Diverse molecular resistance mechanisms of Bacillus megaterium during metal removal present in a spent catalyst
Sign Up to like & getrecommendations! Published in 2017 at "Biotechnology and Bioprocess Engineering"
DOI: 10.1007/s12257-016-0019-6
Abstract: Bacillus megaterium strain MNSH1-9K-1, isolated from a high-metal content site in Guanajuato, Mexico, has the intrinsic capacity to remove vanadium (V) and nickel (Ni) from a petrochemical spent catalyst, and counteract the toxic effects produced… read more here.
Keywords: metal; spent catalyst; resistance; bacillus megaterium ... See more keywords
Specificity of Mo and V Removal from a Spent Catalyst by Cupriavidus metallidurans CH34
Sign Up to like & getrecommendations! Published in 2019 at "Waste and Biomass Valorization"
DOI: 10.1007/s12649-017-0093-9
Abstract: Spent catalysts are classified as hazardous residues of major environmental concern, mainly due to its elevated metal content. Although conventional spent catalysts treatment methods are available, they generate harmful wastes. Thus, biotechnological approaches are currently… read more here.
Keywords: catalyst; metallidurans ch34; spent catalysts; removal spent ... See more keywords
MP-PIC simulation of the effects of spent catalyst distribution and horizontal baffle in an industrial FCC regenerator. Part I: Effects on hydrodynamics
Sign Up to like & getrecommendations! Published in 2021 at "Chemical Engineering Journal"
DOI: 10.1016/j.cej.2021.128634
Abstract: Abstract Improving distribution uniformity of spent catalyst and adding horizontal baffles are two effective measures to improve the regeneration performance of a fluid catalytic cracking (FCC) unit. In this study, an industrial coaxial compact FCC… read more here.
Keywords: hydrodynamics; distribution; spent catalyst; crosser grid ... See more keywords
Leaching of vanadium, potassium, and iron from spent catalyst of the manufacture of sulfuric acid
Sign Up to like & getrecommendations! Published in 2021 at "Journal of materials research and technology"
DOI: 10.1016/j.jmrt.2021.01.072
Abstract: Abstract The sulfuric acid industry produces large volumes of spent catalyst containing vanadium. To develop an efficient method for vanadium recovery, hydrogen peroxide was used to oxidize sulfur in the spent catalyst, forming sulfuric acid,… read more here.
Keywords: potassium iron; sulfuric acid; vanadium; spent catalyst ... See more keywords
Evaluation of molybdenum recovery from sulfur removed spent catalyst using leaching and solvent extraction
Sign Up to like & getrecommendations! Published in 2020 at "Scientific Reports"
DOI: 10.1038/s41598-020-58972-x
Abstract: In this article a new spent catalyst sample preparation method was implemented for the purpose of molybdenum leaching in a single step. Further molybdenum and vanadium in the leach liquor were separated and their concentrations… read more here.
Keywords: solvent extraction; spent catalyst; acetone washed; molybdenum ... See more keywords
Optimization of a solvent extraction route for the recovery of Mo from petroleum refinery spent catalyst using Cyphos IL 102
Sign Up to like & getrecommendations! Published in 2018 at "Solvent Extraction and Ion Exchange"
DOI: 10.1080/07366299.2018.1507797
Abstract: ABSTRACT In this study, trihexyl(tetradecyl)phosphonium bromide (Cyphos IL 102) diluted in toluene has been explored for the first time as an organic phase for the extraction, separation, and recovery of Mo(VI) from hydrochloric acid medium.… read more here.
Keywords: recovery; extraction; solvent extraction; petroleum refinery ... See more keywords