生物质氧气气化制备中热值燃气的工艺优化及其示范工程

doi:10.3969/j.issn.0253-2417.2023.04.005

林产化学与工业 ›› 2023, Vol. 43 ›› Issue (4): 31-37.doi: 10.3969/j.issn.0253-2417.2023.04.005

生物质氧气气化制备中热值燃气的工艺优化及其示范工程

徐卫¹^,², 应浩¹, 孙云娟¹^,*(), 许玉¹, 蒋剑春¹

1. 中国林业科学研究院林产化学工业研究所；江苏省生物质能源与材料重点实验室；国家林业和草原局林产化学工程重点实验室；林木生物质低碳高效利用国家工程研究中心；江苏省林业资源高效加工利用协同创新中心，江苏南京 210042
2. 江苏强林生物能源材料有限公司，江苏溧阳 213364

收稿日期:2023-03-17 出版日期:2023-08-28 发布日期:2023-08-26
通讯作者: 孙云娟 E-mail:sunshine990429@163.com
作者简介:孙云娟，副研究员，硕士生导师，研究领域为生物质热化学转化基础与应用；E-mail：sunshine990429@163.com
徐卫(1989—)，男，江苏徐州人，工程师，硕士，主要从事生物质热化学转化技术研究
基金资助:
国家自然科学基金资助项目(51976234);国家重点研发计划资助项目(2022YFB4202001);江苏省生物质能源与材料重点实验室开放基金资助项目(JSBEM201801)

Process Optimization and Demonstration Engineering on Producing Medium Heat Value Bio-gas Through Biomass Oxygen Gasification

Wei XU¹^,², Hao YING¹, Yunjuan SUN¹^,*(), Yu XU¹, Jianchun JIANG¹

1. Institute of Chemical Industry of Forest Products, CAF; Key Lab. of Biomass Energy and Material, Jiangsu Province; Key Lab. of Chemical Engineering of Forest Products, National Forestry and Grassland Administration; National Engineering Research Center of Low-Carbon Processing and Utilization of Forest Biomass; Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing 210042, China
2. Jiangsu Qianglin Biomass Energy and Material Co., Ltd., Liyang 213364, China

Received:2023-03-17 Online:2023-08-28 Published:2023-08-26
Contact: Yunjuan SUN E-mail:sunshine990429@163.com

摘要/Abstract

摘要：

在高温固定床反应器中，进行松木屑氧气气化制备燃气特性研究，考察了气化温度和用量比(ER)对氧气气化制备燃气的热值、产气率以及燃气中各组分体积分数的影响。将获得的最佳工艺参数，在生物质气化制备燃气用于工业锅炉的示范工程中进行了调试和验证。研究结果表明：在气化温度850~950 ℃时，随着用量比的增加，燃气热值呈现先升高后降低的趋势，在用量比为0.24时，燃气热值最高；气化温度对木屑的氧气气化有显著的影响，气化温度升高，燃气热值以及燃气中H₂、CO、CH₄体积分数随之升高，产气率先升高后降低，在900 ℃时达到最高。气化温度900 ℃、用量比0.24为最佳的气化条件，此时气化制备的燃气热值为13.14 MJ/m³，产气率为0.98 L/g，燃气中H₂、CO、CH₄和C₂H_m的体积分数分别为17.64%、39.78%、12.45%和2.76%。将该参数应用于示范工程得到燃气热值为10.90 MJ/m³，产气率约为1.02 L/g。

关键词: 氧气气化, 用量比, 热值, 产气率, 示范工程

Abstract:

