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LNG接收站低碳化改造措施及其经济性影响分析

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为了探究我国LNG接收站低碳化改造的途径,系统分析了节能减排、外购绿电和可再生能源替代三种技术措施.通过对我国某沿海LNG接收站实例分析,设计了三种低碳化实现方案,即完全外购绿电、完全增加可再生能源设施、部分外购绿电+部分增加可再生能源设施,并分析了上述三种方案对该LNG接收站的经济性影响.研究结果表明:①基于目前的技术发展水平,LNG接收站可以通过优化气态外输模式、优化液态外输模式和主要耗能设备采用变频技术等节能措施实现节能降耗,同时也可以采用低碳火炬、甲烷回收及新能源车辆替代等实现降碳;②LNG接收站采用外购绿电也可以实现低碳化改造,并且该方案对接收站项目的经济性影响最小;③若采用可再生能源替代,改造后该LNG接收站虽然在运营期间燃料动力费用大幅下降,但LNG加工费与全部外购绿电相比较升高9%,至0.2291元/m3.
Low-carbon transformation measures for LNG terminals and their economic control
In this study,three measures including energy saving and emission reduction,imported green electricity and re-newable energy substitution were discussed in order to probe into low-carbon transformation ways for most LNG terminals in China.Then,taken one coastal LNG terminal as an example,three low-carbon schemes were set up,including complete-ly imported green electricity,completely increasing renewable energy facilities,and partially imported electricity + partially increasing facilities.Finally,the impact of these three schemes on this terminal was investigated thoroughly from aspect of economy.Results show that(ⅰ)based on current technologies,LNG terminals can achieve energy saving and consumption reduction by optimizing gas-and liquid-transported modes or using some energy-consuming equipment with frequency con-verters.Meanwhile,they can also achieve carbon reduction by using low-carbon torches,methane recovery and new energy vehicles;(ⅱ)the terminals can obtain the low-carbon transformation through the imported electricity,which exerts the mini-mum economic influence on terminal projects;and(ⅲ)if renewable energy is used as the substitute for the transformed ter-minals,both fuel and power costs will decrease significantly.However,compared with the other scheme of completely im-ported electricity,LNG-processing costs will be 9%higher,attaining 0.2291 yuan/m3.

LNG terminalLow-carbon transformationMulti-energy complementationRenewable energyEconomic im-pact

谢旭光、孙楠

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中海石油气电集团有限责任公司,北京 100028

LNG接收站 低碳化改造 多能互补 可再生能源 经济性影响

中国海油气电集团有限责任公司科研基金

QD-KY-2023-YFZX-06

2024

天然气技术与经济
中国石油西南油气田公司

天然气技术与经济

影响因子:0.459
ISSN:2095-1132
年,卷(期):2024.18(1)
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