快速制备粉状活性焦烟气脱硫系统的数值研究

doi:10.3976/j.issn.1002-4026.2021.05.011

Abstract

Abstract: Numerical simulation of a flue gas desulfurization (FGD) system using rapid preparation amorphous powder activated coke (RAC) as the desulfurizer was conducted using ASPEN Plus. The existing coking model for RAC and the desulfurization model were used in the simulation. For the design conditions, the components of three key gas flows were collected, and the mass conservation and element balance of the proposed system were calculated and confirmed. The mass enthalpy and heat flow distribution were also described in detail to verify the energy conservation. For the ultra-low emission conditions, the effects of key parameters on the C-coal consumption, the recovered sulfur, and coke deposit amount in the fluidized desulfurization bed were calculated and discussed in detail.

Key words: flue gas desulfurization, rapid preparation, amorphous powder activated coke, sulfur recovery, ultra-low emission

CLC Number:

ZHOU Xin-pei, CHEN Wei, HE Yan. Numerical study of the flue gas desulfurization system using rapid preparation amorphous powder activated coke as desulfurizer[J].Shandong Science, 2021, 34(5): 86-96.

References 24

1	XIONG Y Y, NIU Y Q, TAN H Z, et al. Experimental study of a zero water consumption wet FGD system[J]. Applied Thermal Engineering, 2014, 63(1): 272-277. doi: 10.1016/j.applthermaleng.2013.10.047
2	CORDOBA P. Status of flue gas desulphurisation (FGD) systems from coal-fired power plants: overview of the physic-chemical control processes of wet limestone FGDs[J]. Fuel, 2015, 144: 274-286. doi: 10.1016/j.fuel.2014.12.065
3	OZDEMIR K, SERINCAN M F. A computational fluid dynamics model of a rotary regenerative heat exchanger in a flue gas desulfurization system[J]. Applied Thermal Engineering, 2018, 143: 988-1002. doi: 10.1016/j.applthermaleng.2018.08.011
4	CORDOBA P, AYORA C, MORENO N, et al. Influence of an aluminium additive in aqueous and solid speciation of elements in flue gas desulphurisation (FGD) system[J]. Energy, 2013, 50: 438-444. doi: 10.1016/j.energy.2012.11.020
5	GUTIERREZ ORTIZ F J. A simple realistic modeling of full-scale wet limestone FGD units[J]. Chemical Engineering Journal, 2010, 165(2): 426-439. doi: 10.1016/j.cej.2010.09.016
6	钟秦. 湿法烟气脱硫的理论和实验研究(Ⅰ)：湿壁塔脱硫反应系统及操作特性[J]. 南京理工大学学报, 1998，22（6）：517-525. doi: 10.14177/j.cnki.32-1397n.1998.06.010
7	HEIDEL B, ROGGE T, SCHEFFKNECHT G. Controlled desorption of mercury in wet FGD waste water treatment[J]. Applied Energy, 2016, 162: 1211-1217. doi: 10.1016/j.apenergy.2015.05.016
8	ZHENG Y J, KIIL S, JOHNSSON J E, et al. Use of spray dry absorption product in wet flue gas desulphurisation plants: Pilot-scale experiments[J]. Fuel, 2002, 81(15): 1899-1905. doi: 10.1016/S0016-2361(02)00133-3
9	WANG F, WANG H M, ZHANG F, et al. SO2/Hg removal from flue gas by dry FGD[J]. International Journal of Mining Science and Technology, 2012, 22(1), 22: 107-110. doi: 10.1016/j.ijmst.2011.06.011
10	WANG E G, GUO H X. Kinetic behavior of fixed bed desulfurization using metal oxide[J]. J Chem Ind Eng, 1997, 48:94-101.
11	ALE EBRAHIM H. Application of random-pore model to SO2 capture by lime[J]. Industrial & Engineering Chemistry Research, 2010, 49(1): 117-122. doi: 10.1021/ie901077b
12	MOCHIDA I, KURODA K, KAWANO S, et al. Kinetic study of the continuous removal of SOx using polyacrylonitrile-based activated carbon fibres: 2. Kinetic model[J]. Fuel, 1997, 76(6): 537-541. doi: 10.1016/S0016-2361(97)00020-3
13	DAVYDOV A, CHUANG K T, SANGER A R. Mechanism of H2S oxidation by ferric oxide and hydroxide surfaces[J]. The Journal of Physical Chemistry B, 1998, 102(24): 4745-4752. doi: 10.1021/jp980361p
14	BAHRAMI R, ALE EBRAHIM H, HALLADJ R. Application of random pore model for SO2 removal reaction by CuO[J]. Process Safety and Environmental Protection, 2014, 92(6): 938-947. doi: 10.1016/j.psep.2013.11.002
15	ZHANG J, YOU C F, ZHAO S W, et al. Characteristics and reactivity of rapidly hydrated sorbent for semidry flue gas desulfurization[J]. Environmental Science & Technology, 2008, 42(5): 1705-1710. doi: 10.1021/es702208e
16	ABDULRASHEED A A, JALIL A A, TRIWAHYONO S, et al. Surface modification of activated carbon for adsorption of SO2 and NOx: a review of existing and emerging technologies[J]. Renewable and Sustainable Energy Reviews, 2018, 94: 1067-1085. doi: 10.1016/j.rser.2018.07.011
17	马春元，张振，王涛，等. 一种利用煤粉快速制备脱硫用粉末状活性焦的工艺及装置:CN,201310176387.1 [P]. 2013-05-13.
18	刘珂. 煤粉快速热解制备粉状活性焦及副产热解气的实验研究[D]. 济南: 山东大学, 2017.
19	ZHANG Z, WANG T, KE L, et al. Powder-activated semicokes prepared from coal fast pyrolysis: influence of oxygen and steam atmosphere on pore structure[J]. Energy & Fuels, 2016, 30(2): 896-903. doi: 10.1021/acs.energyfuels.5b02488
20	蔡连国, 刘文钊, 余剑, 等. 煤程序升温与等温热解特性及动力学比较研究[J]. 煤炭转化, 2012,35(3), 35: 6-14. doi: 10.3969/j.issn.1004-4248.2012.03.002
21	张立强, 蒋海涛, 李兵, 等. 粉状活性炭流化床吸附SO2的实验研究及吸附动力学分析[J]. 煤炭学报, 2012,37(6), 37: 1046-1050. doi: 10.13225/j.cnki.jccs.2012.06.007
22	李兵. 粉末活性炭循环流化床吸附脱除烟气中SO2的实验研究[D]. 济南: 山东大学, 2012.
23	范燕荣. 燃料型还原气脱硝反应特性研究[D]. 济南: 山东大学, 2015.
24	环境保护部，国家质量监督检验检疫总局.火电厂大气污染物排放标准：GB13223—2011［S］.北京：中国环境出版社，2011.

Numerical study of the flue gas desulfurization system using rapid preparation amorphous powder activated coke as desulfurizer

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