磷酸二氢铵对玉米秆烘焙及固定床燃烧颗粒物排放特性的影响

doi:10.11949/0438-1157.20201476

化工学报 ›› 2021, Vol. 72 ›› Issue (6): 3359-3367.DOI: 10.11949/0438-1157.20201476

磷酸二氢铵对玉米秆烘焙及固定床燃烧颗粒物排放特性的影响

吴贵豪^1,³(),朱有健^2,³(),樊纪原³,成伟³,蒋好³,杨海平³,陈汉平³()

^1.华中科技大学中欧清洁与可再生能源学院，湖北武汉 430074
^2.郑州轻工业大学能源与动力工程学院，河南郑州 450002
^3.华中科技大学能源与动力工程学院煤燃烧国家重点实验室，湖北武汉 430074

收稿日期:2020-10-22 修回日期:2021-01-17 出版日期:2021-06-05 发布日期:2021-06-05
通讯作者: 朱有健,陈汉平
作者简介:吴贵豪（1995—），男，硕士研究生，wuguihao@hust.edu.cn
基金资助:
国家自然科学基金项目(51706210)

Effects of the addition of NH₄H₂PO₄ in corn stalk on torrefaction and PM emissions in fixed bed combustion

WU Guihao^1,³(),ZHU Youjian^2,³(),FAN Jiyuan³,CHENG Wei³,JIANG Hao³,YANG Haiping³,CHEN Hanping³()

^1.China-EU Institute for Clean and Renewable Energy, Huazhong University of Science & Technology, Wuhan 430074, Hubei, China
^2.School of Energy and Power Engineering, Zhengzhou University of Light Industry, Zhengzhou 450002, Henan, China
^3.State Key Laboratory of Coal Combustion, School of Energy and Power Engineering, Huazhong University of Science & Technology, Wuhan 430074, Hubei, China

Received:2020-10-22 Revised:2021-01-17 Online:2021-06-05 Published:2021-06-05
Contact: ZHU Youjian,CHEN Hanping

摘要/Abstract

摘要：

使用立式管式炉反应器并结合低压撞击器颗粒物采集装置研究了玉米秆掺混磷酸二氢铵（NH₄H₂PO₄）烘焙对烘焙产物理化性质及固定床中燃烧颗粒物排放的影响。结果表明，玉米秆单独烘焙可有效提升生物质品质，但也提升了颗粒物排放。300℃烘焙时，PM₁、PM_1-2.5和PM_2.5-10分别增排76.5%、194.8%和170.2%。在烘焙过程掺混NH₄H₂PO₄可进一步提质，使得固体产物灰分有不同程度的增加，显著降低固体产物的O/C比，并提高样品的无灰基热值。此外，研究发现掺混NH₄H₂PO₄可显著提高烘焙过程Cl的释放率并降低固体产物中Cl的含量，有利于降低后续燃烧PM₁的排放。在掺混比例P/K摩尔比为1时减排效果最佳，此时PM₁相比无掺混时减排28.8%。结果表明在生物质烘焙过程引入NH₄H₂PO₄可以促进Cl的脱除并减少后续燃烧过程细颗粒物的排放，是一种有前景的生物质预处理手段。

关键词: 磷酸二氢铵, 玉米秆, 烘焙, 颗粒物, 排放特性

Abstract:

Using a vertical tube furnace reactor combined with a low-pressure impactor particle collection device, the effects of corn stalk roasting mixed with ammonium dihydrogen phosphate (NH₄H₂PO₄) on the physical and chemical properties of roasted products and the emission of combustion particles in the fixed bed were studied. The results show that the corn stalk baking alone can effectively improve the quality of biomass, but also increase the emission of particulate matter. When baking at 300℃, PM₁, PM_1-2.5 and PM_2.5-10 increase by 76.5%, 194.8% and 170.2%, respectively. Studies have shown that the torrefied corn stalk with NH₄H₂PO₄ increased the ash content of solid products, but significantly reduced the O/C ratio of solid products and increased the ash-free heating value. In addition, blending NH₄H₂PO₄ can significantly increase the release rate of Cl during torrefaction and reduce the content of Cl in the solid product. Torrefaction with NH₄H₂PO₄ can effectively reduce the emission of particulate matter, especially PM₁, and the best effect is achieved when the mixing P/K molar ratio is 1, at this case, PM₁reduces emissions by 28.8% compared to when no additive is added. Studies have shown that the introduction of NH₄H₂PO₄ in the biomass torrefaction can promote the removal of Cl and reduce the emission of fine particles in the subsequent combustion process.

