PDF Publication Title:
Text from PDF Page: 157
Figure 11. Effect of pressure in flash tank on (a) YCH4,PG and loss ratio of CH4; (b) Energy utilization and RECO2 using 50 wt. % ChCl/Urea (1:2) as absorbent The flash tank was used to minimize the methane loss, and the pressure of the flash tank (pflash) affected YCH4,PG, RECO2, the loss ratio of methane and the total energy utilization. Based on values of Nab and L/G listed in Table 6, the sensitivity analysis was further conducted on pflash. Results for different aqueous ChCl/Urea (1:2) solutions are similar, and Figure 11 illustrates the results for 50 wt. % ChCl/Urea (1:2) as one example. As shown in Figure 11, when pflash was higher than 0.3 MPa, YCH4,PG, RECO2 and the total energy utilization almost maintained as constants, but the loss ratio of methane increased greatly. To maintain the loss of CH4 lower than 1 %, pflash should be in a range of 0.3 - 0.34 MPa using 50 wt. % ChCl/Urea (1:2) as absorbent. While for water, 30 wt. % ChCl/Urea (1:2), and 70 wt. % ChCl/Urea (1:2), the ranges were 0.3 MPa ≤ pflash ≤ 0.36 MPa, 0.3 MPa ≤ pflash ≤ 0.35 MPa and 0.3 MPa ≤ pflash ≤ 0.31 MPa, respectively. Based on the analysis, it was proper to set pflash to be 0.3 MPa for all of these absorbents in order to achieve the target of the loss of methane (<1%). In desorption, the ratio of the air flow rate to that of biogas (AFR/G, m3∙m-3) affected the desorption rate of CO2 (ηCO2), YCH4,PG, YCH4,SG and the total energy utilization. The ηCO2 was defined as the mole flow rate of CO2 in the off gas left from the desorber divided the mole flow rate of CO2 in the rich solvent entered into the absorber. Based on the optimal Nab, L/G and pflash for each solvent, the effect of AFR/G on the process performance was studied. In general, with the increase of AFR/G, YCH4,PG, ηCO2 and YCH4,SG changed dramatically at first and then slightly when AFR/G was higher than 2.1 as shown in Figure 12. While the total energy utilization increased linearly with the increase of AFR/G. Meanwhile, the concentration of ChCl/Urea (1:2) did not show an obvious influence on the optimal AFR/G. Therefore, the AFR/G was set to be 2.1 for all of these absorbents in order to achieve the target of the methane purity in product. The final results are listed in Table 6. As we can see from Table 6, when AFR/G was set to be 2.1 for these absorbents, ηCO2 changed slightly when the content of ChCl/Urea (1:2) was changed from 0 to 50 wt. %. While for 70 wt. % ChCl/Urea (1:2), the ηCO2 changed greatly compared with other solvents due to the difficulty to desorb CO2. 17PDF Image | CO2 Separation with Ionic Liquids
PDF Search Title:
CO2 Separation with Ionic LiquidsOriginal File Name Searched:
co2-separation-ionic-liquids.pdfDIY PDF Search: Google It | Yahoo | Bing
NFT (Non Fungible Token): Buy our tech, design, development or system NFT and become part of our tech NFT network... More Info
IT XR Project Redstone NFT Available for Sale: NFT for high tech turbine design with one part 3D printed counter-rotating energy turbine. Be part of the future with this NFT. Can be bought and sold but only one design NFT exists. Royalties go to the developer (Infinity) to keep enhancing design and applications... More Info
Infinity Turbine IT XR Project Redstone Design: NFT for sale... NFT for high tech turbine design with one part 3D printed counter-rotating energy turbine. Includes all rights to this turbine design, including license for Fluid Handling Block I and II for the turbine assembly and housing. The NFT includes the blueprints (cad/cam), revenue streams, and all future development of the IT XR Project Redstone... More Info
Infinity Turbine ROT Radial Outflow Turbine 24 Design and Worldwide Rights: NFT for sale... NFT for the ROT 24 energy turbine. Be part of the future with this NFT. This design can be bought and sold but only one design NFT exists. You may manufacture the unit, or get the revenues from its sale from Infinity Turbine. Royalties go to the developer (Infinity) to keep enhancing design and applications... More Info
Infinity Supercritical CO2 10 Liter Extractor Design and Worldwide Rights: The Infinity Supercritical 10L CO2 extractor is for botanical oil extraction, which is rich in terpenes and can produce shelf ready full spectrum oil. With over 5 years of development, this industry leader mature extractor machine has been sold since 2015 and is part of many profitable businesses. The process can also be used for electrowinning, e-waste recycling, and lithium battery recycling, gold mining electronic wastes, precious metals. CO2 can also be used in a reverse fuel cell with nafion to make a gas-to-liquids fuel, such as methanol, ethanol and butanol or ethylene. Supercritical CO2 has also been used for treating nafion to make it more effective catalyst. This NFT is for the purchase of worldwide rights which includes the design. More Info
NFT (Non Fungible Token): Buy our tech, design, development or system NFT and become part of our tech NFT network... More Info
Infinity Turbine Products: Special for this month, any plans are $10,000 for complete Cad/Cam blueprints. License is for one build. Try before you buy a production license. May pay by Bitcoin or other Crypto. Products Page... More Info
| CONTACT TEL: 608-238-6001 Email: greg@infinityturbine.com | RSS | AMP |