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每產生1度氫電排放多少CO2?
• 1公斤的氫氣=12m3 氫氣x 0.0838 (氫氣密度)
• 由甲醇水產氫,到燃料電池發電,發電效率約30%,熱水效率約50%。
• 1公斤氫氣產生多少度的電?
• 1公斤的氫氣有12m3,每一m3可產生1.2度電,所以1公斤氫氣可產生14.4 (1.2 *
12)度電,發電同時有24度的熱可以回收(14.4/30%*50%),相當生產38.4度電
• 產生1公斤氫氣釋放11.15公斤CO2 ((8.11*44 g/mol CO2) /32 g/mol CH3OH)=11.15kg CO2)
• 1m3氫氣生產,需要甲醇0.676kg (1kgH2 需要0.676*12=8.11kg甲醇)
• 所以1度電的CO2排放量=11.15/(14.4+24)=0.29公斤
台電目前一度電排放0.51kg CO2
甲醇水產氫和電解水產氫的較
• 電解水產氫, 一般需用4.5~5度電產生1 度
的氫電
• SRR方式產氫
• 產氫設備用電:0.05度/M3 H2
• 加上用0.56公斤甲醇產生一度氫電(0.676/1.2), 1度氫
電CO2排放量=11.15/14.4=0.77kgCO2
• If 台電1度電排放0.51公斤CO2,
• 相當於0.77kgCO2 排放相當於1.52度台電電的排放
• Output: 用(0.05+1.52)電可產生1度的氫電+
(24/14.4=1.66) 度熱能
電解水產氫 SRR產氫
耗電 4.5~5 1.57
效能 1度氫電
1度氫電
1.66度熱能

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B 每產生1度氫電排放多少.pptx

  • 1. 每產生1度氫電排放多少CO2? • 1公斤的氫氣=12m3 氫氣x 0.0838 (氫氣密度) • 由甲醇水產氫,到燃料電池發電,發電效率約30%,熱水效率約50%。 • 1公斤氫氣產生多少度的電? • 1公斤的氫氣有12m3,每一m3可產生1.2度電,所以1公斤氫氣可產生14.4 (1.2 * 12)度電,發電同時有24度的熱可以回收(14.4/30%*50%),相當生產38.4度電 • 產生1公斤氫氣釋放11.15公斤CO2 ((8.11*44 g/mol CO2) /32 g/mol CH3OH)=11.15kg CO2) • 1m3氫氣生產,需要甲醇0.676kg (1kgH2 需要0.676*12=8.11kg甲醇) • 所以1度電的CO2排放量=11.15/(14.4+24)=0.29公斤 台電目前一度電排放0.51kg CO2
  • 2. 甲醇水產氫和電解水產氫的較 • 電解水產氫, 一般需用4.5~5度電產生1 度 的氫電 • SRR方式產氫 • 產氫設備用電:0.05度/M3 H2 • 加上用0.56公斤甲醇產生一度氫電(0.676/1.2), 1度氫 電CO2排放量=11.15/14.4=0.77kgCO2 • If 台電1度電排放0.51公斤CO2, • 相當於0.77kgCO2 排放相當於1.52度台電電的排放 • Output: 用(0.05+1.52)電可產生1度的氫電+ (24/14.4=1.66) 度熱能 電解水產氫 SRR產氫 耗電 4.5~5 1.57 效能 1度氫電 1度氫電 1.66度熱能