Key words: NH₄H₂PO₄, corn stalk, torrefaction, particulate matter, emission characteristics

中图分类号:

TK 6

吴贵豪, 朱有健, 樊纪原, 成伟, 蒋好, 杨海平, 陈汉平. 磷酸二氢铵对玉米秆烘焙及固定床燃烧颗粒物排放特性的影响[J]. 化工学报, 2021, 72(6): 3359-3367.

WU Guihao, ZHU Youjian, FAN Jiyuan, CHENG Wei, JIANG Hao, YANG Haiping, CHEN Hanping. Effects of the addition of NH₄H₂PO₄ in corn stalk on torrefaction and PM emissions in fixed bed combustion[J]. CIESC Journal, 2021, 72(6): 3359-3367.

图/表 10

参考文献 31

1	Barskov S, Zappi M, Buchireddy P, et al. Torrefaction of biomass: a review of production methods for biocoal from cultured and waste lignocellulosic feedstocks[J]. Renewable Energy, 2019, 142: 624-642.
2	Ong H C, Chen W, Singh Y, et al. A state-of-the-art review on thermochemical conversion of biomass for biofuel production: a TG-FTIR approach[J]. Energy Conversion and Management, 2020, 209: 112634.
3	Chen Z, Wang M, Jiang E, et al. Pyrolysis of torrefied biomass[J]. Trends in Biotechnology, 2018, 36(12): 1287-1298.
4	Hernández J J, Lapuerta M, Monedero E, et al. Biomass quality control in power plants: technical and economical implications[J]. Renewable Energy, 2018, 115: 908-916.
5	Niu Y, Lv Y, Lei Y, et al. Biomass torrefaction: properties, applications, challenges, and economy[J]. Renewable and Sustainable Energy Reviews, 2019, 115: 109395.
6	Xin S, Mi T, Liu X, et al. Effect of torrefaction on the pyrolysis characteristics of high moisture herbaceous residues[J]. Energy, 2018, 152: 586-593.
7	Wang L, Barta-Rajnai E, Skreiberg Ø, et al. Effect of torrefaction on physiochemical characteristics and grindability of stem wood, stump and bark[J]. Applied Energy, 2018, 227: 137-148.
8	van Lith S C, Jensen P A, Frandsen F J, et al. Release to the gas phase of inorganic elements during wood combustion (Part 2): Influence of fuel composition[J]. Energy & Fuels, 2008, 22(3): 1598-1609.
9	Johansen J M, Jakobsen J G, Frandsen F J, et al. Release of K, Cl, and S during pyrolysis and combustion of high-chlorine biomass[J]. Energy & Fuels, 2011, 25(11): 4961-4971.
10	Saleh S B, Flensborg J P, Shoulaifar T K, et al. Release of chlorine and sulfur during biomass torrefaction and pyrolysis[J]. Energy & Fuels, 2014, 28(6): 3738-3746.
11	Chen D, Gao A, Ma Z, et al. In-depth study of rice husk torrefaction: characterization of solid, liquid and gaseous products, oxygen migration and energy yield[J]. Bioresource Technology, 2018, 253: 148-153.
12	Yani S, Gao X, Wu H. Emission of Inorganic PM₁₀ from the combustion of torrefied biomass under pulverized-fuel conditions[J]. Energy & Fuels, 2015, 29(2): 800-807.
13	Hu Z, Wang X, Adeosun A, et al. Aggravated fine particulate matter emissions from heating-upgraded biomass and biochar combustion: the effect of pretreatment temperature[J]. Fuel Processing Technology, 2018, 171: 1-9.
14	Kai X, Meng Y, Yang T, et al. Effect of torrefaction on rice straw physicochemical characteristics and particulate matter emission behavior during combustion[J]. Bioresource Technology, 2019, 278: 1-8.
15	Xu Y, Liu X, Zhang Y, et al. A novel Ti-based sorbent for reducing ultrafine particulate matter formation during coal combustion[J]. Fuel, 2017, 193: 72-80.
