【摘要】 煤炭制氢是我国当前最主要的低成本制氢方式,但制氢过程伴有大量的CO₂排放,不符合低碳发展要求,需要和碳捕集与封存（CCS）技术结合。本文评估了结合CCS技术的煤炭制氢碳足迹和成本,发现:煤炭制氢结合CCS技术后,碳足迹由22.66 kg CO2_当量（eq）/kg H₂下降至10.52 kg CO₂eq/kg H₂,同时制氢成本增加49.80%,达到了14.01元/kg H₂,但相比其他制氢技术仍具有成本优势。因此,我国在中短期氢气产业发展规划中,要推行煤炭制氢结合CCS技术,实现其低碳发展;在长期规划中,应将其定位成过渡性制氢技术,推动氢气供给结构向更加低碳的方向调整,以支撑2060年"碳中和"目标的顺利实现。更多还原

【Abstract】 Coal-based hydrogen production technology is currently the most important low-cost hydrogen production method in China, but the hydrogen production process is accompanied by a large amount of CO₂ emissions, which does not meet the requirements of low-carbon development, and needs to be combined with carbon capture and storage（CCS） technology. This paper evaluates the carbon footprint and cost of coal-based hydrogen production combined with CCS. It finds that after combining CCS with coal-based hydrogen production, the carbon footprint decreases from 22.66 kg CO₂ eq/kg H₂ to 10.52 kg CO₂ eq/kg H₂. Meanwhile, the cost of hydrogen production increases by 49.80% to 14.01 yuan/kg H₂, but it still has cost advantages compared with other hydrogen production technologies. Therefore, in China’s short-and medium-term hydrogen industry development plan, coal-based hydrogen production combined with CCS technology should be promoted to achieve its low carbon development; in the long-term plan, it should be positioned as a transitional hydrogen production technology to promote the adjustment of hydrogen supply structure to a lower carbon direction, so as to support the smooth realization of the goal of "carbon neutralization" by 2060.更多还原