| 摘要: |
| 目的 天然气掺氢技术已成为氢能与天然气融合发展的纽带，但目前建设的天然气掺氢项目以技术验证为主，均不具备经济性。需要构建天然气掺氢项目经济性评价模型，以明确项目经济性。方法 构建了基于天然气掺氢项目技术路线的经济投入-产出生命周期评价模型，开展了天然气掺氢项目的经济性关键影响因素分析。结果 掺氢天然气计量方式与天然气购气价格是影响项目经济性的主要因素。体积计量下，掺氢体积比为10%、氢气价格为1.6元/m3时，项目内部收益率（IRR）为5.24%；天然气购气价格上涨5%，项目收益率增加12.76个百分点。能量计量下，氢气价格低于0.49元/m3时项目才具备经济性；天然气购气价格上涨5%，项目收益率上涨1.06个百分点。结论 掺氢天然气计量方式对项目经济性影响较大，体积计量下，天然气掺氢项目已具备较好的经济性。能量计量下，建议在天然气门站价格较高的地区率先开展应用。 |
| 关键词: 天然气掺氢 生命周期 经济性分析 计量方式 |
| DOI：10.3969/j.issn.1007-3426.2024.06.010 |
| 分类号: |
| 基金项目:国家重点研发计划“氢能技术”重点专项“纯氢与天然气掺氢长输管道输送及应用关键技术”（2022YFB4003400）；国家电力投资集团有限公司B1类科研项目“天然气管道长距离掺氢输送与终端应用关键技术研究”（KYB12022QN02） |
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| Economic analysis of natural gas blending with hydrogen projects based on the life cycle model |
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ZHANG Wei1, ZHENG Wei2, SUN Chen1, ZHANG Yue1, LYU Liangliang2, CUI Chong1
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1.State Power Investment Group Science and Technology Research Institute Co., Ltd., Beijing, China;2.Inner Mongolia Huomei Hongjun Aluminum and Electric Co., Ltd. Zhahanaoer Branch, Tongliao, Inner Mongolia, China
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| Abstract: |
| Objectives Natural gas blending with hydrogen technology has become a link for the integrated development of hydrogen energy and natural gas. However, the currently constructed natural gas blending with hydrogen projects are primarily focused on technical verification and do not possess economics. It is necessary to build an economic evaluation model for the natural gas blending with hydrogen projects to clarify its economics. Methods An economic input-output life cycle assessment model based on the technical route of natural gas blending with hydrogen projects was constructed, and the analyses of key economic influencing factors for natural gas blending with hydrogen projects were conducted. Results The measurement method of hydrogen-blended natural gas and the purchase price of natural gas were the main factors affecting project economics. Under volume measurement, when the hydrogen blending volume ratio was 10% and the hydrogen price was 1.6 yuan/m3, the internal rate of return (IRR) of the project was 5.24%. If the purchase price of natural gas increased by 5%, the project's return rate increased by 12.76 percentage points. Under energy measurement, the project was only economically viable when the hydrogen price was below 0.49 yuan/m3. If the purchase price of natural gas increased by 5%, the project's return rate increased by 1.06 percentage points. Conclusions The measurement method of hydrogen-blended natural gas has a significant impact on project economics. Under volume measurement, natural gas blending with hydrogen projects already exhibit good economics. Under energy measurement, it is recommended to prioritize the implementation of this technology in regions with higher natural gas gate station prices. |
| Key words: natural gas blending with hydrogen life cycle economic analysis measurement method |
