Asst.Prof.Dr. Chawalit Ngamcharussrivichai
ผู้ช่วยศาสตราจารย์ ดร. ชวลิต งามจรัสศรีวิชัย

 

 

 

 
 
B.Sc. (Chem.Eng.), (2nd Hons) Chulalongkorn University, Thailand
M.Sc. (Appl.Chem.), The University of Tokyo, Japan
Ph.D. (Appl.Chem.), The University of Tokyo, Japan
 
Office hour : Mon-Thu 16.00-17.00
 

Synthesis, Modification, and Surface Characterization of Zeolitic and Mesoporous Materials

Zeolites and mesoporous molecular sieves have attracted a lot of attention in several areas of research and industrial application, such as catalysis and adsorption, due to their uniquely periodic channel structures with well-defined pore sizes which insert shape-selectivity properties, and their oxide framework which can accommodate hetero-metal atoms, altering physicochemical properties to meet the application requirements. In our research unit, the zeolitic and mesoporous materials are synthesized mainly via hydrothermal method. Modification is focused on introduction of hetero-metal atoms into their oxide matrix, and functionalization of their surface via chemical grafting. FT-IR spectroscopy with study of probe molecules adsorption is applied to characterize active surface species of the materials.

Catalyst Technology

Research is aimed to develop catalysts having appropriate physicochemical properties and sufficient catalytic performance for the chemical processes such as biodiesel and fine chemicals production, gasification, and fuel cell. The relevant catalysts include metal oxides and metal-supported oxides prepared via various procedures.

Environmental Technology

As a consequence of the environmental issues, control of emission from vehicles and industrial processes became strict these days. Our attempt is to minimize toxic gases and heavy metals, which are emitted to environment during coal and liquid hydrocarbon combustion and chemical process operation. The technology is focused on low-temperature adsorption using our developed absorbents.

Biodiesel Production

Conventional biodiesel production through homogeneous base catalysis using NaOH or KOH has many drawbacks, particularly consuming a large amount of water for removing residual base and ion from biodiesel product. To minimize wastewater and reduce purification steps, we are developing technology for biodiesel production through heterogeneously catalyzed transesterification of vegetable oils with small alcohols under mild conditions at 60 - 80ºC and near 1 atm. Various acidic and basic catalysts are designed and synthesized in our laboratory. The transesterification is studied both in batch and continuous reactors.


Yoosuk, B., Kim, H, J., Song, C., Ngamcharussrivichai, C., Prasassarakich, P. (2008) "Highly active MoS2, CoMoS2 and NiMos2 unsupported catalysts prepared by hydrothermal synthesis for hydrodesulfurization of 4,6-dimethyldibenzothiophene" Catalysis Today, 130, 14-23.

Ngamcharussrivichai, C., Imyim, A., Li, Xiaohong., and Fujimoto, K. (2007) "Active and Selective Bifunctional Catalyst for Gasoline Production through a Slurry-Phase Fischer-Tropsch Synthesis" Ind. Eng. Chem. Res, 46, 6883-6890.

Ngamcharussrivichai, C., Wiwatnimit, W., Wangnoi, S. (2007) "Modified dolomites as catalysts for palm kernel oil transesterification" Journal of Molecular Catalysis A: Chemical 276, 24-33.

Ngamcharussrivichai, C., Liu, X., Li, X., Vitidsant, T., Fujimoto, K. (2007) "An active and selective production of gasoline-range hydrocarbons over bifunctional Co-based catalysts" Fuel, 86, 50-59.

Yoosuk, B., Kim, J.H., Song, C., Ngamcharussrivichai, C., Prasassarakich, P., 2006, "Highly active unsupported NiMo sulfide catalysts from direct hydrothermal synthesis for deep hydrodesulfurization of 4,6-dimethyldibenzothiophene", Proc. of 231st

Ngamcharussrivichai, C. ; Wu, P.; Tatsumi, T. "Catalytically Active and Selective Centers for Production of e -Caprolactam through Liquid Phase Beckmann Rearrangement over H-USY Catalyst" Appl. Catal. A 288 (2005) 158.

Ngamcharussrivichai, C. ; Wu, P.; Tatsumi, T. "Active and Selective Catalyst for Liquid Phase Beckmann Rearrangement of Cyclohexanone Oxime" J. Catal. 235 (2005) 139 .

Ngamcharussrivichai, C.; Wu, P.; Tatsumi, T. “Catalytically Active and Selective Centers for Liquid Phase Beckmann Rearrangement of Cyclohexanone Oxime” 92nd Catalysis Forum, Osaka, Japan, March 29 – 30, 2004.

