CH4添加剂。最佳反应温度I N模拟约为800℃，H2浓度为300ppm，而760℃的浓度为900ppm。估计最小的NOx残留浓度通过使用H 2化合物还原剂在800℃下接近75mg / m 3 。

著录项

来源
《Annual International Conference on Material Engineering and Application》|2019年|392 p.|共6页
会议地点
作者
Jiancong Dong; Degui Bi; Tuo Zhou;
展开▼
作者单位

展开▼
会议组织
原文格式 PDF
正文语种
中图分类 TB3-532;
关键词

相似文献

外文文献
中文文献
专利

1. NO removal by reducing agents and additives in the selective non-catalytic reduction (SNCR) process [J] . Sang Wook Bae, Seon Ah Roh, Sang Done Kim Chemosphere . 2006,第1期

机译：在选择性非催化还原（SNCR）过程中通过还原剂和添加剂去除NO
2. Experiment and simulation study of the effect of ethanol and compound additives on the urea-based selective non-catalytic reduction process under moderate temperature conditions [J] . Bang Wu, Ge Pu, Jiantai Du Royal Society Open Science . 2018,第10期

机译：中温条件下乙醇和复合添加剂对尿素基选择性非催化还原过程影响的实验与模拟研究
3. Numerical Analysis of Reaction Mechanism of Selective Non-Catalytic NO Reduction using Urea Solution [J] . Takuya Oyashiki, Masaru Takei, Yoshinori Itaya, 化学工学論文集 . 2001,第5期

机译：尿素溶液选择性非催化还原NO反应机理的数值分析
4. Experiment and Mechanism Analysis of Selective Non-Catalytic Reduction with the Compound Reducing Agents in a Lab-scale CFB Reactor [C] . Jiancong Dong, Degui Bi, Tuo Zhou Annual International Conference on Material Engineering and Application . 2019

机译：用实验室CFB反应器中复合还原剂的选择性非催化还原的实验与机理分析
5. CARBOHYDRAZIDE AS A SOLID REDUCING AGENT FOR REACTION GAS CHROMATOGRAPHY (DETERMINATION OF AZO, NITRO AND SULFONATE COMPOUNDS). PART I: REACTIONGAS CHROMATOGRAPHY OF AZO COMPOUNDS BY CARBOHYDRAZIDE REDUCTION AND GAS CHROMATOGRAPHY OF THE RESULTANT COMPOUNDS. PART II: ANALYSIS OF AROMATIC NITRO COMPOUNDS AND AROMATIC SULFONATES BY CARBOHYDRAZIDE REDUCTION AND GAS CHROMATOGRAPHY OF THE RESULTANT COMPOUNDS. [D] . RAHN, PETER CHARLES. 1973

机译：碳酰肼作为一种固体还原剂，用于气相色谱法（测定偶氮，硝基和磺酸盐化合物）。第一部分：偶氮化合物通过碳酰肼还原反应的气相色谱法和所得化合物的气相色谱法。第二部分：用碳酰肼还原法和气相色谱法分析芳香族硝基化合物和芳香族硫酸酯。
6. Experiment and simulation study of the effect of ethanol and compound additives on the urea-based selective non-catalytic reduction process under moderate temperature conditions [O] . Bang Wu, Ge Pu, Jiantai Du 2018

机译：适度温度条件下乙醇和复合添加剂对尿素基选择性非催化还原过程影响的实验与模拟研究
7. Experiment and simulation study of the effect of ethanol and compound additives on the urea-based selective non-catalytic reduction process under moderate temperature conditions [O] . Bang Wu, Ge Pu, Jiantai Du 2018

机译：乙醇和复合添加剂对中等温度条件下尿素的选择性非催化还原过程的实验与仿真研究
8. Selective Reductions. XXI. 9-Borabicyclo(3.3.1) Nonane in Tetrahydrofuran as a New Selective Reducing Agent in Organic Synthesis. Reaction with Selected Organic Compounds Containing Representative Functional Groups. [R] . Brown, H. C., Krishnamurthy, S., Yoon, N. M. 1976

机译：选择性减少。 XXI。 9-Borabicyclo（3.3.1）四氢呋喃中的壬烷作为有机合成中的新型选择性还原剂。与含有代表性官能团的选定有机化合物反应。

Experiment and Mechanism Analysis of Selective Non-Catalytic Reduction with the Compound Reducing Agents in a Lab-scale CFB Reactor

摘要

著录项

相似文献

相关主题

期刊订阅