With the use of hydrogen as the primary fuel and make-up fuel being a portion of the PSA tail gas, there is no need for natural gas fuel firing. Comparing to conventional SMR-based plants, considering only the SMR fuel, not including fuel to a gas fired boiler or a gas turbine, the emission of CO 2 to atmosphere is in the range of 0.032-0.035 weight CO 2 /weight methanol product. So, for a 2000 tpd conventional methanol plant, the SMR stack gas CO 2 emissions would be in the range of 64-70 tpd (23,400 to 25,600 tpy), and the CO 2 product stream is in the range of 636-650 tpd. The TrueBlue process effectively converts the stack CO 2 emissions of a conventional plant to a CO 2 product stream. Comparison with alternative carbon capture methods The TrueBlue Methanol production process achieves 90+% reduction in SMR stack CO 2 emissions by reducing carbon-containing components in the fuel gas through use of ‘pre-combustion’ CO 2 removal and recycle of a high percentage of the carbon-containing tail gas to the feed. There are other processes that utilise a combination of pre-combustion and post-combustion CO 2 capture that can achieve a comparable overall level of CO 2 capture. However, the post-combustion capture techniques for low-pressure flue gas can be troublesome with respect to degradation of the absorbent solution, the corrosive nature of those solvents, and reduced efficiency of absorption in a low- pressure application. The elements added for the TrueBlue process are well proven, while the SMR design must be designed specifically to accommodate firing of 98% hydrogen fuel and a higher extent of pre-reforming compared to a conventional SMR- based plant. TrueBlue and TrueBlue Methanol are trademarks of BD Energy. Reference 1 International Renewable Energy Agency – Innovation Outlook Renewable Methanol, 2021.
• Decarbonizing Natural Gas Processing towards Net-zero Future • Carbon Neutral Natural Gas and LNG • Upstream Decarbonization Pathways • Hydrogen Production from H2S • Role of Hydrogen in Decarbonizing Natural Gas • CO2 Capture Utilization and Storage • Energy Efficiency Improvements • Methane Emission Reduction • SO2 Emission Reduction Practices and Technologies • Role of Digitalization in Sour Hydrocarbon Management and Emission Reduction
For more info contact : Dr. Nick Coles nick@domeexhibitions.com or +971 56 1002 149
Media Par tner:
Dan Barnett dan.barnett@bdenergysystems.com
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www.decarbonisationtechnology.com
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