ผลงานตีพิมพ์ทั้งหมด

Simulation of CO2 Adsorption to Enhance Adsorbent Material Efficiency

Supawon Sangsuradet, Patcharin Worathanakul

Key engineering materials · 2018

Computer simulation techniques have gained many attentions. The objective of this research was to study influence of the exchangeable cations of Group 1A (Li+, Na+, K+, Rb+, Cs+) on the CO2 adsorption in the system using Grand Canonical Monte Carlo (GCMC) simulation. In this simulation, zeolite is a simulation box. The interaction potential simulation with Lennnard-Jones potential showed that Li+ and CO2 had the greatest molecular attraction with Li+ having the highest number of CO2 molecules in the simulation box. The number of CO2/molecules in the simulation box are as followed with Li+ > Na+ > K+ > Rb+ > Cs+.

パーム油工場のフライアッシュから調製した活性化ゼオライト13Xの表面特性とCO_2吸着容量【Powered by NICT】

Kongnoo Aroon, Tontisirin Supak, Patcharin Worathanakul, Phalakornkule Chantaraporn

Fuel · 2017

Surface characteristics and CO 2 adsorption capacities of acid-activated zeolite 13X prepared from palm oil mill fly ash

Aroon Kongnoo, Supak Tontisirin, Patcharin Worathanakul, Chantaraporn Phalakornkule

Fuel · 2016

Influence of Different Preparation Methods of Copper Loading on Na-Y Zeolite for Green Gas Emission

Patcharin Worathanakul, Nattachar Rakpasert

International Journal of Environmental Science and Development · 2016

This research was focused on different preparation methods of copper loading on zeolite.Cu cation supported on Na-Y zeolite (Cu-Y) was prepared by aqueous solution ion exchange and incipient wetness impregnation methods.Different amounts of copper (II) were loaded in the Na-Y zeolite.The catalysis materials were characterized by X-ray diffraction, X-ray fluorescence and Brunauer-Emmett-Teller.The results show that Cu loading did not change the structure of Na-Y zeolite.The obtained Cu/Y has enlarged pore size and octahedral shaped crystal with approximately 0.19 ± 0.08 μm diameter.5.5 wt.% Cu/Y with impregnation method clearly exhibits a higher BET surface area and a total pore volume than 5.5 wt.% solution ion exchanged.

Development of NaY zeolite derived from biomass and environmental assessment of carbon dioxide reduction

Patcharin Worathanakul, Patchaya Tobarameekul

MATEC Web of Conferences · 2016

Carbon dioxide is one of greenhouse gases. The carbon dioxide caused by the industry activities and impact to the global warming. The objectives of this research were to synthesize NaY zeolite from bagasse ash as silica source and loaded with different weight percentage of Cu(II) for carbon dioxide reduction. The carbon footprint of Cu/Y zeolite for carbon dioxide reduction was calculated. The synthesized NaY zeolite from bagasse ash can be easily formed at Si/Al ratio of 0.75 with the additional heat after crystallization 70 °C for 1 hour. The crystal size of NaY zeolite was approximately 0.22−0.37 μm diameter. The results of carbon dioxide adsorption were increased when the flow rate of carbon dioxide decreased. Finally, the carbon footprint value was shown that synthesis step was shown the highest of greenhouse gas emission. This research can increase the value of wastes and reduce pollution emission.

Diethanolamine impregnated palm shell activated carbon for CO 2 adsorption at elevated temperatures

Aroon Kongnoo, Punyanich Intharapat, Patcharin Worathanakul, Chantaraporn Phalakornkule

Journal of environmental chemical engineering · 2015

Activated Carbon from Bagasse for Syrup Decolorization as an Alternative for Waste Management and the Assessment of Carbon Footprint

Nareerat Nachat, Patchaya Tobarameekul, Patcharin Worathanakul

Environment and Natural Resources Journal · 2014

The aims of this research were to produce activated carbon from sugarcane bagasse using carbon dioxide as an activating agent for syrup decolorization and to calculate its carbon footprint as an alternative waste management method. Sugarcane bagasse was prepared from carbonization process with a nitrogen flow rate of 0.2 L/min at temperatures of 500°C, 550°C, and 600°C for 20, 40, and 60 mins., respectively. A carbonization condition of 550°C for 40 mins was used to activate the sample with nitrogen and carbon dioxide at a temperature of 800°C. Activation time and ratios between nitrogen and carbon dioxide were compared to the existing chemical resin method for syrup decolorization. ICUMSA method was used at temperatures of 70°C-75°C and a pH of 7. Carbon footprint of 0.5 g activated carbon for syrup decolorization was 1.51 kgCO2-eq and 66% of carbon footprint value come from utilization step.

Physicochemical Properties and Different Sequence of Metal Loading (CuFe) Over Nanoporous of SUZ-4 Zeolite

Choompoonut Pornrattanapimolchai, Patcharin Worathanakul

Journal of Nanoscience and Nanotechnology · 2013

Different sequence of Cu and Fe loading over nanoporous SUZ-4 zeolite were prepared by incipient wetness impregnation method. K/SUZ-4 zeolite was prepared with SiO2:Al2O3 molar ratio of 21.2 under hydrothermal process at 150 degrees C, 250 rpm for 1 day using tetraethylammonium hydroxide (TEAOH) as a template. Copper(II) and Iron(III) were loaded in K/SUZ-4 with 2.3 and 5.5 wt.% of Copper(II) and 1.0 and 5.0 wt.% of Iron(III). The physico-chemical characterization of CuFe/SUZ-4 were investigated using X-ray powder diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), BET-N2 adsorption, Scanning electron microscopy (SEM) and chemical element analysis. The results show the several types of sequential loading of Cu and Fe metals did not change the structure and pore size of nanoporous SUZ-4 zeolite. The obtained CuFe/SUZ-4 zeolites has a narrow pore size distribution with approximately 0.06 microm diameter with 0.66 microm length of needle crystal shape.

Fe2O3–SiO2 Nanocomposite Derived from Bagasse Ash for Cr(VI) Removal

Patcharin Worathanakul, Panchana Mothong, Pimluck Engkawara

Journal of Biobased Materials and Bioenergy · 2013

Fast Crystallization of SUZ-4 Zeolite with Hydrothermal Synthesis: Part I Temperature and Time Effect

P. Vongvoradit, Patcharin Worathanakul

Procedia Engineering · 2012

SUZ-4 zeolites were synthesized by hydrothermal technique under autogenous pressure with SiO2:Al2O3 ratio of 21.22 using silica-sol and tetraethlyammonium hydroxide as a silica source and a template, respectively. Effect of temperature with 150, 165, and 180°C and crystallization time with 24, 18, and 12h were studied to obtain the suitable conditions at crystallization. SUZ-4 zeolite synthesis using short time compared to the conventional method was successful synthesized. The synthesized SUZ-4 zeolites were characterized using X-ray powder diffraction (XRD), scanning electron microscopy (SEM), BET-N2 adsorption, and X-ray fluorescence (XRF). The results show that SUZ-4 zeolite was obtained from rapid crystallization having a narrow pore size distribution and needle-shaped crystals. Highly crystallined SUZ-4 depended on enhanced temperature and time of crystallization conditions.