Camellia oleifera shell as an alternative feedstock for furfural production using a high surface acidity solid acid catalyst

2018 ◽  
Vol 249 ◽  
pp. 536-541 ◽  
Author(s):  
Luxin Zhang ◽  
Yunfei He ◽  
Yujie Zhu ◽  
Yuting Liu ◽  
Xiaochang Wang
Keyword(s):  
Solid Acid ◽  
Surface Acidity ◽  
Solid Acid Catalyst ◽  
High Surface ◽  
Acid Catalyst ◽  
Camellia Oleifera ◽  
Camellia Oleifera Shell ◽  
Alternative Feedstock ◽  
Furfural Production

scholarly journals Furfural production in a biphasic system using a carbonaceous solid acid catalyst

2019 ◽  
Vol 585 ◽  
pp. 117180 ◽  
Author(s):  
Gerardo Gómez Millán ◽  
Josphat Phiri ◽  
Mikko Mäkelä ◽  
Thad Maloney ◽  
Alina M. Balu ◽  
...  
Keyword(s):  
Solid Acid ◽  
Solid Acid Catalyst ◽  
Acid Catalyst ◽  
Biphasic System ◽  
Furfural Production

Furfural production from rice husk using sulfuric acid and a solid acid catalyst through a two-stage process

2012 ◽  
Vol 359 ◽  
pp. 1-6 ◽  
Author(s):  
Ren Suxia ◽  
Xu Haiyan ◽  
Zhu Jinling ◽  
Li Shunqing ◽  
He Xiaofeng ◽  
...  
Keyword(s):  
Sulfuric Acid ◽  
Rice Husk ◽  
Solid Acid ◽  
Solid Acid Catalyst ◽  
Acid Catalyst ◽  
Two Stage ◽  
Stage Process ◽  
Furfural Production

scholarly journals Mesoporous Crystalline Niobium Oxide with a High Surface Area: A Solid Acid Catalyst for Alkyne Hydration

2020 ◽  
Vol 12 (42) ◽  
pp. 47389-47396 ◽  
Author(s):  
Dinithi Rathnayake ◽  
Inosh Perera ◽  
Alireza Shirazi-Amin ◽  
Peter Kerns ◽  
Shanka Dissanayake ◽  
...  
Keyword(s):  
Surface Area ◽  
Niobium Oxide ◽  
Solid Acid ◽  
Solid Acid Catalyst ◽  
High Surface ◽  
High Surface Area ◽  
Acid Catalyst

scholarly journals Nanostructured zeolite with brain-coral morphology and tailored acidity: a self-organized hierarchical porous material with MFI topology

CrystEngComm ◽  
2020 ◽  
Vol 22 (38) ◽  
pp. 6275-6286
Author(s):  
Esun Selvam ◽  
Rajesh K. Parsapur ◽  
Carlos E. Hernandez-Tamargo ◽  
Nora H. de Leeuw ◽  
Parasuraman Selvam
Keyword(s):  
Solid Acid ◽  
Solid Acid Catalyst ◽  
High Surface ◽  
High Surface Area ◽  
Acid Catalyst ◽  
Acid Sites ◽  
Diffusion Resistance ◽  
Self Organized ◽  
Hierarchical Porous ◽  
Coral Morphology

Nano-zeolite with brain-coral morphology formed by self-organization of ultra-small nanospheres, exhibits micro/meso porosity with high surface area, distributed acid sites, and reduced diffusion resistance making it a promising solid acid catalyst.

scholarly journals Mesoporous Porphyrin-Silica Nanocomposite as Solid Acid Catalyst for High Yield Synthesis of HMF in Water

Molecules ◽  
2021 ◽  
Vol 26 (9) ◽  
pp. 2519
Author(s):  
Arindam Modak ◽  
Akshay R. Mankar ◽  
Kamal Kishore Pant ◽  
Asim Bhaumik
Keyword(s):  
Sulfonic Acid ◽  
Solid Acid ◽  
Solid Acid Catalyst ◽  
High Surface ◽  
High Surface Area ◽  
Acid Catalyst ◽  
Acid Sites ◽  
Environmental Research ◽  
Organic Polymer ◽  
High Yield

