Zobrazeno 1 - 10
of 16
pro vyhledávání: '"Calvin Feik"'
Publikováno v:
Environmental Science & Technology
The effects of feedstock type and biomass conversion conditions on the speciation of sulfur in biochars are not well-known. In this study, the sulfur content and speciation in biochars generated from pyrolysis and gasification of oak and corn stover
Autor:
Calvin Feik, Robert M. Baldwin
Publikováno v:
Energy & Fuels. 27:3224-3238
The objective of this research project was to test the hypothesis that separation of char with its associated mineral matter from pyrolysis vapors before condensation will lead to improved bio-oil ...
Autor:
Abhijit Dutta, Richard L. Bain, Singfoong Cheah, Steven D. Phillips, Kim Magrini-Bair, Calvin Feik
Publikováno v:
Industrial & Engineering Chemistry Research. 51:8326-8333
Sulfur present in biomass often causes catalyst deactivation during downstream operations after gasification. Early removal of sulfur from the syngas stream post-gasification is possible via process rearrangements and can be beneficial for maintainin
Publikováno v:
Biofuels. 3:123-128
Background: Pyrolysis is a promising approach to utilize biomass for biofuels. One of the key challenges for this conversion is how to analyze complicated components in the pyrolysis oils. Water contents of pyrolysis oils are normally analyzed by Kar
Autor:
Abhijit Dutta, Ryan Davis, Calvin Feik, Mark R. Nimlos, Steven D. Phillips, Daniel Carpenter, Katherine R. Gaston, Richard L. Bain, Whitney S. Jablonski
Publikováno v:
Industrial & Engineering Chemistry Research. 49:1859-1871
A parametric study of the gasification of four feedstocks (corn stover, switchgrass, wheat straw, and wood) has been performed on an experimental, pilot-scale (0.5 ton/day) gasification facility. A comparison was made of the performance of the gasifi
Autor:
Calvin Feik, Kimberly A. Magrini-Bair, Yves Parent, Katherine R. Gaston, Marc D. Pomeroy, Daniel Carpenter, Matthew M. Yung, Steven D. Phillips
Publikováno v:
Catalysis Letters. 134:242-249
A fluidizable, Ni/Mg/K/AD90(90% α-Al2O3) catalyst was evaluated in a pilot-scale study with oak-derived syngas for tar and methane reforming at 900 °C. The catalyst was operated in a semi-batch mode for ten individual reaction cycles, each separate
Autor:
Whitney S. Jablonski, Calvin Feik, Daniel Carpenter, Mark R. Nimlos, Steven D. Phillips, Katherine R. Gaston
Publikováno v:
Industrial & Engineering Chemistry Research. 48:10691-10701
A pilot-scale study was conducted to examine the effect of the steam-to-biomass ratio, the gasification temperature, and the thermal cracker temperature for Vermont wood, wheat straw, switchgrass, and corn stover on the formation and speciation of ta
Autor:
David C. Dayton, Esteban Chornet, Stefan Czernik, Calvin Feik, Richard L. Bain, Yves Parent, Kimberly A. Magrini-Bair, Richard J. French
Publikováno v:
Applied Catalysis A: General. 318:199-206
A multi-stage catalyst development approach is used to evaluate and optimize fluidizable tar reforming catalysts for conditioning syngas from biomass gasification. Previous work showed that catalyst fluidization is required to efficiently reform biom
Autor:
Calvin Feik, Richard J. French, Richard L. Bain, Kimberly A. Magrini-Bair, Stefan Czernik, Steven D. Phillips, Daniel Carpenter, David C. Dayton
Publikováno v:
Industrial & Engineering Chemistry Research. 44:7945-7956
Mitigation of tars produced during biomass gasification continues to be a technical barrier to developing systems. This effort combined the measurement of tar-reforming catalyst deactivation kinetics and the production of syngas in a pilot-scale biom
Publikováno v:
Industrial & Engineering Chemistry Research. 41:4209-4215
Biomass, a product of photosynthesis, is a renewable resource that can be used for sustainable production of hydrogen. We propose an approach that combines production of hydrogen with valuable coproducts and shows promising economics. The concept is