Abstract

The increase in greenhouse gas emissions, mainly CO₂ is one of the current concerns. Agri-municipal solid waste (MSW) based biomass is a promising eco-friendly alternative source of renewable energy to mitigate the twin problems of fossil fuel depletion and environmental degradation due to CO₂ emissions. An integration of mixed fuel-based (coal+biomass) power generation with algal CO₂ capture is expected to reduce the CO₂ emission. In addition algal biomass, a rich resource of fuel and biochemicals, is produced. This article focuses on the analysis of energy and environmental performance of an integrated system of 30 TPD integrated gasification combined cycle (IGCC) power plant, co-fired with Indian coal and Agri-MSW, and microalgal CO₂ capture (70%) unit using three algal strains, namely, Chlorella Vulgaris, Nannochloropsis spp and Scenedesmus spp. The analyses have been performed considering the use of (a) in-house power and (b) grid power for the algal unit individually using Chlorella Vulgaris, Nannochloropsis spp and Scenedesmus using ASPEN Plus modelling. It is expected that the results of the analysis will be helpful in designing an integrated system of coal-biomass based IGCC power plants with algal CO₂ capture units using different varieties of biomass and algal strains.

中文翻译：

---

能源和环境分析：印度基于煤炭和生物质的 IGCC 发电厂与微藻二氧化碳捕获相结合

摘要

_{温室气体排放（主要是CO 2 ）}的增加是当前关注的问题之一。基于农业城市固体废物（MSW）的生物质是一种有前景的生态友好的可再生能源替代来源，可以缓解化石燃料枯竭和由于CO ₂排放导致的环境退化的双重问题。混合燃料发电（煤+生物质）与藻类CO ₂捕获的结合预计将减少CO ₂排放。此外，还生产藻类生物质，这是一种丰富的燃料和生物化学品资源。本文重点分析了 30 TPD 整体气化联合循环 (IGCC) 发电厂的综合系统的能源和环境绩效，该发电厂与印度煤炭和农业城市固体废弃物共燃，并采用微藻 CO 2 捕集 ( ₇₀ %) 装置。三种藻类菌株，即小球藻、微拟球藻属和栅藻属。使用 ASPEN Plus 建模，分别使用普通小球藻、微绿球藻和栅藻，考虑对藻类单元使用 (a) 内部电源和 (b) 电网电源进行分析。预计分析结果将有助于设计基于煤-生物质的IGCC发电厂的集成系统，该发电厂具有使用不同品种的生物质和藻类的藻类CO _{2捕获单元。}