Ngamcharussrivichai, C.; Wu, P.; Tatsumi, T. “Active and Selective Catalyst for Liquid Phase Beckmann Rearrangement of Cyclohexanone Oxime” 53rd Petroleum and Petrochemical Forum, Tokyo, Japan, May 17 – 18, 2004.

Ngamcharussrivichai, C.; Wu, P.; Tatsumi, T. “Liquid-Phase Beckmann Rearrangement of Cyclohexanone Oxime over Mesoporous Molecular Sieve Catalysts” J. Catal. 227 (2004) 448.

Ngamcharussrivichai, C.; Wu, P.; Tatsumi, T. “Selective Production of e-Caprolactam via Liquid-Phase Beckmann Rearrangement over HUSY Catalyst” Chem. Lett. 33 (2004) 1288.

Ngamcharussrivichai, C.; Wu, P.; Tatsumi, T. “Selective Production of ?-Caprolactam via Liquid Phase Beckmann Rearrangement over HUSY Catalyst” 91st Catalysis Forum, Yokohama, Japan, March 26 – 27, 2003.

Ngamcharussrivichai, C.; Wu, P.; Tatsumi, T. “Highly Selective Production of ?-Caprolactam through Liquid-Phase Beckmann Rearrangement over HUSY Catalyst” 9th Korea – Japan Symposium on Catalysis, Pohang, Korea, May 14 – 17, 2003.

Ngamcharussrivichai, C.; Wu, P.; Tatsumi, T. “A Dramatic Enhancement of Catalytic Performance by Water in Liquid Phase Beckmann Rearrangement” 90th Catalysis Forum, Hamamatsu, Shizuoka, Japan, September 18 – 21, 2002.

Ngamcharussrivichai, C.; Wu, P.; Tatsumi, T. “Liquid-phase Beckmann Rearrangement over BEA Zeolites and Mesoporous Molecular Sieves” 79th Japan Chemistry Conference, Kobe, Japan, March 28 – 31, 2001.

Ngamcharussrivichai, C.; Wu, P.; Tatsumi, T. “Liquid Phase Beckmann Rearrangement over Mesoporous Molecular Sieves” International Symposium on Acid – Base Catalysis IV, Matsuyama, Ehime, Japan, May 7 – 12, 2001.

Ngamcharussrivichai, C.; Wu, P.; Tatsumi, T. “Liquid-phase Beckmann Rearrangement Catalyzed by Large-pore Zeolites and Mesoporous Molecular Sieves” 13th International Zeolite Conference, Montpellier, France, July 8 – 13, 2001.

Tatsumi, T.; Ngamcharussrivichai, C. “Beckmann Rearrangement Catalyzed by Large-pore Zeolite and Mesoporous Molecular Sieve Catalysts” 1st Green & Sustainable Chemistry Symposium, Tokyo, Japan, October 12 – 13, 2000.

Ngamcharussrivichai, C.; Wu, P.; Tatsumi, T. “Catalytic Activity of Mesoporous Molecular Sieves in Liquid-phase Beckmann Rearrangement” 30th Petroleum & Petrochemical Forum, Tokyo, Japan, November 6 – 7, 2000.

Faculty member

Supporting staff
Technicians
Researchers
Students
 
Head of Department
Full-time Faculties

Prof.Dr.
Pattarapan Prasassarakich

Assoc.Prof.Dr.
Lursuang Mekasut
Assoc.Prof.Dr.
Pornpote Piumsomboon
Assoc.Prof.Dr.
Somkiat Ngamprasertsith
Assoc.Prof.Dr.
Khantong Soontarapa

Assoc.Prof.Dr.
Kejvalee Pruksathorn

Assoc.Prof.Dr.
Mali Hunsom
Assoc.Prof.Dr.
Nattaya Pongstabodee
Asst.Prof.Dr.
Suchaya Nitivattananon
Asst.Prof.Dr.
Prapan Kuchonthara
Asst.Prof.Dr.
Prasert Reub-roycharoen
Asst.Prof.Dr.
Chawalit Ngamcharussrivichai
Asst.Prof.Dr.
Napida Hinchiranan
Asst.Prof.Dr.
Sirilux Pompradub
Dr.
Nisit Tantavichet
Dr.
Kunakorn Poochinda

Dr.
Benjapon Chalermsinsuwan
Nathapol Pintuyothin
Emeritus Professors
Prof.Dr.
Somsak Damronglerd
Assoc.Prof.
Kunchana Bunyakiat
Asst.Prof.
Samran Tungtong
Dr.
Pienpak Tasakorn