超重力强化AMP-PZ复合溶液脱碳技术及表观动力学

doi:10.16085/j.issn.1000-6613.2021-2502

摘要/Abstract

摘要：

为提高工业上火电厂乙醇胺（MEA）吸收塔脱碳工艺中脱碳率和反应速率，提出了超重力技术耦合2-氨基-2-甲基-1-丙醇-对二氮己环（AMP-PZ）混合胺脱碳方法。正交实验表明：不同操作参数对脱碳率的影响显著性大小依次为：超重力因子、气液比、吸收剂质量浓度、主吸收剂含量、温度；最佳操作条件为：超重力因子为60，气液比为15，吸收剂质量分数为25%，主吸收剂质量分数为60%，温度为25℃，CO₂脱除率可达97.16%。相对传统的乙醇胺（MEA）吸收塔法，CO₂脱除率提高了7.16%。相同操作条件下，旋转填料床的脱碳反应速率常数比曝气反应装置高一倍。建立了超重力场中AMP-PZ脱碳表观动力学模型，不同操作参数对反应速率常数的显著性影响大小依次为：超重力因子>气液比>吸收剂质量浓度。

关键词: 2-氨基-2-甲基-1-丙醇, 对二氮己环, 二氧化碳, 超重力, 传质, 正交试验, 表观动力学

Abstract:

To improve the efficiency and rate of absorption process of thermal power plant for CO₂ removal using ethanolamine (MEA), the high-gravity intensification technology was applied and coupled with 2-amino-2-methyl-1-propanol and piperazine (AMP-PZ) to absorb CO₂ in waste gas. The results of orthogonal test showed that the significance of different operating parameters on the CO₂ removal efficiency was in order from high to low as follows: high-gravity factor, gas-liquid ratio, absorbent mass concentration, main absorbent content and temperature. The optimal operating parameters were obtained with the high-gravity factor of 60, gas-liquid ratio of 15, absorbent mass concentration of 25%, and main absorbent content of 60%, under which the CO₂ removal efficiency could reach 97.16%. Compared with the results of conventional absorption tower process with ethanolamine (MEA), the CO₂ removal efficiency increased by 7.16%. The reaction rate constant for CO₂ removal was two times that of aeration reaction equipment. A kinetic model of CO₂ absorption by a blend of AMP-PZ was established in high gravity field.

Key words: AMP, PZ, carbon dioxide, high-gravity, mass transfer, orthogonal test, absorption kinetic model

中图分类号:

X701

栗秀萍, 于洋, 何旺, 吕俊辉. 超重力强化AMP-PZ复合溶液脱碳技术及表观动力学[J]. 化工进展, 2022, 41(S1): 22-28.

LI Xiuping, YU Yang, HE Wang, LYU Junhui. High-gravity intensified decarburization process and apparent kinetics of AMP-PZ composite solution[J]. Chemical Industry and Engineering Progress, 2022, 41(S1): 22-28.

