Integrated Process for Producing Glycolic Acid from Carbon Dioxide Capture Coupling Green Hydrogen

doi:10.3390/pr10081610

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	Integrated Process for Producing Glycolic Acid from Carbon Dioxide Capture Coupling Green Hydrogen
	Wang, Dongliang 1,2; Li, Jingwei 1; Meng, Wenliang 1; Wang, Jian 1; Wang, Ke 1; Zhou, Huairong 1,2; Yang, Yong 1,2; Fan, Zongliang 1,2; Fan, Xueying 3
刊名	PROCESSES
	2022-08-01
卷号	10 期号:8
关键词	CO2 capture renewable hydrogen glycolic acid synthesis process modeling process analysis
DOI	10.3390/pr10081610
英文摘要	A novel process path is proposed to produce glycolic acid (GA) from CO2 as the feedstock, including CO2 capture, power-to-hydrogen, CO2 hydrogenation to methanol, methanol oxidation to formaldehyde, and formaldehyde carbonylation units. The bottlenecks are discussed from the perspectives of carbon utilization, CO2 emissions, total site energy integration, and techno-economic analysis. The carbon utilization ratio of the process is 82.5%, and the CO2 capture unit has the largest percentage of discharge in carbon utilization. Among the indirect emissions of each unit, the CO2 hydrogenation to methanol has the largest proportion of indirect carbon emissions, followed by the formaldehyde carbonylation to glycolic acid and the CO2 capture. After total site energy integration, the utility consumption is 1102.89 MW for cold utility, 409.67 MW for heat utility, and 45.98 MW for power. The CO2 hydrogenation to methanol makes the largest contribution to utility consumption due to the multi-stage compression of raw hydrogen and the distillation of crude methanol. The unit production cost is 834.75 $/t-GA; CO2 hydrogenation to methanol accounts for the largest proportion, at 70.8% of the total production cost. The total production cost of the unit depends on the price of hydrogen due to the currently high renewable energy cost. This study focuses on the capture and conversion of CO2 emitted from coal-fired power plants, which provides a path to a feasible low-carbon and clean use of CO2 resources.
WOS研究方向	Engineering
语种	英语
出版者	MDPI
WOS记录号	WOS:000845773900001
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/159831]
专题	石油化工学院土木工程学院
作者单位	1.Lanzhou Univ Technol, Sch Petrochem Engn, Lanzhou 730050, Peoples R China; 2.Key Lab Low Carbon Energy & Chem Engn Gansu Prov, Lanzhou 730050, Peoples R China; 3.Automat Inst Lanzhou Petrochem Co, Lanzhou 730050, Peoples R China
推荐引用方式 GB/T 7714	Wang, Dongliang,Li, Jingwei,Meng, Wenliang,et al. Integrated Process for Producing Glycolic Acid from Carbon Dioxide Capture Coupling Green Hydrogen[J]. PROCESSES,2022,10(8).
APA	Wang, Dongliang.,Li, Jingwei.,Meng, Wenliang.,Wang, Jian.,Wang, Ke.,...&Fan, Xueying.(2022).Integrated Process for Producing Glycolic Acid from Carbon Dioxide Capture Coupling Green Hydrogen.PROCESSES,10(8).
MLA	Wang, Dongliang,et al."Integrated Process for Producing Glycolic Acid from Carbon Dioxide Capture Coupling Green Hydrogen".PROCESSES 10.8(2022).