16	Si J, Liu X, Xu M, et al. Effect of kaolin additive on PM_2.5 reduction during pulverized coal combustion: Importance of sodium and its occurrence in coal[J]. Applied Energy, 2014, 114: 434-444.
17	Yang W, Zhu Y, Cheng W, et al. Effect of minerals and binders on particulate matter emission from biomass pellets combustion[J]. Applied Energy, 2018, 215: 106-115.
18	樊纪原, 朱有健, 吴贵豪, 等. 磷酸二氢铵对生物质燃烧过程中颗粒物排放特性的影响[J]. 中国电机工程学报, 2020, 40(1): 176-182.
	Fan J Y, Zhu Y J, Wu G H, et al. Effect of NH₄H₂PO₄ additives on PM emissions from the combustion of biomass [J]. Proceedings of the Chinese Society of Electrical Engineering, 2020, 40(1): 176-182.
19	Liu X R, Yuan L J, Yang X D. Evolution of chemical functional groups during torrefaction of rice straw[J]. Bioresource Technology, 2021, 320: 124328.
20	Shao J A, Cheng W, Zhu Y, et al. Effects of combined torrefaction and pelletization on particulate matter emission from biomass pellet combustion[J]. Energy & Fuels, 2019, 33(9): 8777-8785.
21	刘恒. 烘焙对玉米秆Cl、S及AAEMs迁徙转化特性影响的研究[D]. 武汉: 华中科技大学, 2019
	Liu H. Effects of torrefaction on migration and transformation characteristics of Cl, S and AAEMs in corn stalks [D]. Wuhan: Huazhong University of Science and Technology, 2019.
22	Zhao L, Cao X, Zheng W, et al. Copyrolysis of biomass with phosphate fertilizers to improve biochar carbon retention, slow nutrient release, and stabilize heavy metals in soil[J]. ACS Sustainable Chemistry & Engineering, 2016, 4(3): 1630-1636.
23	赵乘寿, 宫聪, 汪鹏, 等.含磷酸二氢铵细水雾灭火有效性研究[J].消防科学与技术, 2011, 30(9): 822-824.
	Zhao C S, Gong C, Wang P, et al. Experimental study on fire suppression effectiveness of water mist with ammonium dihydrogen phosphate[J]. Fire Science and Technology, 2011, 30(9): 822-824.
24	贡长生. 现代磷化工技术和应用[M]. 北京: 化学工业出版社, 2013: 843-860.
	Gong C S. Modern Phosphorus Chemical Technology and Application[M]. Beijing: Chemical Industry Press, 2013: 843-860.
25	Wang Q, Han K, Gao J, et al. Investigation of maize straw char briquette ash fusion characteristics and the influence of phosphorus additives[J]. Energy & Fuels, 2017, 31(3): 2822-2830.
26	Zhu Y, Fan J, Yang P, et al. P-based additive for reducing fine particulate matter emissions during agricultural biomass combustion[J]. Energy & Fuels, 2019, 33(11): 11274-11284.
27	赵京, 张玉锋, 魏小林, 等. 高碱煤燃烧过程中亚微米颗粒物PM₁的生成特性[J]. 化工学报, 2019, 70(8): 3113-3120.
	Zhao J, Zhang Y F, Wei X L, et al. PM₁ formation characteristics during high-alkali coal combustion [J]. CIESC Journal, 2019, 70(8): 3113-3120.
28	郑传杰, 盛昌栋. 高温烟气中吸附剂捕集K的模型及其反应动力学研究[J]. 化工学报, 2019, 70(6): 2259-2268.
	Zheng C J, Sheng C D. Modeling and reaction kinetics study on K capture by adsorbents in high temperature flue gas [J]. CIESC Journal, 2019, 70(6): 2259-2268.
29	于敦喜, 徐明厚, 易帆, 等. 燃煤过程中颗粒物的形成机理研究进展[J]. 煤炭转化, 2004, (4): 7-12.
	Yu D X, Xu M H, Yi F, et al. A review on particle formation mechanisms during coal combustion [J]. Coal Conversion, 2004, (4): 7-12.
30	孔卉茹, 张媛媛, 李永茂, 等. 低热值煤电厂配煤技术研究进展[J]. 洁净煤技术, 2016, 22(6): 1-9.
	Kong H R, Zhang Y Y, Li Y M, et al. Development tendency of coal blending technologies in coal-fired power plants burning low calorific value coal [J]. Clean Coal Technology, 2016, 22(6): 1-9.
31	Novaković A, van Lith S C, Frandsen F J, et al. Release of potassium from the systems K-Ca-Si and K-Ca-P[J]. Energy & Fuels, 2009, 23(7): 3423-3428.