The oxygen gasification of pine sawdust for the production of bio-gas was conducted in a high-temperature fixed bed reactor. The impacts of gasification temperature and equivalence ratio(ER) on oxygen gasification prepared bio-gas heat value, bio-gas yield, and the volumetric fraction of each component in bio-gas were evaluated. The obtained optimal process parameters were debugged and validated in the demonstration project of biomass gasification to generate bio-gas for industrial boilers. The results showed that the gasification temperature of 850-950 ℃, the heat value of the gas raised initially then fell with the ER increase, reaching its maximum value when the ER was 0.24. Moreover, the gasification temperature exhibited a significant effect on oxygen gasification of sawdust. With the rise of gasification temperature, the gas heat value and the volumetric fraction of H₂, CO, CH₄ in gas increased, and the gas production rate increased initially, then decreased and reached its highest value at 900 ℃. Under the optimized conditions of gasification temperature of 900 ℃ and the ER of 0.24, the heat value of prepared gas was 13.14 MJ/m³, the gas yield was 0.98 L/g, and the volumetric fractions of H₂, CO, CH₄ and C₂H_m in the gas were 17.64%, 39.78%, 12.45% and 2.76%, respectively. These parameters were implemented in the demonstration engineering, resulting in a calorific value of 10.90 MJ/m³ and a gas production rate of 1.02 L/g.

Key words: oxygen gasification, ER, heat value, gas yield, demonstration engineering

中图分类号:

TQ35

徐卫, 应浩, 孙云娟, 许玉, 蒋剑春. 生物质氧气气化制备中热值燃气的工艺优化及其示范工程[J]. 林产化学与工业, 2023, 43(4): 31-37.

Wei XU, Hao YING, Yunjuan SUN, Yu XU, Jianchun JIANG. Process Optimization and Demonstration Engineering on Producing Medium Heat Value Bio-gas Through Biomass Oxygen Gasification[J]. Chemistry and Industry of Forest Products, 2023, 43(4): 31-37.

