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Production of Hydrogen from Low Rank Coal Using Process Integration Framework between Syngas Production Processes: Techno-Economic Analysis
Chemical Engineering and Processing: Process Intensification ( IF 4.3 ) Pub Date : 2021-09-17 , DOI: 10.1016/j.cep.2021.108639
Usama Ahmed 1, 2 , Muhammad Arsalan Hussain 3 , Muhammad Bilal 3 , Hassan Zeb 3 , Nabeel Ahmad 4 , Nauman Ahmad 5 , Muhammad Usman 2
Affiliation  

An increase in energy demand in the recent decades have created energy shortages that can be fulfilled by the use of fossil fuels. Gasification and reforming techniques are effective methods for producing syngas and hydrogen from natural gas and coal. The two process models have been developed in this study, in which syngas and hydrogen is produced from coal and natural gas. The case 1 relies on the entrained flow gasification unit which is validated by literature data, and then integrated with the reforming process reforming to generate the case 2. The integrated gasifier and reforming model was created to increase H2 output while lowering the total carbon footprints. In case of 2nd model, the hydrogen to carbon monoxide ratio (HCR) is 1.20 which is almost 88% higher than the baseline. Due to the higher HCR in case 2, the overall production of H2 is 55% higher than the case 2. Moreover, the efficiency of case 2 is 18.5% higher which reduces the carbon emissions by 69.6% per unit of hydrogen production compared to case 1.Furthermore, the investment per ton of hydrogen production and hydrogen selling prices in Case 2 is 28.9% lower compared to the case 1 design.



中文翻译:

使用合成气生产过程之间的过程集成框架从低阶煤生产氢气:技术经济分析

近几十年来能源需求的增加造成了能源短缺,而这可以通过使用化石燃料来弥补。气化和重整技术是从天然气和煤生产合成气和氢气的有效方法。本研究开发了两种工艺模型,其中合成气和氢气由煤和天然气生产。案例1依赖于经文献数据验证的气流气化装置,然后结合重整过程重整生成案例2。创建集成气化炉和重整模型以增加H 2输出,同时降低总碳足迹. 在2的情况下,第二在模型中,氢气与一氧化碳的比率 (HCR) 为 1.20,比基线高出近 88%。由于案例 2 中更高的 HCR,H 2 的总产量比案例 2 高 55%。此外,案例 2 的效率高出 18.5%,与相比,每单位制氢减少了 69.6% 的碳排放。案例1.此外,案例2的每吨制氢投资和氢气销售价格比案例1设计低28.9%。

更新日期:2021-09-22
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