Lta Zeolites as Catalysts for Transesterification of Glycerol with Dimethyl Carbonate DOI
Jolanta Kowalska‐Kuś, Agnieszka Held, K. Nowińska

et al.

Published: Jan. 1, 2023

The objective of this study was to investigate the use LTA-structured zeolites as catalysts for synthesizing glycerol carbonate through transesterification with dimethyl carbonate, under mild reaction conditions. To evaluate catalysts, a range characterization techniques, including XRD, AAS, SEM, TPD-NH3, TPD-CO2, and FT-IR probe molecules like pyridine pyrrole, along elemental analysis, were employed. investigation focused on various forms (with K, Na, Ca cations) assess their impact activity, particular attention type ion utilized basicity. Among these zeolites, K-Na-LTA (3A) demonstrated most promising performance, achieving conversion rates ranging from 55% 77%. Moreover, increasing basicity in 3A led higher yield. Encouragingly, all tested samples exhibited 100% selectivity, exclusively producing desired carbonate. However, during catalyst recycling, decrease observed, likely due leaching active sites into medium. Methanol identified potential agent responsible removal potassium ions, process.

Language: Английский

Recent advances in processes and catalysts for glycerol carbonate production via direct and indirect use of CO2 DOI Creative Commons

Patcharaporn Inrirai,

John Keogh, Ander Centeno‐Pedrazo

et al.

Journal of CO2 Utilization, Journal Year: 2024, Volume and Issue: 80, P. 102693 - 102693

Published: Feb. 1, 2024

Glycerol can be utilised as a renewable feedstock in several chemical reactions, including carbonation, carbonylation, transesterification, and oxidation. Among the conversions, production of glycerol carbonate is environmentally most attractive, it also utilises CO2 carbon source, C1 feedstock, key to accelerate pursuit decarbonization net-zero goals. The divided into two main pathways i.e., direct indirect route based on utilisation CO2. There has been much interest conversion with molecular CO2, due its potential for sustainability ecological advantages. Moreover, this process could directly minimising levels atmosphere. involve source synthesis reactants, instance organic carbonates urea. These reactants are employed raw materials production. It important note that each reaction own set advantages drawbacks. However, factor all processes lies high catalytic performance suitable catalyst optimal conditions enhance yield carbonate. This review aims evaluate recent progress made design produce via both pathways. In route, systems heterogenous catalysts, condition considered. Finally, suggested perspectives future direction focusing presented.

Language: Английский

Citations

18
Production of glycerol carbonate from glycerol and carbon dioxide using metal oxide catalysts DOI

Parvaneh Koranian,

Ajay K. Dalai,

Ramaswami Sammynaiken

et al.

Chemical Engineering Science, Journal Year: 2023, Volume and Issue: 286, P. 119687 - 119687

Published: Dec. 29, 2023

Language: Английский

Citations

16
Structural study of mixed metal oxide catalysts comprising Mg, Ca, and Al used for upgrading biodiesel byproduct glycerol to glycerol carbonate DOI

Parvaneh Koranian,

Ajay K. Dalai,

Ramaswami Sammynaiken

et al.

Applied Catalysis A General, Journal Year: 2024, Volume and Issue: 679, P. 119727 - 119727

Published: April 5, 2024

Language: Английский

Citations

6
Glycerol Carbonate Synthesis: Critical Analysis of Prospects and Challenges with Special Emphasis on Influencing Parameters for Catalytic Transesterification DOI Creative Commons
Vijayalakshmi Gosu,

Shivali Arora,

Verraboina Subbaramaiah

et al.

ACS Sustainable Resource Management, Journal Year: 2024, Volume and Issue: 1(5), P. 816 - 841

Published: April 25, 2024

Due to the global depletion of natural resources, developing economically and environmentally sustainable energy sources is critical. Biodiesel can substitute for diesel without significant modification existing engines. production has accelerated in recent years, because aggressive government policies incentives meet demand environmental concerns. A surplus amount glycerol (Gly) generated during biodiesel as a byproduct. Thus, viable routes valorization Glyl crucial sustainability industry. Valorization Gly-to-glycerol carbonate (Glc) considered an attractive route due its wide industrial applicability. This paper discusses potential synthesis including glycerolysis urea, direct carbonation Gly with CO2, enzymatic transesterification Gly, catalytic alkyl produce Glc. addresses performance various homogeneous heterogeneous catalysts used Glc synthesis. Among routes, dimethyl (DMC) green friendly, operates under mild reaction conditions, industrially feasible process high selectivity yield. In order achieve yield Glc, key influencing parameters such catalyst dose, molar ratio DMC/Gly, temperature, time, basic sites are discussed. Repurposing enhances economics. Finally, this suggests future prospects pathways

Language: Английский

Citations

6
Production of glycerol carbonate by coupling glycerol and CO2 over various metal oxide catalyst DOI Creative Commons
Yihu Ke,

Huanhuan Xu,

Xue Wang

et al.

