NGHIÊN CỨU, PHÂN TÍCH, ĐÁNH GIÁ SƠ BỘ HIỆU QUẢ ĐỐT KÈM KHÍ LNG VỚI HYDRO CHO NHÀ MÁY NHIỆT ĐIỆN KHÍ LNG CÔNG SUẤT ĐIỂN HÌNH 1500MW TẠI VIỆT NAM=STUDY, ANALYSIS, AND PRELIMINARY EVALUATION OF THE EFFECTIVENESS OF CO-FIRING LNG WITH HYDROGEN FOR A TYPICAL 1500MW LNG-FIRED THERMAL POWER PLANT IN VIETNAM

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Tác giả: Ngọc Dương Đoàn, Chiến Thắng Nguyễn, Thị Minh Nguyễn, Văn Thạo Nguyễn, Thị Thu Phương Trương, Văn Nam Vũ

Ngôn ngữ: vie

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Thông tin xuất bản: Tạp chí Khoa học và Công nghệ Năng lượng, 2024

Mô tả vật lý: tr.98

Bộ sưu tập: Metadata

ID: 485974

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At the 26th United Nations Climate Change Conference (COP26), Vietnam committed to achieving net-zero emissions by 2050. Accordingly, Decision No. 500/QD oriented that by 2050, LNG-fuelled plants will gradually switch to using hydrogen, with a total capacity of 25,400 MW, producing 129.6-136.7 billion kWh, specifically: 7,030 MW of domestic gas power plants will switch to running entirely on hydrogen
4,500-9,000 MW of LNG power plants will co-fire LNG and hydrogen
16,400-20,900 MW of LNG power plant will switch to running entirely on hydrogen. Domestic gas/LNG and hydrogen co-firing technology is a potential path to decarbonize domestic gas/LNG power plants by replacing domestic gas/LNG fuel with a green hydrogen fuel source without CO2 emissions. At the present, the cost of green hydrogen production is relatively high (about 6 - 8 USD/kg). However, according to forecasts of international organizations, the cost of green hydrogen production can be reduced to less than 3 USD/kg in 2030 and less than 2 USD/kg in 2050. To evaluate the effectiveness of co-firing LNG with green hydrogen, in this article the authors have researched, analyzed and evaluated the preliminary effectiveness of co-firing LNG with hydrogen for a typical 1500 MW thermal power plant in Vietnam in some scenarios of green hydrogen price and mixing ratio. Research results show that in the case that the price of green hydrogen falls below 3 USD/kg and gas turbine technology capable of co-firing hydrogen is commercialized, the electricity price when co-firing hydrogen with the ratio up to 100% can be accepted by the power system.Tại Hội nghị thượng đỉnh về biến đổi khí hậu của Liên Hợp Quốc lần thứ 26 (COP26), Việt Nam đã cam kết sẽ đạt mức phát thải ròng bằng “0” vào năm 2050. Theo đó, tại Quyết định số 500/QĐ-TTg đến năm 2050, các nhà máy sử dụng LNG chuyển dần sang sử dụng hydro, tổng công suất 25.400 MW, sản xuất 129,6-136,7 tỷ kWh, cụ thể: Nhiệt điện khí trong nước chuyển chạy hoàn toàn bằng hydro 7.030 MW
Nhiệt điện LNG đốt kèm hydro 4.500-9.000 MW
Nhiệt điện LNG chuyển chạy hoàn toàn bằng hydro 16.400-20.900 MW. Công nghệ đốt kèm khí/LNG với hydro là một con đường tiềm năng để khử các bon trong các nhà máy nhiệt điện khí/LNG bằng cách thay thế nhiên liệu khí/LNG bằng nguồn nhiên liệu hydro xanh không có phát thải CO2. Tại thời điểm hiện tại, chi phí sản xuất hydro xanh có giá tương đối cao (khoảng 6 - 8 USD/kg), tuy nhiên theo các tổ chức quốc tế dự báo chi phí sản xuất hydro xanh có thể giảm xuống dưới 3 USD/kg vào năm 2030 và dưới 2 USD/kg vào năm 2050. Để đánh giá hiệu quả khi đốt kèm khí LNG với hydro xanh, trong bài báo này nhóm tác giả đã nghiên cứu, phân tích và đánh giá giá sơ bộ hiệu quả đốt kèm khí LNG với hydro cho nhà máy nhiệt điện công suất điển hình 1500 MW tại Việt Nam cho các kịch bản tỷ lệ trộn và giá hydro xanh. Kết quả nghiên cứu cho thấy khi giá hydro xanh giảm xuống dưới 3 USD/kg và công nghệ tuabin khí đốt kèm hydro được thương mại hóa, khi đốt kèm hydro tỷ lệ đến 100% giá điện có thể chấp nhận được bởi hệ thống điện.

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