Techno-economics of high ash coal gasification: A machine learning approach using CatBoost model

IF 9.7 1区 环境科学与生态学 Q1 ENGINEERING, ENVIRONMENTAL Journal of Cleaner Production Pub Date : 2024-11-08 DOI:10.1016/j.jclepro.2024.144160
Dharmendra Kumar Singh , Sandeep Kumar
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Abstract

This work explores the techno-economics of high ash coal gasification using circulating fluidized bed (CFB) gasifier technology at the Talaipalli Coal Mining Project, India being developed by NTPC Limited. The research employs the categorical boosting machine learning algorithm to predict syngas composition, yield, and lower heating value offering an innovative approach to optimize the gasification process. The work compares CFB gasification with conventional coal combustion and establishes it as the most suitable gasification technology due to its feedstock flexibility, technological maturity, and cost-effectiveness. A comprehensive financial analysis reveals a favorable net present value (NPV) of ₹ 20150 Million, an internal rate of return (IRR) of 9.54%, and a payback period of 8.3 years for a 65 MWth CFB gasifier. Sensitivity analysis highlights the influence of key factors such as syngas yield, capital costs, and selling price on financial viability. The environmental benefits, including reduced emissions and waste management, further underscore the value of coal gasification for sustainable energy production. This work aligns with government initiatives like the National Coal Gasification Mission, advocating future research in co-gasification and techno-economic assessments for similar projects.
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高灰份煤气化的技术经济学:使用 CatBoost 模型的机器学习方法
这项研究探讨了印度 NTPC 有限公司正在开发的 Talaipalli 煤矿项目中使用循环流化床 (CFB) 气化技术进行高灰份煤气化的技术经济学问题。该研究采用分类提升机器学习算法来预测合成气成分、产量和较低的热值,为优化气化过程提供了一种创新方法。该研究将 CFB 气化技术与传统燃煤技术进行了比较,并将其确定为最合适的气化技术,因为它具有原料灵活性、技术成熟性和成本效益。综合财务分析表明,65 兆瓦 CFB 气化炉的净现值(NPV)为 2.015 亿英镑,内部收益率(IRR)为 9.54%,投资回收期为 8.3 年。敏感性分析强调了合成气产量、资本成本和销售价格等关键因素对财务可行性的影响。包括减少排放和废物管理在内的环境效益进一步凸显了煤气化在可持续能源生产中的价值。这项工作与国家煤气化任务等政府倡议相一致,倡导未来对类似项目进行联合气化研究和技术经济评估。
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来源期刊
Journal of Cleaner Production
Journal of Cleaner Production 环境科学-工程:环境
CiteScore
20.40
自引率
9.00%
发文量
4720
审稿时长
111 days
期刊介绍: The Journal of Cleaner Production is an international, transdisciplinary journal that addresses and discusses theoretical and practical Cleaner Production, Environmental, and Sustainability issues. It aims to help societies become more sustainable by focusing on the concept of 'Cleaner Production', which aims at preventing waste production and increasing efficiencies in energy, water, resources, and human capital use. The journal serves as a platform for corporations, governments, education institutions, regions, and societies to engage in discussions and research related to Cleaner Production, environmental, and sustainability practices.
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