Journal of CO2 Utilization, Journal Year: 2024, Volume and Issue: 83, P. 102813 - 102813

Published: May 1, 2024

A series of metal oxides, i.e., CuO、NiO、Co3O4、ZrO2、Al2O3, catalysts were prepared by hydrothermal method and evaluated in the production glycerol carbonate coupling CO2 under lower temperature. The results show that CuO showed best catalytic performance (glycerol conversion selectivity 89.0 % 69.4 %, respectively) at 120 ℃ 3.0 MPa for 5 h. This is highest yield using same mothed reported literature so far. structures, morphologies surface properties characterized X-ray powder diffraction (XRD), Scanning electron microscopy (SEM), Transmission (TEM), N2 adsorption-desorption, Temperature programmed reduction (H2-TPR), Fourier transform infrared spectroscopy (FT-IR), photoelectron (XPS), desorption (TPD). It speculated high activity mainly depends on its unique structure acid-base physicochemical properties. In addition, catalyst was used 7 times without obvious deactivation, which suggesting this catalysis has excellent reusability.

Language: Английский

Citations

6
Recent advances in bio-glycerol valorization to glycerol carbonate by heterogenous base-catalyzed transesterification DOI
Shalini Sahani, Siddhi Jaiswal, Sadhna Mishra

et al.

Molecular Catalysis, Journal Year: 2023, Volume and Issue: 550, P. 113508 - 113508

Published: Sept. 18, 2023

Language: Английский

Citations

11
Glycerol as a Feedstock for Chemical Synthesis DOI Creative Commons

M.H. Nurul Husna,

Yasemin Tabak,

Meltem Yıldız

et al.

ChemBioEng Reviews, Journal Year: 2024, Volume and Issue: unknown

Published: Sept. 26, 2024

Abstract Glycerol, defined simply as a colorless, sweet syrupy liquid extracted from fatty substances through saponification, is an alcohol with three hydroxyl (OH–) groups in its structure. Glycerol has many uses the consumer market. It used primarily personal care products, adhesive and sealing agent applications. whose name propane‐1,2,3‐triol, standardized by International Union of Pure Applied Chemistry (IUPAC), CHO open formula CH 2 OH–CHOH–CH OH. can be said that glycerol, by‐product biodiesel, produced very high quantities. Retention glycerol will lead to cost increases environmental problems may directly affect development biodiesel Due supply market large quantities, prices have hit bottom, therefore, income profitability production factories sale decreased. This situation clearly shows excess now poses obstacle developing article aims list valuable chemicals into which quantities by‐product, converted under single heading detail studies carried out on this subject.

Language: Английский

Citations

4
ETS-10 zeolite – a potential material for catalyst and adsorption: a critical review DOI Creative Commons

Bich‐Ngoc Duong,

Thi-Phuong-Tu Nguyen,

Nguyễn Quang Hưng

et al.

Desalination and Water Treatment, Journal Year: 2025, Volume and Issue: unknown, P. 101045 - 101045

Published: Feb. 1, 2025

Language: Английский

Citations

0
Manipulation of Oxygen Vacancy on a CeO2 Catalyst for the Carbonylation of Glycerol with CO2 DOI
Bowen Tan,

Danru Xu,

Mengmeng Jin

et al.

Industrial & Engineering Chemistry Research, Journal Year: 2025, Volume and Issue: unknown

Published: March 10, 2025

Language: Английский

Citations

0
One-Step Molten Salt Constructing Double S-Scheme K0.2WO3/NiO/NiWO4 Heterojunction for Photocatalytic CO2 Reduction DOI Creative Commons
Wentao Xiang,

Zhenzhen Yu,

Rui Gao

et al.

Molecules, Journal Year: 2025, Volume and Issue: 30(8), P. 1804 - 1804

Published: April 17, 2025

Rapid charge separation and transfer is the key scientific problem in photocatalysis. The construction of S-scheme heterojunction one effective strategies to promote maintain strong redox properties. Herein, NiO, K0.2WO3, NiWO4 ternary double K0.2WO3/NiO/NiWO4 (W/NiO) was created by a one-step molten salt method. Ultraviolet-visible (UV-Vis) diffuse reflectance spectra, photoluminescence (PL) photoelectrochemistry tests, other analyses revealed that heterostructure broadened spectral response range NiO promoted its photocarriers. Compared with pristine modified enhanced surface adsorption water molecules accumulation intermediate product HCOO−, optimized CO2 reduction system, realizing improved CO yield 373 μmol·g−1·h−1 Ru(byp)32+/ethanolamine system. This study indicates could facilitate efficient photogenerated separation, thereby achieving high activity selectivity for photoreduction. Our work provides reference heterojunction.

Language: Английский

Citations

0