样品	工业分析/%(质量)			元素分析/%(质量)					原子比		HHV/(MJ/kg)	HHV^①/(MJ/kg)	固碳率/%
样品	Ash	Volatile	Fixed carbon	C	H	O^②	N	S	O/C	H/C	HHV/(MJ/kg)	HHV^①/(MJ/kg)	固碳率/%
CS	8.69	73.87	17.44	43.06	5.72	41.27	0.74	0.52	0.96	0.13	16.16	17.70	100.00
CS220	9.47	71.53	19.00	45.76	5.69	37.62	1.05	0.41	0.82	0.12	17.77	19.63	98.85
CS220-ADP_0.5	10.69	68.64	20.67	45.75	5.41	36.86	1.03	0.25	0.81	0.12	17.53	19.73	93.09
CS220-ADP₁	13.27	66.79	19.94	45.90	5.36	33.92	1.29	0.25	0.74	0.12	17.29	19.91	90.28
CS220-ADP₂	20.36	58.42	21.23	45.70	5.04	27.09	1.67	0.14	0.59	0.11	16.79	21.42	84.36
CS260	10.55	62.59	26.86	46.78	5.33	35.90	1.09	0.36	0.77	0.11	18.41	20.58	86.07
CS260-ADP_0.5	11.40	63.00	25.60	46.91	5.19	35.06	1.24	0.21	0.75	0.11	18.14	20.39	83.46
CS260-ADP₁	15.60	61.31	23.08	46.92	5.06	30.80	1.44	0.19	0.66	0.11	17.87	20.91	82.04
CS260-ADP₂	16.41	57.87	25.72	47.47	4.86	29.51	1.65	0.10	0.62	0.10	17.31	23.25	80.00
CS300	11.29	45.45	43.26	55.55	4.55	26.78	1.41	0.41	0.48	0.08	20.11	22.67	63.99
CS300-ADP_0.5	14.24	49.31	36.45	52.91	4.52	26.64	1.51	0.19	0.50	0.09	19.72	22.96	60.95
CS300-ADP₁	19.36	46.99	33.65	52.91	4.37	21.56	1.63	0.18	0.41	0.08	19.38	23.89	64.64
CS300-ADP₂	30.05	39.71	30.25	54.16	3.86	9.46	2.38	0.09	0.17	0.07	18.68	27.00	67.90

样品	工业分析/%(质量)			元素分析/%(质量)					原子比		HHV/(MJ/kg)	HHV^①/(MJ/kg)	固碳率/%
样品	Ash	Volatile	Fixed carbon	C	H	O^②	N	S	O/C	H/C	HHV/(MJ/kg)	HHV^①/(MJ/kg)	固碳率/%
CS	8.69	73.87	17.44	43.06	5.72	41.27	0.74	0.52	0.96	0.13	16.16	17.70	100.00
CS220	9.47	71.53	19.00	45.76	5.69	37.62	1.05	0.41	0.82	0.12	17.77	19.63	98.85
CS220-ADP_0.5	10.69	68.64	20.67	45.75	5.41	36.86	1.03	0.25	0.81	0.12	17.53	19.73	93.09
CS220-ADP₁	13.27	66.79	19.94	45.90	5.36	33.92	1.29	0.25	0.74	0.12	17.29	19.91	90.28
CS220-ADP₂	20.36	58.42	21.23	45.70	5.04	27.09	1.67	0.14	0.59	0.11	16.79	21.42	84.36
CS260	10.55	62.59	26.86	46.78	5.33	35.90	1.09	0.36	0.77	0.11	18.41	20.58	86.07
CS260-ADP_0.5	11.40	63.00	25.60	46.91	5.19	35.06	1.24	0.21	0.75	0.11	18.14	20.39	83.46
CS260-ADP₁	15.60	61.31	23.08	46.92	5.06	30.80	1.44	0.19	0.66	0.11	17.87	20.91	82.04
CS260-ADP₂	16.41	57.87	25.72	47.47	4.86	29.51	1.65	0.10	0.62	0.10	17.31	23.25	80.00
CS300	11.29	45.45	43.26	55.55	4.55	26.78	1.41	0.41	0.48	0.08	20.11	22.67	63.99
CS300-ADP_0.5	14.24	49.31	36.45	52.91	4.52	26.64	1.51	0.19	0.50	0.09	19.72	22.96	60.95
CS300-ADP₁	19.36	46.99	33.65	52.91	4.37	21.56	1.63	0.18	0.41	0.08	19.38	23.89	64.64
CS300-ADP₂	30.05	39.71	30.25	54.16	3.86	9.46	2.38	0.09	0.17	0.07	18.68	27.00	67.90