Solid acid catalysts occupy a special class in heterogeneous catalysis for their efficiency in eco-friendly conversion of biomass into demanding chemicals. We synthesized porphyrin containing porous organic polymers (PorPOPs) using colloidal silica as a support. Post-modification with chlorosulfonic acid enabled sulfonic acid functionalization, and the resulting material (PorPOPS) showed excellent activity and durability for the conversion of fructose to 5-hydroxymethyl furfural (HMF) in green solvent water. PorPOPS composite was characterized by N2 sorption, FTIR, TGA, CHNS, FESEM, TEM and XPS techniques, justifying the successful synthesis of organic networks and the grafting of sulfonic acid sites (5 wt%). Furthermore, a high surface area (260 m2/g) and the presence of distinct mesopores of ~15 nm were distinctly different from the porphyrin containing sulfonated porous organic polymer (FePOP-1S). Surprisingly the hybrid PorPOPS showed an excellent yield of HMF (85%) and high selectivity (>90%) in water as compared to microporous pristine-FePOP-1S (yield of HMF = 35%). This research demonstrates the requirement of organic modification on silica surfaces to tailor the activity and selectivity of the catalysts. We foresee that this research may inspire further applications of biomass conversion in water in future environmental research.

scholarly journals Sulfonated Graphitic Carbon Nitride (Sg-C3N4): A Highly Efficient Heterogeneous Organo-Catalyst for Condensation Reactions

Proceedings ◽  
2019 ◽  
Vol 41 (1) ◽  
pp. 14
Author(s):  
Hossein Ghafuri ◽  
Peyman Hanifehnejad ◽  
Zeynab Rezazadeh ◽  
Afsaneh Rashidizadeh
Keyword(s):  
Chemical Stability ◽  
Carbon Nitride ◽  
Solid Acid ◽  
Solid Acid Catalyst ◽  
High Surface ◽  
High Surface Area ◽  
Acid Catalyst ◽  
Graphitic Carbon ◽  
Graphitic Carbon Nitride ◽  
High Catalytic Activity

Currently, constructing solid acid catalysts with well-defined structures, environmentally benign, with high catalytic activity, easy separation, and high chemical stability is the most important area of industrial and environmental concern. Over the past few decades, porous conjugated polymers have been employed as stable catalyst supports for various organic transformations. Among these materials, graphitic carbon nitride (g-C3N4) has been widely studied in the field of photocatalysis and heterogeneous catalysis, due to its high surface area and great physical and chemical stability. Herein, we report the synthesis of sulfonated graphitic carbon nitride (Sg-C3N4) as an efficient solid acid catalyst for the preparation of various biologically nitrogen-containing heterocyclic compounds under mild reaction conditions.

Corncob lignocellulose for the production of furfural by hydrothermal pretreatment and heterogeneous catalytic process

RSC Advances ◽  
2015 ◽  
Vol 5 (74) ◽  
pp. 60264-60272 ◽  
Author(s):  
Aojie Deng ◽  
Junli Ren ◽  
Huiling Li ◽  
Feng Peng ◽  
Runcang Sun
Keyword(s):  
Heterogeneous Catalysis ◽  
Solid Acid ◽  
Solid Acid Catalyst ◽  
Environmentally Friendly ◽  
Acid Catalyst ◽  
Hydrothermal Pretreatment ◽  
Heterogeneous Catalytic Process ◽  
Step Process ◽  
Heterogeneous Catalytic ◽  
Furfural Production

In this paper, an environmentally-friendly two-step process for furfural production was developed by the hydrothermal pretreatment of corncob and the heterogeneous catalysis of the hydrolysate using a solid acid catalyst.

Preparation and Characterization of WO3/ZrO2 Solid Acid Catalyst with Hierarchically Porous Structure

2011 ◽  
Vol 32 (4) ◽  
pp. 647-651
Author(s):  
Chongcheng CHEN ◽  
Hangrong CHEN ◽  
Jianchang YU ◽  
Zhengqing YE ◽  
Jianlin SHI
Keyword(s):  
Porous Structure ◽  
Solid Acid ◽  
Solid Acid Catalyst ◽  
Acid Catalyst ◽  
Hierarchically Porous ◽  
Hierarchically Porous Structure
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