Technology and Prospect of Process Heat Application of HTR(High temperature gas cooled reactor) Applications in Oil Refining Industry

Transcription

1 Technology and Prospect of Process Heat Application of HTR(High temperature gas cooled reactor) Applications in Oil Refining Industry Dr. Min Qi, Associate Professor Institute of Nuclear and New Energy Technology, Tsinghua University

2 1. Background,increasing demand of heat energy 2. What can be offered by HTR and what s the benefit 3. Process heat of HTR 4. Applications of HTR in Oil Refining Industry 5. Conclusion

3 1. Background,increasing demand of heat energy 2. What can be offered by HTR and what s the benefit 3. Process heat of HTR 4. Applications of HTR in Oil Refining Industry 5. Conclusion

4 1. Background,increasing demand of heat energy Analysis on the present situation and Prospect of heat supply in China Residential heating Others Residential heating Industrial heating The next 10 years, or even longer, the city heating market will maintain a compound growth rate of about 7% in China.

5 1. Background,increasing demand of heat energy 4 10 GJ Industrial 4 heating Total steam heat supply Total hot water heat supply Industrial heating demand growth rate is also expected to be maintained at around 5%.

6 1. Background,increasing demand of heat energy Problems existing in China Others 20% Cogeneration 31% Coal stove Heat pump 35% Environmental protection and energy saving requirements limit the development of traditional fossil energy Coal 80% Coal is the main energy source in the heating industry, and it is the main source of air pollution in China The proportion of clean and environmentally friendly energy is limited Coal fired boiler 34% Nuclear Energy: zero emission power plant HTR Promising alternative energy sources

7 1. Background,increasing demand of heat energy 2. What can be offered by HTR and what s the benefit 3. Process heat of HTR 4. Applications of HTR in Oil Refining Industry 5. Conclusion

8 2. What can be offered by HTR and what s the benefit What can be offered? Electricity: generated by Rankine or Brayton cycle; Heat source: generate high-temperature helium Steam: high-temperature and pressure steam through SG

9 2. What can be offered by HTR and what s the benefit What s the benefit Various types of high quality energy supplies for normal life and industrial applications Wide temperature range of heat fluid Inherent nuclear safety to ensure the feasibility of integrated HTR applications HTR-PM Flexible configuration based on modular units to meet different level of energy requirements

10 2. What can be offered by HTR and what s the benefit What s the benefit Various types of high quality energy supplies for normal life and industrial applications Wide temperature range of heat fluid Inherent nuclear safety to ensure the feasibility of integrated HTR applications HTR-PM Flexible configuration based on modular units to meet different level of energy requirements

11 1. Background,increasing demand of heat energy 2. What can be offered by HTR and what s the benefit 3. Process heat of HTR 4. Applications of HTR in Oil Refining Industry 5. Conclusion

12 3. Process heat of HTR What s the industrial applications of HTR Process Temperature / PWR HTR

13 3. Process heat of HTR What s the industrial applications of HTR 80~200 Sea water desalination Ethanol Concentration district heating 80~ Process Temperature / PWR HTR

14 3. Process heat of HTR What s the industrial applications of HTR 250~550 Petroleum refining 250~550 80~ Process Temperature / PWR HTR

15 3. Process heat of HTR What s the industrial applications of HTR Oil shale 300~600 Oil sand processing 300~ ~550 80~ Process Temperature / PWR HTR

16 3. Process heat of HTR What s the industrial applications of HTR 350~800 Cogeneration of electricity and steam 350~ ~ ~550 80~ Process Temperature / PWR HTR

17 3. Process heat of HTR What s the industrial applications of HTR 500~ ~ ~900 Steam reforming of natural gas Biomass hydrothermal gasification 300~600 80~ ~ Process Temperature / PWR HTR

18 3. Process heat of HTR What s the industrial applications of HTR 800~ ~1000 Hydrogen production 500~900 Coal Gasification 350~ ~ ~550 80~ Process Temperature / PWR HTR

19 1. Background,increasing demand of heat energy 2. What can be offered by HTR and what s the benefit 3. Process heat of HTR 4. Applications of HTR in Oil Refining Industry 5. Conclusion

