Abstract The elevated energy demands from past decades has created the energy gaps which can mainly be fulfilled through the consumption of natural fossil fuels but at the expense of increased greenhouse gas emissions. Therefore, the need of clean and sustainable options to meet energy gaps have increased significantly. Gasification and steam methane reforming are the efficient technologies which resourcefully produce the syngas and hydrogen from coal and natural gas, respectively. The syngas and hydrogen can be further utilized to generate power or other Fischer Tropsch chemicals. In this study, two process models are developed and technically compared to analyze the production capacity of syngas and hydrogen. First model is developed based on conventional entrained flow gasification process which is validated with data provided by DOE followed by its integration with the reforming process that leads to the second model. The integrated gasification and reforming process model is developed to maximize the hydrogen production while reducing the overall carbon dioxide emissions. Furthermore, the integrated model eradicates the possibility of reformer’s catalyst deactivation due to significant amount of H2S present in the coal derived syngas. It has been seen from results that updated model offers 37% increase in H2/CO ratio, 10% increase in cold gas efficiency (CGE), 25% increase in overall H2 production, and 13% reduction in CO2 emission per unit amount of hydrogen production compared to base case model. Furthermore, economic analysis indicated 8% reduction in cost for case 2 while presenting 7% enhanced hydrogen contents.

中文翻译：

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用于提高煤和天然气原料制氢潜力的工艺集成模型的技术经济评估

摘要 过去几十年不断增长的能源需求造成了能源缺口，这主要可以通过消耗天然化石燃料来满足，但以温室气体排放量增加为代价。因此，解决能源缺口的清洁和可持续选择的需求显着增加。气化和蒸汽甲烷重整是分别从煤和天然气资源化生产合成气和氢气的有效技术。合成气和氢气可进一步用于发电或其他费托化学品。在这项研究中，开发了两种工艺模型并在技术上进行了比较，以分析合成气和氢气的生产能力。第一个模型是基于传统的气流气化过程开发的，该过程使用 DOE 提供的数据进行验证，然后与导致第二个模型的重整过程集成。集成气化和重整工艺模型的开发旨在最大限度地提高氢气产量，同时减少总体二氧化碳排放量。此外，由于煤衍生的合成气中存在大量 H2S，集成模型消除了重整器催化剂失活的可能性。从结果可以看出，更新后的模型使 H2/CO 比提高了 37%，冷气效率 (CGE) 提高了 10%，H2 总产量提高了 25%，单位氢气的 CO2 排放量减少了 13%生产与基本案例模型相比。此外，