图/表 13

参考文献 17

1	韩中合, 肖坤玉, 赵豫晋, 等. MEA法与冷冻氨法脱碳工艺对比分析[J]. 华北电力大学学报(自然科学版), 2016, 43(4): 87-93.
	HAN Zhonghe, XIAO Kunyu, ZHAO Yujin, et al. Comparison between mea and chilled ammonia based carbon capture process[J]. Journal of North China Electric Power University, 2016, 43(4): 87-93.
2	安山龙, 王以群, 吴子健. 空间位阻胺AMP捕集CO₂技术研究进展[J]. 应用化工, 2020, 49(10): 2636-2640.
	AN Shanlong, WANG Yiqun, WU Zijian. Research progresses in CO₂capture technology using sterically hindered amine AMP[J]. Applied Chemical Industry, 2020, 49(10): 2636-2640.
3	穆艾伟, 樊俊杰, 江砚池, 等. 混合胺复配溶液对二氧化碳的吸收/解吸[J]. 环境化学, 2020, 39(2): 409-415.
	MU Aiwei, FAN Junjie, JIANG Yanchi, et al. CO₂ absorption/desorption using aqueous solution blended with mixed amine[J]. Environmental Chemistry, 2020, 39(2): 409-415.
4	MANDAL B P, BISWAS A K, BANDYOPADHYAY S S. Absorption of carbon dioxide into aqueous belends of 2-amino-2-methyl-1-propanol and diethanolamine[J]. Chemical Engineering Science, 2003, 58: 4137-4144.
5	肖坤儒, 王梅, 吴鹏涛, 等. 以AMP为主体的混合胺溶液捕集CO₂性能研究[J]. 化学工程, 2016, 44(4): 6-10.
	XIAO Kunru, WANG Mei, WU Pengtao, et al. Capture of carbon dioxide with blended amine solution based on AMP[J]. Chemical Engineering, 2016, 44(4): 6-10.
6	TAN C S, CHEN J E. Absorption of carbon dioxide with piperazine and its mixtures in a rotating packed bed[J]. Separation and Purification Technology, 2006, 49(2): 174-180.
7	邢银全, 刘有智, 崔磊军. 超重力旋转床强化吸收烟道气中CO₂试验研究[J]. 现代化工, 2007(S2): 470-473.
	XING Yinquan, LIU Youzhi, CUI Leijun. Experimental study on intensification absorption of carbon dioxide from simulation flue gas by high-gravity rotary packed bed[J]. Modern Chemical Industry, 2007(S2): 470-473.
8	SHENG M, SUN B, ZHANG F, et al. Mass-transfer characteristics of the CO₂ absorption process in a rotating packed bed[J]. Energy & Fuels, 2016, 30(5): 4215-4220.
9	TAN C S, CHEN J E. Absorption of carbon dioxide with piperazine and its mixtures in a rotating packed bed[J]. Separation and Purification Technology, 2006, 49(2): 174-180.
10	CHEN J, TIAN S H, LU J, et al. Catalytic performance of MgO with different exposed crystal facets towards the ozonation of 4-chlorophenol[J]. Applied Catalysis A: General, 2015, 506: 118-125.
11	陆诗建, 毛松柏, 李玉星, 等. AMP-PZ复合体系吸收CO₂反应动力学研究[J]. 山东化工, 2020, 49(8): 40-44+47.
	Lu Shijian, Mao Songbai, Li Yuxing, et al. Study on the kinetics of absorption of CO₂ by AMP-PZ composite system[J]. Shandong Chemical Industry, 2020, 49(8): 40-44+47.
12	陈健, 罗伟亮, 李晗. 有机胺吸收二氧化碳的热力学和动力学研究进展[J]. 化工学报, 2014, 65(1): 12-21.
	CHEN Jian, LUO Weiliang, LI Han. A review for research on thermodynamics and kinetics of carbon dioxide absorption with organic amines[J]. CIESC Journal, 2014, 65(1): 12-21.
13	Fernando J B, FRANCISCO J R, LIDIA A F, et al. Kinetics of catalytic ozonation of oxalic acid in water with activated carbon[J]. Industrial & Engineering Chemistry Research, 2002, 41(25): 6510-6517.
14	Fernando J B, RAVIS J, ÁLVAREZ P, et al. Kinetics of heterogeneous catalytic ozone decomposition in water on an activated carbon[J]. Ozone: Science & Engineering, 2002, 24(4): 227-237.
15	CHENG H H, TAN C S. Removal of CO₂ from indoor air by alkanolamine in a rotaing packed bed[J]. Separation and Purification Technology. 2011, 82: 156-166.
16	刘有智. 超重力化工过程与技术[M]. 北京: 国防工业出版社, 2009: 20-21.
	LIU Youzhi. Chaozhongli Huagongguocheng Yu Jishu[M]. Beijing: National Defense Industry Press, 2009: 20-21.
17	周文来, 陈健. N-甲基二乙醇胺+环丁砜水溶液吸收CO₂的动力学研究[J]. 天然气化工—C1 化学与化工, 2003, 28(1): 1-4.
	ZHOU Wenlai, CHEN Jian. Study on kinetics for absorption of carbon dioxide with MEDA+sulfolane aqueous solution[J]. Natural Gas Chemical Industry, 2003, 28(1): 1-4.

