Multiphase Catalytic Hydrogenolysis/Hydrodeoxygenation Processes for Chemicals from Renewable Feedstocks: Kinetics, Mechanism, and Reaction Engineering

Chaudhari, Raghunath V.; Torres, Arely; Jin, Xin; Subramaniam, Bala

doi:10.1021/ie400709d

Cited by 34 publications

(32 citation statements)

References 110 publications

(171 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Hydrogenolysis and hydrodeoxygenation, are considered as important reactions in biomass conversion because of their ability to reduce oxygen content in cellulosic biomass, especially for making hydrocarbon fuels. Hydrogenolysis reaction often refers to both C−O and C−C bond cleavage because a variety of catalytic reactions over metal catalysts involve reduction of oxygen content and simultaneous formation of short chain products . In the context of chemical production from biomass, precise control of the position where C−O and C−C cleavage occurs over nanostructured catalysts is critical for achieving high selectivity and yield towards desired products.…”

Section: Figurementioning

confidence: 73%

“…To date, several review articles have been published on hydrogenation and oxidation of lignocellulosic biomass feedstocks to value‐added chemicals . These articles are focused on either the chemistry, product distribution and reaction mechanism involved in cellulose, glucose, hydroxymethylfurfural (HMF), xylose, glycerol, sorbitol and xylitol conversion, or catalyst performances in selective synthesis of diols ( e. g .…”

Section: Figurementioning

confidence: 99%

“…Hydrogenation is among the most commonly used upgrading technologies in industry. [6,24] Various metal based catalysts such as Pt, Ru, Pd, Cu, Ni, etc have been developed for active and selective transformation of fossil and renewable feedstocks. Due to the unique structure of cellulosic biomass, hydrogenation here only refers to saturation of C=O or C=C bond.…”

Section: (A) Hydrogenation Reactionsmentioning

confidence: 99%

“…To date, several review articles have been published on hydrogenation and oxidation of lignocellulosic biomass feedstocks to value-added chemicals. [1][2]6] These articles are focused on either the chemistry, product distribution and reaction mechanism involved in cellulose, glucose, hydroxymethylfurfural (HMF), xylose, glycerol, sorbitol and xylitol conversion, or catalyst performances in selective synthesis of diols (e. g. ethylene glycol, 1,2-propanediol, 1,3-propanediol, 1,4-butanediol, 1,4-pentanediol) and carboxylic acids (e. g. lactic acid, succinic acid, levulinic acid, gluconic acid, glucaric acid, furan dicarboxylic acid). Recent reviews on nanomaterials have extensively discussed the theoretical and experimental aspects of nanostructured catalysts including hierarchy of morphologies, hollow structures, phase segregation, plasmonic structures, electron reconfiguration and in situ characterization techniques.…”

mentioning

confidence: 99%

See 3 more Smart Citations

Nanostructured Metal Catalysts for Selective Hydrogenation and Oxidation of Cellulosic Biomass to Chemicals

Jin

Fang

Wang

et al. 2018

The Chemical Record

Self Cite

View full text Add to dashboard Cite

Conversion of biomass to chemicals provides essential products to human society from renewable resources. In this context, achieving atom‐economical and energy‐efficient conversion with high selectivity towards target products remains a key challenge. Recent developments in nanostructured catalysts address this challenge reporting remarkable performances in shape and morphology dependent catalysis by metals on nano scale in energy and environmental applications. In this review, most recent advances in synthesis of heterogeneous nanomaterials, surface characterization and catalytic performances for hydrogenation and oxidation for biorenewables with plausible mechanism have been discussed. The perspectives obtained from this review paper will provide insights into rational design of active, selective and stable catalytic materials for sustainable production of value‐added chemicals from biomass resources.

show abstract

Section: Figurementioning

confidence: 73%

Section: Figurementioning

confidence: 99%

Section: (A) Hydrogenation Reactionsmentioning

confidence: 99%

mentioning

confidence: 99%

See 2 more Smart Citations

Nanostructured Metal Catalysts for Selective Hydrogenation and Oxidation of Cellulosic Biomass to Chemicals

