One-pot aqueous phase catalytic conversion of sorbitol to gasoline over nickel catalyst

Weng, Yujing; Qiu, Songbai; Xu, Ying; Ding, Mingyue; Chen, Lungang; Zhang, Qi; Ma, Longlong; Wang, Zhihui

doi:10.1016/j.enconman.2015.01.054

Cited by 18 publications

(7 citation statements)

References 52 publications

(70 reference statements)

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“…The sorbitol hydrogenation reaction was performed in a tubular stainless trickle‐bed reactor (inner diameter of 10 mm, length of 350 mm) already described in previous work ,. During the reaction, sorbitol solution was pumped into the reactor at a flow rate of 0.05 mL min −1 by using a high‐pressure liquid pump.…”

Section: Methodsmentioning

confidence: 99%

Influence of Impregnation Processes on Ruthenium–Molybdenum Carbon Catalysts for Selective Hydrodeoxygenation of Biomass‐Derived Sorbitol into Renewable Alkanes

et al. 2018

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Sorbitol, as a C6 sugar related compound derived from cellulose, is regarded as a promising biomass‐derived substrate and has characteristically higher oxygen content than in fossil‐based resources. In this work, ruthenium–molybdenum carbon catalysts prepared by different impregnation processes were employed and extensively studied in a trickle‐bed reactor for sorbitol hydrodeoxygenation (HDO). Interestingly, these catalysts afforded remarkably different HDO performance. Ruthenium–molybdenum catalysts prepared by ultrasonic treatment and calcination obtained high HDO performance in sorbitol conversion with 79.8 % carbon yield of C5/C6 alkanes (pentane and hexane), almost twice that of ruthenium–molybdenum catalysts prepared without using a calcination processes. Therefore, a series of characterization studies (N2‐adsorption, XRD, HRTEM, XPS, H2‐TPR, CO‐TPD, NH3‐TPD, Py‐IR spectra, etc.) were performed over relevant catalysts to study the catalytic mechanism. The results suggest that prior calcination offers a better chance for the proximity between Ru and Mo precursors to produce the bimetallic catalytic structure Ru–MoOx, which produces high HDO performance.

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Section: Methodsmentioning

confidence: 99%

Influence of Impregnation Processes on Ruthenium–Molybdenum Carbon Catalysts for Selective Hydrodeoxygenation of Biomass‐Derived Sorbitol into Renewable Alkanes

et al. 2018

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“…In order to produce high-energy-density hydrocarbons from sorbitol, Weng et al reported a one-pot, two-step cascade process including carbon-chain extension and HDO over a bifunctional catalyst Ni@H-ZSM-5/silica-gel (Scheme ). Gratifyingly, a high gasoline (C 5 –C 12 ) yield of 46.9% composed of 45.5% of C 7 –C 12 hydrocarbons was obtained in a fixed bed reactor at 300 °C and 4 MPa H 2 . In addition, the reaction conditions of sorbitol-to-gasoline conversion were slightly milder than compared to those of the traditional process for transforming methanol to gasoline (350–500 °C).…”

Section: Aldol Condensationmentioning

confidence: 99%

Carbon-Increasing Catalytic Strategies for Upgrading Biomass into Energy-Intensive Fuels and Chemicals

Riisager²,

et al. 2017

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Lignocellulosic biomass is the most abundant organic carbon source and has received a great deal of interest as renewable and sustainable feedstock for the production of potential biofuels and value-added chemicals with a wide range of designed catalytic systems. However, those natural polymeric materials are composed of short-chain monomers (typically C6 and C5 sugars) and complex lignin molecules containing plenty of oxygen, resulting in products during the downstream processing having low-grade fuel properties or limited applications in organic syntheses. Accordingly, approaches to increase the carbon-chain length or carbon atom number have been developed as crucial catalytic routes for upgrading biomass into energy-intensive fuels and chemicals. The primary focus of this review is to systematically describe the recent examples on the selective synthesis of long-chain oxygenates via different C–C coupling catalytic processes, such as Aldol condensation, hydroalkylation/alkylation, oligomerization, ketonization, Diels–Alder, Guerbet, and acylation reactions. Other integrated reaction steps including, for example, hydrolysis, dehydration, oxidation, partial hydrogenation, and hydrodeoxygenation (HDO) to derive corresponding key intermediates or final products are also reviewed. The effects of catalyst structure/type and reaction parameters on the catalytic performance along with relevant reaction mechanisms are in detail discussed. Apart from this, the formation of other useful compounds containing C–X bonds (X = O, N, and S) derived from biomass-based substrates for producing fuel additives and valuable chemicals is also briefly reviewed.

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“…This could be explained by the fact that the main products of Ni-HZSM-5/SBA-15 were not only aromatics, but also more saturated alkanes, whose C/H ratio is lower than that of unsaturated aromatics. According to NH3-TPD analysis, the decrease of total acid sites of Ni@HZSM-5/SBA-15 restrained the formation of aromatic products and promoted the formation of more saturated alkanes and cycloalkanes [26][27][28]. Figure 6 showed the sorbitol conversion and oil yield as the function of reaction time.…”

Section: Products Of Sorbitol Transformationmentioning

confidence: 99%

Jet-Fuel Range Hydrocarbons from Biomass-Derived Sorbitol over Ni-HZSM-5/SBA-15 Catalyst

Weng

Qiu

et al. 2015

Catalysts

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Aromatics and cyclic-hydrocarbons are the significant components of jet fuel with high energy-density. However, conventional technologies for bio-fuel production cannot produce these products without further aromatization and isomerization. In this work, renewable liquid fuel with high content of aromatics and cyclic-hydrocarbons was obtained through aqueous catalytic conversion of biomass sorbitol over Ni-HZSM-5/SBA-15 catalyst. Texture characteristics of the catalyst were determined by physisorption of N2, which indicated its bimodal pore structures were microporous (HZSM-5, pore width: 0.56 nm) and mesoporous (SBA-15, pore width: 8 nm). The surface acidity included weak and strong acid sites, predominantly Lewis type, and was further confirmed by the NH3-TPD and Py-IR analysis. The catalytic performances were tested in a fixed-bed reactor under the conditions of 593 K, WHSV of 0.75 h

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One-pot aqueous phase catalytic conversion of sorbitol to gasoline over nickel catalyst

Cited by 18 publications

References 52 publications

Influence of Impregnation Processes on Ruthenium–Molybdenum Carbon Catalysts for Selective Hydrodeoxygenation of Biomass‐Derived Sorbitol into Renewable Alkanes

Influence of Impregnation Processes on Ruthenium–Molybdenum Carbon Catalysts for Selective Hydrodeoxygenation of Biomass‐Derived Sorbitol into Renewable Alkanes

Carbon-Increasing Catalytic Strategies for Upgrading Biomass into Energy-Intensive Fuels and Chemicals

Jet-Fuel Range Hydrocarbons from Biomass-Derived Sorbitol over Ni-HZSM-5/SBA-15 Catalyst

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