20 4. Applications of HTR in Oil Refining Industry Ethylene producing Petroleum refining Four stages of steam pipe networks Ultra-high pressure: 12.0MPaG,490 C, supply by the Cracking Furnace High-pressure: 4.0MPaG,420 C,158.6 t/h for refining and t/h for ChemE; Medium-pressure:1.0~1.2MPaG,260~290 C,22.4 t/h; Low pressure:0.35~0.4mpag,190 C, t/h

21 4. Applications of HTR in Oil Refining Industry Ultra-high pressure: 12.0MPaG,490 C, supply by the Cracking Furnace High-pressure: 4.0MPaG,420 C,158.6 t/h for refining and t/h for ChemE; Medium-pressure:1.0~1.2MPaG,260~290 C,22.4 t/h; Low pressure:0.35~0.4mpag,190 C, t/h

22 4. Applications of HTR in Oil Refining Industry HTR could be used as the steam supply system of petrochemical factory instead of its own thermal power station

23 4. Applications of HTR in Oil Refining Industry Main Parameters of HTR-PM600 Units Value Parameter of reactor Parameter of steam generator Parameter of steam turbine Total Thermal Power MW Working Pressure of Helium in the Primary Loop MPa 7.0 Temperature at Core Inlet 250 Temperature at Core Outlet 750 Mass flow of Helium kg/s 96 Temperature at the Inlet of Secondary side of SG Pressure at the Inlet of Secondary side of SG MPa 15.2 Temperature at the Outlet of Secondary side of SG 571 Pressure at the Outlet of Secondary Side of SG MPa 13.2 Rated Flow of Main Steam t/h 2076 Rated Electrical Power MW 653 Inlet Steam Pressure MPa Inlet Steam Temperature 566 Exhaust Steam Pressure of Low Pressure Cylinder kpa 4.9 Capacity of Bypass System of SG / 50% Flow of Supply Water when staring-up / 30% Steam parameters can be further improved according to the specific parameters of petrochemical factory.

24 4. Applications of HTR in Oil Refining Industry HTR-PM600 steam turbine unit for heat application Enthalpy-Entropy diagram of heating supply of steam extraction from steam turbine

25 4. Applications of HTR in Oil Refining Industry HTR-PM600 steam turbine unit for heat application HTR-PM Steam turbine unit for electricity generation

26 4. Applications of HTR in Oil Refining Industry

27 4. Applications of HTR in Oil Refining Industry Direct cost method

28 4. Applications of HTR in Oil Refining Industry The cost of HTR-PM600 providing heat could save $681/h compared with the self-owned thermal power station, therefore it could add up to $5,964,615 for a whole The lower the on-grid price for electricity generated by HTR and the higher the price for coal would be, meanwhile, the cost of heat supplied by HTR is lower as well. Political factors such as carbon tax is not considered.

29 4. Applications of HTR in Oil Refining Industry Influence of Explosion Source Oil Refining District: Low Risk Chemical Engineering District: Low Risk Tank Farm: High Risk Oil Refining District Tank Farm HTR Chemical Engineering District Torch Thermal Radiation

30 4. Applications of HTR in Oil Refining Industry Influence of Potential Toxicity Benzene For the safety of HTR and factory, it should be remembered that: (1) The ground of HTR should be higher than the ground of tank farm where contains large amount of toxic materials. (2) HTR should be placed at the downwind and it should be Acrylonitrile the least frequent wind direction of the whole year. (3) Sometimes, the special protective items such as firewall, blastwall should be designed and located.

31 1. Background,increasing demand of heat energy 2. What can be offered by HTR and what s the benefit 3. Process heat of HTR 4. Applications of HTR in Oil Refining Industry 5. Conclusion

32 5. Conclusion HTR process heat application potential market is wide. HTR can offer high quality heat with a wide temperature range. It is possible to use HTR-PM600 to provide process steam for refineries. If uses HTR-PM600 to provide steam for refineries, the parameters of reactor and steam generator will not need to change totally, which is technically easy to solve. The steam turbine of HTR needs to be redesigned, and it can use the mature technology of turbines of thermal power station for reference. The economy of this project is also acceptable.

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