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Process simulation of mineral carbonation of phosphogypsum with ammonia under increased CO2 pressure
Bao, Weijun1,2; Zhao, Hongtao1,3,4; Li, Huiquan1,2,4; Li, Songgeng3,4; Lin, Weigang3,4
2017
发表期刊JOURNAL OF CO2 UTILIZATION
ISSN2212-9820
卷号17页码:125-136
摘要The mineral carbonation of phosphogypsum offers many advantages in sequestering CO2, solving the pollution problem of phosphogypsum stacking, and manufacturing high value-added chemical products with low energy consumption and cost. Using the Aspen Plus process simulation software, this work simulates a novel process for the mineral carbonation of phosphogypsum with ammonia under increased CO2 pressure. This process is divided into five sections, namely, pre-carbonation, enhanced carbonation, flash separation, gas phase absorption, and (NH4)(2)SO4 fertilizer production. With its large-scale application, this new process allows the sensitivity analysis of many operation conditions, identifies the optimal conditions for reducing the ammonia and energy consumption of (NH4)(2)SO4 fertilizer production, and achieves a high carbonation conversion with a fast reaction rate. The optimal conditions (6 bar enhanced carbonation pressure, 1 bar flash pressure, 38 degrees C ammonia absorption solution temperature, 1.05 ammonia excess ratio, 1.024 CO2 excess ratio, and 0.94 mass ratio of water to gypsum) yield the highest carbonation conversion, ammonia utilization ratio, and enhanced carbonation temperature of 99.9%, 95.2%, and 138.5 degrees C, respectively, all of which can help achieve a fast carbonation reaction rate. (C) 2016 Elsevier Ltd. All rights reserved.
关键词Carbon Dioxide Phosphogypsum Ammonia Mineral Carbonation Process Simulation
文章类型Article
WOS标题词Science & Technology ; Physical Sciences ; Technology
DOI10.1016/j.jcou.2016.11.012
收录类别SCI
语种英语
关键词[WOS]GAS DESULFURIZATION GYPSUM ; PURE CALCIUM-CARBONATE ; DIRECT AQUEOUS CARBONATION ; RED GYPSUM ; SEQUESTRATION ; PRECIPITATION ; CAPTURE ; SYSTEM ; EQUILIBRIA ; PRODUCTS
WOS研究方向Chemistry ; Engineering
WOS类目Chemistry, Multidisciplinary ; Engineering, Chemical
项目资助者National Natural Science Foundation of China(21300212) ; 12th Five-Year Plan of National Science and Technology Support(2013BAC12B02)
WOS记录号WOS:000393928500015
引用统计
被引频次:4[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ipe.ac.cn/handle/122111/21948
专题多相复杂系统国家重点实验室
作者单位1.Chinese Acad Sci, Inst Proc Engn, Key Lab Green Proc & Engn, Beijing 100080, Peoples R China
2.Chinese Acad Sci, Inst Proc Engn, Natl Engn Lab Hydromet Cleaner Prod Technol, Beijing 100080, Peoples R China
3.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100080, Peoples R China
4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
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Bao, Weijun,Zhao, Hongtao,Li, Huiquan,et al. Process simulation of mineral carbonation of phosphogypsum with ammonia under increased CO2 pressure[J]. JOURNAL OF CO2 UTILIZATION,2017,17:125-136.
APA Bao, Weijun,Zhao, Hongtao,Li, Huiquan,Li, Songgeng,&Lin, Weigang.(2017).Process simulation of mineral carbonation of phosphogypsum with ammonia under increased CO2 pressure.JOURNAL OF CO2 UTILIZATION,17,125-136.
MLA Bao, Weijun,et al."Process simulation of mineral carbonation of phosphogypsum with ammonia under increased CO2 pressure".JOURNAL OF CO2 UTILIZATION 17(2017):125-136.
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