Green impacts of transforming green electricity into microwave for ammonia and urea production

IF 3.5 3区工程技术 Q2 ENGINEERING, CHEMICAL

AIChE Journal Pub Date : 2025-02-03 DOI:10.1002/aic.18743

Peng Jiang, Chenhan Wang, Lin Li, Tuo Ji, Liwen Mu, Xiaohua Lu, Jiahua Zhu

{"title":"Green impacts of transforming green electricity into microwave for ammonia and urea production","authors":"Peng Jiang, Chenhan Wang, Lin Li, Tuo Ji, Liwen Mu, Xiaohua Lu, Jiahua Zhu","doi":"10.1002/aic.18743","DOIUrl":null,"url":null,"abstract":"Green NH3 production is challenged by high energy consumption, costs, and low yields. Here, we proposed a new green NH3 process utilizing microwave (MW)-driven N2 transformations (GreenE+MW). This process integrates water electrolysis, air separation, MW-assisted NH3 synthesis, and NH3 separation. For comparison, a green NH3 process using the Haber–Bosch technology (GreenE+HB) was established, and the energy, economic, and environmental impacts were evaluated. The GreenE+MW process increased NH3 yield by 25.14% and reduced energy consumption by 20.69% compared to the GreenE+HB process. Furthermore, it demonstrated notable advantages in cost and carbon footprint, with green NH3 production costs potentially reduced to 326.84 USD/tNH3 at electricity price of 0.02 USD/kWh. Based on which, a green urea process was proposed, achieving an 85% reduction in carbon emissions (0.128 kgCO2e/kgUrea) compared to conventional methods. This work offers a unique electrification technology to reconstruct the industrial NH3 and urea production processes with a lower carbon footprint.","PeriodicalId":120,"journal":{"name":"AIChE Journal","volume":"24 1","pages":""},"PeriodicalIF":3.5000,"publicationDate":"2025-02-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"AIChE Journal","FirstCategoryId":"5","ListUrlMain":"https://doi.org/10.1002/aic.18743","RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ENGINEERING, CHEMICAL","Score":null,"Total":0}

引用次数: 0

Abstract

Green NH₃ production is challenged by high energy consumption, costs, and low yields. Here, we proposed a new green NH₃ process utilizing microwave (MW)-driven N₂ transformations (GreenE+MW). This process integrates water electrolysis, air separation, MW-assisted NH₃ synthesis, and NH₃ separation. For comparison, a green NH₃ process using the Haber–Bosch technology (GreenE+HB) was established, and the energy, economic, and environmental impacts were evaluated. The GreenE+MW process increased NH₃ yield by 25.14% and reduced energy consumption by 20.69% compared to the GreenE+HB process. Furthermore, it demonstrated notable advantages in cost and carbon footprint, with green NH₃ production costs potentially reduced to 326.84 USD/tNH₃ at electricity price of 0.02 USD/kWh. Based on which, a green urea process was proposed, achieving an 85% reduction in carbon emissions (0.128 kgCO₂e/kgUrea) compared to conventional methods. This work offers a unique electrification technology to reconstruct the industrial NH₃ and urea production processes with a lower carbon footprint.

查看原文本刊更多论文

求助全文

约1分钟内获得全文求助全文

来源期刊

AIChE Journal 工程技术-工程：化工

CiteScore

7.10

自引率

10.80%

发文量

411

审稿时长

3.6 months

期刊介绍： The AIChE Journal is the premier research monthly in chemical engineering and related fields. This peer-reviewed and broad-based journal reports on the most important and latest technological advances in core areas of chemical engineering as well as in other relevant engineering disciplines. To keep abreast with the progressive outlook of the profession, the Journal has been expanding the scope of its editorial contents to include such fast developing areas as biotechnology, electrochemical engineering, and environmental engineering. The AIChE Journal is indeed the global communications vehicle for the world-renowned researchers to exchange top-notch research findings with one another. Subscribing to the AIChE Journal is like having immediate access to nine topical journals in the field. Articles are categorized according to the following topical areas: Biomolecular Engineering, Bioengineering, Biochemicals, Biofuels, and Food Inorganic Materials: Synthesis and Processing Particle Technology and Fluidization Process Systems Engineering Reaction Engineering, Kinetics and Catalysis Separations: Materials, Devices and Processes Soft Materials: Synthesis, Processing and Products Thermodynamics and Molecular-Scale Phenomena Transport Phenomena and Fluid Mechanics.