图/表 5

表1

图1

图2

图3

表2

参考文献 19

1	REMON J , BROUST F , VALETTE J , et al. Production of a hydrogen-rich gas from fast pyrolysis bio-oils: Comparison between homogeneous and catalytic steam reforming routes[J]. International Journal of Hydrogen Energy, 2014, 39 (1): 171- 182. doi: 10.1016/j.ijhydene.2013.10.025
2	吕潇. 生物质低温气化实验及其机理研究[D]. 南京: 东南大学, 2016.
	LYU X. Experimental study on biomass gasification and its reaction mechanism at lower temperatures[D]. Nanjing: Southeast University, 2016.
3	ZHOU J S , CHEN Q , WANG T J , et al. Biomass-oxygen gasification in a high-temperature entrained-flow gasifier[J]. Biotechnology Advances, 2009, 27 (5): 606- 611. doi: 10.1016/j.biotechadv.2009.04.011
4	孙昊, 孙云娟, 马名哲, 等. 林业资源热解气化供热发电产业发展趋势与战略对策[J]. 生物质化学工程, 2022, 56 (2): 40- 48.
	SUN H , SUN Y J , MA M Z , et al. Development trend and strategic countermeasures of forestry resources gasification, heat supply and power generation industry[J]. Biomass Chemical Engineering, 2022, 56 (2): 40- 48.
5	ANSARI M H , JAFARIAN S , TAVASOLI A , et al. Hydrogen rich gas production via nano-catalytic pyrolysis of bagasse in a dual bed reactor[J]. Journal of Natural Gas Science and Engineering, 2014, 19, 279- 286. doi: 10.1016/j.jngse.2014.05.018
6	任菊荣, 苏允泓, 应浩, 等. 生物质气化制富氢合成气的研究进展[J]. 生物质化学工程, 2022, 56 (3): 39- 46.
	REN J R , SU Y H , YING H , et al. Research progress of biomass gasification for hydrogen-rich syngas[J]. Biomass Chemical Engineering, 2022, 56 (3): 39- 46.
7	WANG S R , WANG H X , YIN Q Q , et al. Methanation of bio-syngas over a biochar supported catalyst[J]. New Journal of Chemistry, 2010, 89 (8): 1763- 1783.
8	DING M Y , TU J L , ZHANG Q , et al. Enhancement of methanation of bio-syngas over CeO₂-modified Ni/Al₂O₃ catalysts[J]. Biomass and Bioenergy, 2016, 85, 12- 17. doi: 10.1016/j.biombioe.2015.11.025
9	KARMAKAR M K , DATTA A B . Generation of hydrogen rich gas through fluidized bed gasification of biomass[J]. Bioresource Technology, 2011, 102 (2): 1907- 1913. doi: 10.1016/j.biortech.2010.08.015
10	孟凡彬, 王贵路, 李晓伟, 等. 高当量比生物质氧气气化试验研究[J]. 太阳能学报, 2013, 34 (3): 377- 381.
	MENG F B , WANG G L , LI X W , et al. Experimental study on high equivalence ratio biomass oxygen gasification[J]. Acta Energiae Solaris Sinica, 2013, 34 (3): 377- 381.
11	刘建坤, 王贵路, 李晓伟, 等. 固定床生物质富氧气化中试实验研究[J]. 太阳能学报, 2013, 34 (3): 365- 369.
	LIU J K , WANG G L , LI X W , et al. Experimental study on oxygen rich biomass gasification in a pilot scale fixed bed gasifier[J]. Acta Energiae Solaris Sinica, 2013, 34 (3): 365- 369.
12	赵先国, 常杰, 吕鹏梅, 等. 生物质流化床富氧气化的实验研究[J]. 燃料化学学报, 2005, 33 (2): 199- 204.
	ZHAO X G , CHANG J , LYU P M , et al. Biomass gasification under O₂-rich gas in a fluidized bed reactor[J]. Journal of Fuel Chemistry and Technology, 2005, 33 (2): 199- 204.
13	李琳娜, 应浩, 涂军令, 等. 木屑高温水蒸气气化制备富氢燃气的特性研究[J]. 林产化学与工业, 2011, 31 (5): 18- 24.
	LI L N , YING H , TU J L , et al. High-temperature steam gasification of sawdust for production of hydrogen-rich gas[J]. Chemistry and Industry of Forest Products, 2011, 31 (5): 18- 24.
14	刘琨琨. 基于白云石负载铁铈催化剂生物质催化气化实验研究[D]. 包头: 内蒙古科技大学, 2020.
	LIU K K. Experimental research on biomass catalytic gasification based on Fe-Ce/Dol catalyst[D]. Baotou: Inner Mongolia University of Science & Technology, 2020.
15	MOHAMED G , RAINER B . Evaluation of cyclone gasifier performance for gasification of sugar caneresidue-Part 2:Gasification of cane trash[J]. Biomassand Bioenergy, 2001, 21 (5): 371- 380.
16	GUA J H , PARKA Y S , NAMA S B , et al. The characteristics of oxygen-enriched gasification for fluff SRF[J]. Procedia Environmental Sciences, 2016, 35, 541- 545.
17	LI Y P , CHEN L G , WANG T J , et al. Demonstration of pilot-scale bio-dimethyl ether synthesis via oxygen- and steam- enriched gasification of wood chips[J]. Energy Procedia, 2015, 75, 202- 207.
18	GIL J , CABALLERO M , MARTIN J A , et al. Biomass gasification with air in a fluidized bed: Effect of the in-bed use of dolomite under different operation conditions[J]. Industrial & Engineering Chemistry Research, 1999, 38 (11): 4226- 4235.
19	ANDREW R , GOKAK D T , SHARMA P , et al. Novel hydrogen-rich gas production by steam gasification of biomass in a research-scale rotary tubular helical coil gasifier[J]. International Journal of Energy Research, 2016, 40 (13): 1788- 1799.

