Porous magnesia-alumina composite nanoparticle for biodiesel production

Chen, Yu-Shen; Yang, Che-Ming; Hoang, Thanh Truc Nguyen; Tsai, De‐Hao

doi:10.1016/j.fuel.2020.119203

Cited by 13 publications

(4 citation statements)

References 49 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…222−224 However, throughout the transesterification process, it is challenging to recycle and separate homogeneous base MOF catalysts, resulting in equipment damage throughout biodiesel usage. 225,226 In addition, considerable amounts of water are necessary for washing procedures to remove base MOF catalysts from obtained products. 227 In general, the effects of base-functionalized MOF catalysts on biodiesel yield are given in Table 2.…”

Section: Base Mofmentioning

confidence: 99%

“…It could be realized that the base connected to the MOF through interactions between molecules can be deduced to be unstable, and the activity of the catalyst through impregnation or encapsulation is less efficient than covalent bonding . On a commercial scale, biodiesel is usually generated using the transesterification process of triglyceride-containing oils with methanol or ethanol under a stoichiometric interaction. , For achieving the quick rate of reaction through deprotonation of alcohol during the homogeneous phase of liquid, base MOF catalysts are typically used. − However, throughout the transesterification process, it is challenging to recycle and separate homogeneous base MOF catalysts, resulting in equipment damage throughout biodiesel usage. , In addition, considerable amounts of water are necessary for washing procedures to remove base MOF catalysts from obtained products . In general, the effects of base-functionalized MOF catalysts on biodiesel yield are given in Table .…”

Section: Application In Biofuel Productionmentioning

confidence: 99%

See 1 more Smart Citation

A Review on Metal–Organic Framework as a Promising Catalyst for Biodiesel Production

Nguyen,

Sharma,

Dzida

et al. 2024

Energy Fuels

View full text Add to dashboard Cite

The rapid depletion of fossil-derived fuels along with rising environmental pollution have motivated academics and manufacturers to pursue more environmentally friendly and sustainable energy options in today's globe. Biodiesel has developed as an ecologically favorable alternative. However, the mass manufacturing of biodiesel on an industrial scale confronts substantial cost and pricing challenges. To address this issue, highefficiency catalysts with a large number of active sites are needed, resulting in increased biodiesel output and quality. Metal−organic frameworks (MOFs) have received a lot of interest as a catalyst for converting oils/fats or fatty acids into biodiesel. MOFs are polyporous materials that can alter pore size as well as topological structure. They serve as a versatile foundation for designing active sites to satisfy the unique needs of catalytic reactions and conversion pathways. The purpose of this current work is to shed light on the underlying mechanisms and essential properties of MOF-based catalysts used in biodiesel synthesis. In addition, several methods for connecting active sites inside MOFs are scrutinized, while the properties and usability of MOF-based catalysts for the biodiesel production process are completely compared to other catalysts. More importantly, limits and future research directions about the utilization of MOFs in the biodiesel synthesis route are also critically presented. In general, this review contributes to improved awareness about the potential of MOFs in the biodiesel production sector by investigating the primary mechanism and characteristics of MOF-based catalysts.

show abstract

Section: Base Mofmentioning

confidence: 99%

Section: Application In Biofuel Productionmentioning

confidence: 99%

A Review on Metal–Organic Framework as a Promising Catalyst for Biodiesel Production

Nguyen,

Sharma,

Dzida

et al. 2024

Energy Fuels

View full text Add to dashboard Cite

show abstract

“…Then, the base-driven S N 2 substitution can be applied to carry out the ring-closing epoxidation. Though it seems like a straightforward process to convert oversupplied glycerol into value-added epoxides, the second step is generally carried out with alkali metal hydroxides, which results in the massive formation of alkali halide waste salt formation and hence defeats the proposed target of a green and sustainable technology. ,,− …”

Section: Introductionmentioning

confidence: 99%

“…Solid-based catalysts, such as alkali earth metal oxides, are commonly used in industrial processes such as dehydration, condensation, isomerization, alkylation, polymerization, hydrogenation, esterification, and amination. − The development of a solid-based catalyst was by virtue of pursuing greener processes with less ecological waste and contamination through the replacement of homogeneous alkaline reagents. − In addition, a solid-based catalyst provides more flexibility in process conditions, allowing more extreme temperatures and pressures to be implemented for gas–solid, liquid–solid, or even gas–liquid–solid interfacial reactions. , …”

Section: Introductionmentioning

confidence: 99%

Sustainable Synthesis of Epoxides from Halohydrin Cyclization by Composite Solid-Based Catalysts

Chang

Chen

Tsai

et al. 2022

Ind. Eng. Chem. Res.

