Matches in SemOpenAlex for { <https://semopenalex.org/work/W2768036039> ?p ?o ?g. }
Showing items 1 to 83 of
83
with 100 items per page.
- W2768036039 abstract "The noncatalytic gas-solid reaction between CO$sb2$(g) and CaO(s) to form CaCO$sb3$(s) has been studied at high temperature and high pressure (HTHP) using a thermobalance reactor. This reaction could serve as the basis for a HTHP process for the separation of CO$sb2$ from coal-derived gas. The kinetics of the calcination and carbonation reactions were studied as a function of temperature, pressure, CO$sb2$ concentration, and background gas composition. Three sorbent precursors which produced CaO having a wide range of structural properties were selected for detailed kinetic studies. They were (i) reagent grade calcium carbonate, (ii) reagent grade calcium acetate, and (iii) commercial grade dolomite containing essentially equimolar quantities of CaCO$sb3$ and MgCO$sb3.$ Multicycle runs were conducted in order to have a better understanding of sorbent durability. Almost complete carbonation was possible using both calcium acetate and dolomite sorbent precursors; carbonation was incomplete when calcium carbonate precursor was used. The following operating conditions were found to be most appropriate: (UNFORMATTED TABLE OR EQUATION FOLLOWS)$$vbox{halign{#hfil&&qquad#hfilcr &Calcination temperature: &750$spcirc$Ccr &Calcination pressure: &1--15 atmcr &Calcination atmosphere: &any inert gas with lowcr &&CO$sb2$ partial pressurecr &Carbonation temperature: &650--750$spcirc$Ccr &Carbonation pressure: &15 atmcr &Carbonation atmosphere: &any sulfur-free orcr &&low-sulfur coal gascr}}$$. When sulfur-free simulated coal gas was tested, improved sorbent reactivity, capacity, and capacity maintenance were observed. The increase in reactivity was consistent with a higher concentration of CO$sb2,$ possibly formed by the water-gas shift reaction. The distributed pore size model (Christman and Edgar, 1983) was used to analyze the carbonation results using the reagent grade calcium carbonate precursor. Good agreement between the model and experiment was achieved for runs at 650$spcirc$C with varying CO$sb2$ mol fraction and reaction pressure. At different carbonation temperatures, however, it was necessary to assign zero activation energies to the intrinsic rate constant and product layer diffusion coefficient in order to match the experimental data. Both of these parameters should have quite large activation energies." @default.
- W2768036039 created "2017-11-17" @default.
- W2768036039 creator A5052134716 @default.
- W2768036039 date "2022-06-14" @default.
- W2768036039 modified "2023-10-07" @default.
- W2768036039 title "High-Temperature High-Pressure Carbon Dioxide Removal From Coal Gas." @default.
- W2768036039 cites W2003665304 @default.
- W2768036039 cites W2004842714 @default.
- W2768036039 cites W2031229409 @default.
- W2768036039 cites W2041316559 @default.
- W2768036039 cites W2041612189 @default.
- W2768036039 cites W2137660399 @default.
- W2768036039 cites W2149674546 @default.
- W2768036039 cites W2481864223 @default.
- W2768036039 doi "https://doi.org/10.31390/gradschool_disstheses.5546" @default.
- W2768036039 hasPublicationYear "2022" @default.
- W2768036039 type Work @default.
- W2768036039 sameAs 2768036039 @default.
- W2768036039 citedByCount "0" @default.
- W2768036039 crossrefType "dissertation" @default.
- W2768036039 hasAuthorship W2768036039A5052134716 @default.
- W2768036039 hasBestOaLocation W27680360391 @default.
- W2768036039 hasConcept C120809312 @default.
- W2768036039 hasConcept C127413603 @default.
- W2768036039 hasConcept C142724271 @default.
- W2768036039 hasConcept C150394285 @default.
- W2768036039 hasConcept C161790260 @default.
- W2768036039 hasConcept C178790620 @default.
- W2768036039 hasConcept C179104552 @default.
- W2768036039 hasConcept C185592680 @default.
- W2768036039 hasConcept C199289684 @default.
- W2768036039 hasConcept C204787440 @default.
- W2768036039 hasConcept C2776910235 @default.
- W2768036039 hasConcept C2777899863 @default.
- W2768036039 hasConcept C2779786595 @default.
- W2768036039 hasConcept C2780181037 @default.
- W2768036039 hasConcept C2780447027 @default.
- W2768036039 hasConcept C2780659211 @default.
- W2768036039 hasConcept C40875361 @default.
- W2768036039 hasConcept C42360764 @default.
- W2768036039 hasConcept C518881349 @default.
- W2768036039 hasConcept C530467964 @default.
- W2768036039 hasConcept C7082614 @default.
- W2768036039 hasConcept C71924100 @default.
- W2768036039 hasConceptScore W2768036039C120809312 @default.
- W2768036039 hasConceptScore W2768036039C127413603 @default.
- W2768036039 hasConceptScore W2768036039C142724271 @default.
- W2768036039 hasConceptScore W2768036039C150394285 @default.
- W2768036039 hasConceptScore W2768036039C161790260 @default.
- W2768036039 hasConceptScore W2768036039C178790620 @default.
- W2768036039 hasConceptScore W2768036039C179104552 @default.
- W2768036039 hasConceptScore W2768036039C185592680 @default.
- W2768036039 hasConceptScore W2768036039C199289684 @default.
- W2768036039 hasConceptScore W2768036039C204787440 @default.
- W2768036039 hasConceptScore W2768036039C2776910235 @default.
- W2768036039 hasConceptScore W2768036039C2777899863 @default.
- W2768036039 hasConceptScore W2768036039C2779786595 @default.
- W2768036039 hasConceptScore W2768036039C2780181037 @default.
- W2768036039 hasConceptScore W2768036039C2780447027 @default.
- W2768036039 hasConceptScore W2768036039C2780659211 @default.
- W2768036039 hasConceptScore W2768036039C40875361 @default.
- W2768036039 hasConceptScore W2768036039C42360764 @default.
- W2768036039 hasConceptScore W2768036039C518881349 @default.
- W2768036039 hasConceptScore W2768036039C530467964 @default.
- W2768036039 hasConceptScore W2768036039C7082614 @default.
- W2768036039 hasConceptScore W2768036039C71924100 @default.
- W2768036039 hasLocation W27680360391 @default.
- W2768036039 hasOpenAccess W2768036039 @default.
- W2768036039 hasPrimaryLocation W27680360391 @default.
- W2768036039 hasRelatedWork W128552350 @default.
- W2768036039 hasRelatedWork W1979440879 @default.
- W2768036039 hasRelatedWork W2061538278 @default.
- W2768036039 hasRelatedWork W2064570606 @default.
- W2768036039 hasRelatedWork W2220380553 @default.
- W2768036039 hasRelatedWork W2262860623 @default.
- W2768036039 hasRelatedWork W2353021732 @default.
- W2768036039 hasRelatedWork W2885119358 @default.
- W2768036039 hasRelatedWork W2922503365 @default.
- W2768036039 hasRelatedWork W3012719344 @default.
- W2768036039 isParatext "false" @default.
- W2768036039 isRetracted "false" @default.
- W2768036039 magId "2768036039" @default.
- W2768036039 workType "dissertation" @default.