样品	Yield/(mg/g fuel)							(PM₁ / PM₁₀)/%
样品	PM_0.1	PM_0.1-1	PM₁	PM_1-2.5	PM_2.5	PM_2.5-10	PM₁₀	(PM₁ / PM₁₀)/%
CS	0.466±0.096	7.511±0.302	7.977±0.347	1.122±0.078	9.099±0.426	0.939±0.046	10.038±0.473	79.47
CS220	0.252±0.095	9.334±0.184	9.586±0.278	1.332±0.052	10.918±0.332	1.027±0.018	11.945±0.313	80.25
CS260	0.199±0.027	10.277±0.259	10.476±0.545	1.814±0.323	12.290±0.221	1.274±0.109	13.564±0.111	77.23
CS300	0.338±0.087	13.743±0.393	14.081±0.481	3.309±0.170	17.390±0.310	2.536±0.070	19.926±0.239	70.67

样品	Yield/(mg/g fuel)							(PM₁ / PM₁₀)/%
样品	PM_0.1	PM_0.1-1	PM₁	PM_1-2.5	PM_2.5	PM_2.5-10	PM₁₀	(PM₁ / PM₁₀)/%
CS	0.466±0.096	7.511±0.302	7.977±0.347	1.122±0.078	9.099±0.426	0.939±0.046	10.038±0.473	79.47
CS220	0.252±0.095	9.334±0.184	9.586±0.278	1.332±0.052	10.918±0.332	1.027±0.018	11.945±0.313	80.25
CS260	0.199±0.027	10.277±0.259	10.476±0.545	1.814±0.323	12.290±0.221	1.274±0.109	13.564±0.111	77.23
CS300	0.338±0.087	13.743±0.393	14.081±0.481	3.309±0.170	17.390±0.310	2.536±0.070	19.926±0.239	70.67

样品	Yield/(mg/g fuel)							(PM₁ / PM₁₀)/%
样品	PM_0.1	PM_0.1-1	PM₁	PM_1-2.5	PM_2.5	PM_2.5-10	PM₁₀	(PM₁ / PM₁₀)/%
CS300	0.338±0.087	13.743±0.393	14.081±0.481	3.309±0.170	17.390±0.310	2.536±0.070	19.926±0.239	70.67
CS300-ADP_0.5	0.230±0.044	11.857±0.193	12.087±0.148	3.840±0.001	15.927±0.146	1.794±0.033	17.721±0.112	68.21
CS300-ADP₁	0.741±0.245	9.282±0.713	10.023±0.959	4.083±0.319	14.105±0.639	1.809±0.156	15.914±0.483	62.98
CS300-ADP₂	0.669±0.168	10.756±0.228	11.425±0.397	5.286±0.232	16.711±0.630	2.665±0.006	19.377±0.637	58.96

磷酸二氢铵对玉米秆烘焙及固定床燃烧颗粒物排放特性的影响

Effects of the addition of NH₄H₂PO₄ in corn stalk on torrefaction and PM emissions in fixed bed combustion

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磷酸二氢铵对玉米秆烘焙及固定床燃烧颗粒物排放特性的影响

Effects of the addition of NH4H2PO4 in corn stalk on torrefaction and PM emissions in fixed bed combustion

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Effects of the addition of NH₄H₂PO₄ in corn stalk on torrefaction and PM emissions in fixed bed combustion