Self Cite

View full text Add to dashboard Cite

A facile synthesis of CaO- and MgO-based composite solid-based catalysts is demonstrated for a sustainable synthesis of epoxides from halohydrin cyclization (i.e., via heterogeneous catalysis). The cyclodehydrohalogenation of 3-chloro-1,2-propanediol (3-MCH) to glycidol (GLD) was chosen as the representative of the study. The activity, selectivity, and operation stability of the developed composite catalysts versus their material properties were studied through the establishment of a suitable synthesis, characterization, and performance testing platform. An X-ray diffractometer, a scanning electron microscope, a Brunauer–Emmett–Teller N2 adsorption analyzer, a chemisorption analyzer, and an inductively coupled plasma–optical emission spectrometer were used complementarily for the characterization of catalyst materials. The results show that we can successfully synthesize composite solid-based catalysts with adjustable chemical and physical properties, including surface basicity. The liquid–solid reaction system is useful for the mechanistic understanding of the cyclodehydrohalogenation of 3-MCH catalyzed by the solid-based catalysts, especially the byproduct generation paths and the catalyst deactivation by surface poisoning. The results show that the conversion rate of cyclodehydrohalogenation of 3-MCH to GLD was proportional to the amount of total basic sites on the catalyst, and the selectivity to GLD was proportional to the medium basicity strength of the catalyst. The fundamental understanding obtained in this study provides valuable design principles for composite solid-based catalysts for a wide variety of dehydrohalogenation reactions.

show abstract

Cu/MgO Reverse Water Gas Shift Catalyst with Unique CO₂ Adsorption Behaviors

Tsai,

Wu,

Lin

et al. 2024

Chemistry An Asian Journal

View full text Add to dashboard Cite

Activation of inert CO2 molecules for the reverse water gas shift (RWGS) reaction is tackled by incorporating magnesium oxide as a support material for copper, forming a Cu/MgO supported catalyst. The RWGS performance is greatly improved when compared with pure Cu or carbon supported Cu (Cu/C). Operating under a weight hourly space velocity (WHSV) of 300,000 mL·g‐1·h‐1, the Cu/MgO catalyst demonstrates high activity, maintaining over 70% equilibrium conversion and nearly 100% CO selectivity in a temperature range of 300‐600 °C. In contrast, both Cu/C and commercial Cu, even at ten‐times lower WHSV, can only achieve up to 40% of the equilibrium conversion and quickly deactivated due to sintering. Based on the studies of in‐situ temperature resolved infrared spectroscopy and temperature programmed desorption, the improved RWGS performance is attributed to the unique adsorption behavior of CO2 on Cu/MgO. Density functional theory studies provides a plausible explanation from a surface reaction perspective and reveals the spill‐over property of CO2 from MgO to Cu being critical.

show abstract

Porous magnesia-alumina composite nanoparticle for biodiesel production

Cited by 13 publications

References 49 publications

A Review on Metal–Organic Framework as a Promising Catalyst for Biodiesel Production

A Review on Metal–Organic Framework as a Promising Catalyst for Biodiesel Production

Sustainable Synthesis of Epoxides from Halohydrin Cyclization by Composite Solid-Based Catalysts

Cu/MgO Reverse Water Gas Shift Catalyst with Unique CO₂ Adsorption Behaviors

Contact Info

Product

Resources

About

Porous magnesia-alumina composite nanoparticle for biodiesel production

Cited by 13 publications

References 49 publications

A Review on Metal–Organic Framework as a Promising Catalyst for Biodiesel Production

A Review on Metal–Organic Framework as a Promising Catalyst for Biodiesel Production

Sustainable Synthesis of Epoxides from Halohydrin Cyclization by Composite Solid-Based Catalysts

Cu/MgO Reverse Water Gas Shift Catalyst with Unique CO2 Adsorption Behaviors

Contact Info

Product

Resources

About

Cu/MgO Reverse Water Gas Shift Catalyst with Unique CO₂ Adsorption Behaviors