Jin

Fang

Wang

et al. 2018

The Chemical Record

Self Cite

View full text Add to dashboard Cite

show abstract

“…Traditional hydrotreating catalysts, such as Co-MoS2 and Ni-MoS2, have been among the most tested catalysts for HDO of bio-oil [6,[9][10][11][12][13][14]. This group of catalysts is already industrially established for hydrodesulfurization (HDS) of crude oil [15][16][17][18].…”

Section: Introductionmentioning

confidence: 99%

Deactivation of Ni-MoS2 by bio-oil impurities during hydrodeoxygenation of phenol and octanol

Mortensen

Gardini

Damsgaard

et al. 2016

Applied Catalysis A: General

View full text Add to dashboard Cite

Deactivation of Ni-MoS2 by bio-oil impurities during hydrodeoxygenation of phenol and octanol, Applied Catalysis A, General http://dx.doi.org/10. 1016/j.apcata.2016.06.002 This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published in its final form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain. Graphical abstractHighlights  Impurities as Cl, S, and K found in bio-oil will deactivate or inhibit MoS2-type catalyst by competing for the active sites  MoS2-based catalysts will produce sulfur containing hydrocarbons during HDO, but these can be removed again if a sufficiently high residence time is used enabling desulfurization of the product  Chlorine binds more strongly to the active sites of MoS2 based catalysts compared to H2O and H2S, while K irreversibly deactivates the catalyst 3 AbstractThe stability of Ni-MoS2/ZrO2 toward water, potassium, and chlorine containing compounds during hydrodeoxygenation (HDO) of a mixture of phenol and 1-octanol was investigated in a high pressure gas and liquid continuous flow fixed bed setup at 280°C and 100 bar. To maintain the stability of the catalyst, sufficient co-feeding of a sulfur source was necessary to avoid oxidation of the sulfide phase by oxygen replacement of the edge sulfur atoms in the MoS2 structure. However, the addition of sulfur to the feed gas resulted in the formation of sulfur containing compounds, mainly thiols, in the oil product if the residence time was too low. At a weight hourly space velocity (WHSV) of 4.9 h -1 the sulfur content in the liquid product was 980 ppm by weight, but this could be decreased to 5 ppm at a WHSV of 1.4 h -1 . A high co-feed of sulfur was needed when water was present in the feed and the H2O/H2S molar ratio should be below ca. 10 to maintain a decent stability of the catalyst. Chlorine containing compounds caused a reversible deactivation of the catalyst when co-fed to the reactor, where the catalytic activity could be completely regained when removing it from the feed. Commonly, chlorine, H2O, and H2S all inhibited the activity of the catalyst by competing for the active sites, with chlorine being by far the strongest inhibitor and H2S and H2O of roughly the same strength. Dissimilar, potassium was a severe poison and irreversibly deactivated the catalyst to <5% degree of deoxygenation when impregnated on the catalyst in a stoichiometric ratio relative to the active metal. This deactivation was a result of adsorption of potassium on the edge vacancy sites of the MoS2 slabs.

show abstract

Biodiesel ‐Derived Raw Glycerol to Value‐Added Products: Catalytic Conversion Approach

Julkapli

Dabdawb

Mansouri

2017

Handbook of Composites From Renewable Materials

View full text Add to dashboard Cite

Multiphase Catalytic Hydrogenolysis/Hydrodeoxygenation Processes for Chemicals from Renewable Feedstocks: Kinetics, Mechanism, and Reaction Engineering

Cited by 34 publications

References 110 publications

Nanostructured Metal Catalysts for Selective Hydrogenation and Oxidation of Cellulosic Biomass to Chemicals

Nanostructured Metal Catalysts for Selective Hydrogenation and Oxidation of Cellulosic Biomass to Chemicals

Deactivation of Ni-MoS2 by bio-oil impurities during hydrodeoxygenation of phenol and octanol

Biodiesel ‐Derived Raw Glycerol to Value‐Added Products: Catalytic Conversion Approach

Contact Info

Product

Resources

About