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Life Cycle Assessment 生命週期評估

Life Cycle Assessment 生命週期評估. 福島康裕　助理教授 國立成功大學環境工程學系. Thanks to Prof. Matsuno at The University of Tokyo. Exercise 1. LCI of Heavy oil used in oil-firing power plant in Japan. Heavy oil. Oil well drilling. Transportation. Refining. ①. ②. ③. Saudi Arabia. Oil-firing power plant.

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Life Cycle Assessment 生命週期評估

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  1. Life Cycle Assessment生命週期評估 福島康裕　助理教授 國立成功大學環境工程學系 Thanks to Prof. Matsuno at The University of Tokyo

  2. Exercise 1 • LCI of Heavy oil used in oil-firing power plant in Japan Heavy oil Oil well drilling Transportation Refining ① ② ③ Saudi Arabia Oil-firing power plant Japan

  3. Exercise 1 : Images of processes

  4. Question 1-1 • How much are the CO2, NOx, and SOx emission induced by a production of1 kl of petroleum? Underground petroleum Petroleum 1 kl Internally consumed fuel gas： 11 m3 Flare gas： 7.9 m3 ① Oil well drilling

  5. Question 1-2 • How much are the CO2, NOx, and SOx emission directly induced by transportation of 1 kl of petroleum from Saudi-Arabia to Japan? Petroleum atport: 1kl Petroleum (Japan) : 1 kl Heavy oil A： 0.27 kg Note: We consider the indirect emission that occurs in the production of heavy oil later, so we don’t calculate it here. Heavy oil C： 9.4 kg ②Transportation

  6. Question 1-3 • How much is the CO2 directly emitted by production of 1kl of petroleum products at the refining process? CO2:kg SO2: 165 g NOx: 74 g Petroleum ： 1.026 kl LPG： 0.03 kl Gasoline： 0.19 kl Naphtha ： 1.5 liter Naphtha： 0.20 kl Heavy oil C ： 10 liter Kerosene： 0.11 kl LPG ： 1.3 kg Light oil： 0.16 kl Petro gas： 31 m3 Heavy oil A： 0.13 kl Coal： 1.7 kg Heavy oil C： 0.16 kl Elec. power： 9.0 kWh Asphalt： 0.02 kl ③Refining

  7. Question 1-4 • How much are the CO2, NOx, and SOx induced by usage ofelectric power in production of 1kl of petroleum products at the refining process? CO2:kg SO2: 165 g NOx: 74 g Petroleum ： 1.026 kl LPG： 0.03 kl Gasoline： 0.19 kl Naphtha ： 1.5 liter Naphtha： 0.20 kl Heavy oil C ： 10 liter Kerosene： 0.11 kl LPG ： 1.3 kg Light oil： 0.16 kl Petro gas： 31 m3 Heavy oil A： 0.13 kl Coal： 1.7 kg Heavy oil C： 0.16 kl Elec. power： 9.0 kWh Asphalt： 0.02 kl ③Refining

  8. Question 1-5 • In order to consider indirect emission from transportation, heavy oil A and C for transportation should be subtracted from production at refinery process. After doing so, calculate direct CO2, NOx, and SOx emission (kg-gas / kl) for each of the petroleum products. Use 1) volume-based allocation, and 2) heat-value based allocation. CO2:kg SO2:kg NOx:kg ×allocation petroleum ： 1.026 kl × allocation LPG： 0.03 kl

  9. Calculation sheet - comparing allocation methods

  10. Question 1-6 • Calculate CO2, NOx, SOx emission induced by (associated with) each of the petroleum products,for both allocation methods.

  11. Data • Heat values of different fuels • Emission factors for electric power in Japan

  12. Data 2 • Direct emission factors • Fuel gas and flare gas (Oil well drilling) • Fuels (Refining) • Fuel for Ships (Transportation) # both heavy oil A and C are : 1liter = 0.913 kg

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