参数	因素
参数	1：超重力因子	2：气液比	3：吸收剂质量分数/%	4：温度/℃	5：主吸收剂质量分数/%	6	7	8：脱碳率/%
试验1	1	1	1	1	1	1	1	88.6
试验2	1	2	2	2	2	2	2	85.3
试验3	1	3	3	3	3	3	3	81.4
试验4	2	1	1	2	2	3	3	95.4
试验5	2	2	2	3	3	1	1	93.1
试验6	2	3	3	1	1	2	3	92.2
试验7	3	1	2	1	3	2	3	89.3
试验8	3	2	3	2	1	3	1	81.8
试验9	3	3	1	3	2	1	2	82.1
试验10	1	1	3	3	2	2	1	89.3
试验11	1	2	1	1	3	3	2	81.9
试验12	1	3	2	2	1	1	3	83.1
试验13	2	1	2	3	1	3	2	95.8
试验14	2	2	3	1	2	1	3	92.6
试验15	2	3	1	2	3	2	1	91.9
试验16	3	1	3	2	3	1	2	87.9
试验17	3	2	1	3	1	2	3	82.0
试验18	3	3	2	1	2	3	1	82.3
均值1	84.933	91.050	86.983	87.817	87.250	87.900	87.833
均值2	93.500	86.117	88.150	87.567	87.833	88.333	87.533
均值3	84.233	85.500	87.533	87.283	87.583	86.433	87.300
极差	9.267	5.550	1.167	0.534	0.583	1.900	0.533

参数	因素
参数	1：超重力因子	2：气液比	3：吸收剂质量分数/%	4：温度/℃	5：主吸收剂质量分数/%	6	7	8：脱碳率/%
试验1	1	1	1	1	1	1	1	88.6
试验2	1	2	2	2	2	2	2	85.3
试验3	1	3	3	3	3	3	3	81.4
试验4	2	1	1	2	2	3	3	95.4
试验5	2	2	2	3	3	1	1	93.1
试验6	2	3	3	1	1	2	3	92.2
试验7	3	1	2	1	3	2	3	89.3
试验8	3	2	3	2	1	3	1	81.8
试验9	3	3	1	3	2	1	2	82.1
试验10	1	1	3	3	2	2	1	89.3
试验11	1	2	1	1	3	3	2	81.9
试验12	1	3	2	2	1	1	3	83.1
试验13	2	1	2	3	1	3	2	95.8
试验14	2	2	3	1	2	1	3	92.6
试验15	2	3	1	2	3	2	1	91.9
试验16	3	1	3	2	3	1	2	87.9
试验17	3	2	1	3	1	2	3	82.0
试验18	3	3	2	1	2	3	1	82.3
均值1	84.933	91.050	86.983	87.817	87.250	87.900	87.833
均值2	93.500	86.117	88.150	87.567	87.833	88.333	87.533
均值3	84.233	85.500	87.533	87.283	87.583	86.433	87.300
极差	9.267	5.550	1.167	0.534	0.583	1.900	0.533

因素	偏差平方和	自由度	F比	F临界值	显著性
超重力因子	319.498	2	50.094	6.940	**
气液比	111.041	2	17.410	6.940	*
吸收剂质量浓度	4.088	2	0.641	6.940
温度	0.854	2	0.134	6.940
主吸收剂含量	1.028	2	0.161	6.940
误差	12.76	4

因素	偏差平方和	自由度	F比	F临界值	显著性
超重力因子	319.498	2	50.094	6.940	**
气液比	111.041	2	17.410	6.940	*
吸收剂质量浓度	4.088	2	0.641	6.940
温度	0.854	2	0.134	6.940
主吸收剂含量	1.028	2	0.161	6.940
误差	12.76	4

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