反应类型 reaction type	反应方程式 reaction equation
总反应 total reaction	生物质 biomass+O₂→H₂+CO+CO₂+CH₄+C₂H_m+Q kJ/mol
焦油裂解反应 tar cracking reaction	焦油 tar→aH₂+bCH₄+cCO+dCO₂+eH₂O+fC₂H_m+Q kJ/mol
碳不完全燃烧反应 incomplete combustion reaction of carbon	C+1/2O₂→CO
碳完全燃烧反应 complete combustion reaction of carbon	C+O₂→CO₂
甲烷化反应 methanation reaction	C+2H₂→CH₄
歧化反应 disproportionated reaction	C+CO₂→2CO
水蒸气还原反应 steam reduction reaction	C+H₂O→CO+H₂
CO的变换反应 CO transformation reaction	CO+H₂O→CO₂+H₂
甲烷重整反应 methane reforming reaction	CH₄+H₂O→CO+3H₂
H₂燃烧反应 H₂ combustion reaction	H₂+1/2O₂→H₂O
CO燃烧反应 CO combustion reaction	2CO+O₂→2CO₂

温度/℃ temp.	ER	燃气组分 gas composition¹⁾/%						Q_LHV/(MJ·m^-3) lower heat value	产气率/(L·g^-1) gas yield	固体产率/% solid yield
温度/℃ temp.	ER	H₂	O₂	CO₂	CO	CH₄	C₂H_m	Q_LHV/(MJ·m^-3) lower heat value	产气率/(L·g^-1) gas yield	固体产率/% solid yield
800	0.21	14.91	2.55	38.39	32.96	8.04	3.15	10.65	0.76	8.20
	0.24	14.89	1.27	41.04	31.61	7.98	3.21	10.49	0.81	5.25
	0.27	15.07	2.11	44.77	27.23	7.81	2.99	9.76	0.84	4.88
	0.30	15.87	1.78	44.49	27.72	7.39	2.76	9.61	0.89	3.43
	0.33	14.36	3.78	46.36	25.93	6.89	2.67	8.99	0.91	2.20
850	0.21	19.25	1.59	31.23	32.36	12.97	2.60	12.46	0.89	3.60
	0.24	15.95	3.34	29.31	36.28	11.91	3.21	12.61	0.89	2.05
	0.27	14.78	1.22	33.29	35.74	12.26	2.71	12.22	0.88	1.54
	0.30	11.89	1.78	37.61	34.24	10.85	3.30	11.59	0.97	1.43
	0.33	11.72	2.14	42.24	29.74	11.25	2.90	10.89	0.94	1.57
900	0.21	17.80	2.02	31.10	35.15	11.58	2.35	12.00	0.99	0.80
	0.24	17.64	0.71	26.66	39.78	12.45	2.76	13.14	0.98	1.37
	0.27	15.87	3.98	25.20	40.12	12.05	2.78	12.86	0.95	1.29
	0.30	16.95	1.74	30.14	39.95	9.46	1.76	11.38	0.96	1.71
	0.33	14.82	2.00	37.33	35.17	8.10	2.58	10.57	0.97	1.89
950	0.21	18.43	1.34	22.35	43.83	12.00	2.05	13.12	0.93	1.00
	0.24	19.78	3.48	20.12	42.04	12.37	2.22	13.28	0.93	1.14
	0.27	20.13	1.24	24.31	40.28	11.88	2.18	12.89	0.96	1.54
	0.30	17.63	2.28	24.37	41.29	11.93	2.51	12.98	0.92	2.00
	0.33	17.92	2.23	26.42	38.85	12.15	2.43	12.73	0.96	1.26

[1]	徐卫, 孙宁, 应浩, 孙云娟, 许玉, 贾爽. 木屑半焦高温水蒸气气化制备富氢燃气研究[J]. 林产化学与工业, 2017, 37(3): 107-114.
[2]	卢辛成;蒋剑春;孟中磊;孙康;谢新苹. 生物质成型炭的制备及其性能研究[J]. 林产化学与工业, 2013, 33(2): 81-84.

生物质氧气气化制备中热值燃气的工艺优化及其示范工程

Process Optimization and Demonstration Engineering on Producing Medium Heat Value Bio-gas Through Biomass Oxygen Gasification

RichHTML

PDF (PC)

可视化

摘要/Abstract

引用本文

使用本文

图/表 5

参考文献 19

相关文章 2

编辑推荐

Metrics

本文评价

关于本刊

投稿指南

在线期刊

相关单位

联系我们