PDF Publication Title:
Text from PDF Page: 042
2.4. DISCUSSION 2. HYDROGEN RADICAL ASSISTED METHANATION Table 2.7: List of plausible surface reactions. (s): surface species (g): species present in the reactor volume. Name Reaction S1 CO(g) −→ C(s) + O(s) S2 CO(s) + H2rv −→ CH(s) + OH(s) S3 CO(s,g) + H(g,s) −→ CH(s) + O(s) S4 O(s) + O(s) −→ O2 (g) S5 O(s,g)+ H(g,s) −→ OH(s) S6 OH(s) + H(s,g) −→ H2 O(g) S7 CHy(s) +H(s,g) −→ CHy+1(s) (y=0-3) S8 CH3 (s) +H(s,g) −→ CH4 (g) S9 C(s) +O(s,g) −→ CO(g) S10 CO(s) +O(s,g) −→ CO2(g) overcoming the activation barriers otherwise difficult to proceed in similar pressure and gas temperature [87]. Such ro-vibrationally excited CO could enhance its dissociative adsorption which is not expected at the inert stainless steel reactor walls. Another mechanism to explain initial methyl group (CH) formation from physisorbed CO is hydrogenation of CO by ro-vibrationally excited H2rv (reaction S2) or by H radical (reaction S3). Continuous production of H2O in Ar+CO+H2 plasmas even in conditions where R2 is not effective, also supports the fact that reactions S2 and S3 are important. Mertz et al [112, 113] have attributed the source of carbon to electron impact dissociation of CO, for methyl group formation via three body recombination reaction in gas phase, in their measurements done in CO and H2 mixtures in radio frequency discharges at high pressures; Te in such plasmas is much higher than in EPJ considered here and hence such a possibility can be ruled out. For comparison the maximum conversion of CO to CH4 in their plasmas is 19% compared to 25 % reported in this work. At this point it is not clear which of these mechanisms is dominant but any successful mechanism should include CO to explain effective methanation. To further understand role of surface of stainless steel wall reactor was covered with copper (Cu) sheets and aluminum (Al) sheets and similar experiments with Ar+CO2 +H2 plasmas were conducted. While Al covering did not lead to noticeable differences in the product distribution (which is therefore not presented here) the product formation was 33PDF Image | Understanding CO2 containing non-equilibrium plasmas
PDF Search Title:
Understanding CO2 containing non-equilibrium plasmasOriginal File Name Searched:
20160125_CO_Ponduri.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 |