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Petro - Theses: Recent submissions

Now showing items 61-80 of 1415

Process simulation of carbon dioxide capture using ionic liquid 1-ethyl-3-methylimidazolium acetate

Koon Khonkaen (Chulalongkorn University, 2014)

ในบรรดาเทคโนโลยีสมัยใหม่ที่ถูกสร้างขึ้นเพื่อนำมาแทนที่กระบวนการการจับก๊าซคาร์บอนไดออกไซด์หลังการเผาไหม้โดยใช้ตัวทำละลายเอมีน หนึ่งในเทคโนโลยีเหล่านั้นคือการใช้ของเหลวไอออนิก 1-เอทิล-3-เมทิลอิมิดาโซเลียม อะซิเตท ...
Measurement of minimum miscibility pressure of carbon dioxide in Thai crude oil

Kanjanapong Yernpeng (Chulalongkorn University, 2014)

The minimum miscibility pressure (MMP) between CO2 and petroleum crude was measured using a Parr reactor and the pressure decay technique. The effects of oil molecular weight and temperature on MMP were carried out using ...
Experimental measurement of diffusivity of carbon dioxide in lan krabue crude

Juthamas Janthothai (Chulalongkorn University, 2014)

Measurement of diffusivity of carbon dioxide (99.99% purity CO2) in Lan Krabue crude was carried out by using Parr reactor with a pressure decay method to estimate the decay of pressure over time. The diffusivity was done ...
Catalytic dehydration of Bio-ethanol to hydrocarbons : oxides of P, Sb, and Bi

Jaturapat Kittikarnchanaporn (Chulalongkorn University, 2014)

HZSM-5 has been known as a potential catalyst for the dehydration of ethanol to gasoline (ETG) because of its acid property and shape selectivity. Moreover, HZSM-5 had been used as the support of phosphorus oxide, antimony ...
Effect of metal type on cis-trans selectivity and stability of the catalyst for partial hydrogenation of FAMEs

Jakkrapong Jitjamnong (2014)

Biodiesel or fatty acid methyl ester (FAME) can be produced by transesterification from vegetable oils or animal fats with methanol. The main problems of biodiesel quality are oxidative stability and cold flow properties, ...
Rheology of cationic surfactant and fatty alcohol mixtures in the presence of hydroxyethyl cellulose

Jintana Nakarapanich (Chulalongkorn University, 1998)
Catalytic performance of Ni-based ceria-zirconia catalysts for hydrogen production: effect of Ni loading method

Kulthida Junsai (Chulalongkorn University, 2015)

Nickel supported on Ceria-Zirconia mixed oxide catalysts utilizing in catalytic partial oxidation of methane (CPOM) are drastically deactivated by carbon formation. Improving Ni dispersion by acquiring the preparation of ...
Multiple-contaminant water network synthesis

Kittichai Pungthong (Chulalongkorn University, 2015)

Water is the main resources for process industry. Many industrial companies pay very high cost in each year for the water usage. The saving on water usage decreases the operating and capital costs of company. Water network ...
Study of improving carbon dioxide adsorption capacity using adsorbents impregnated with piperazine

Danai Praekiat (Chulalongkorn University, 2014)

The adsorption of carbon dioxide (CO2) for the natural gas processing application was performed with adsorbents modified with piperazine (PZ). To optimize CO2 adsorption capacity, the effects of adsorption pressure, PZ ...
Autothermal steam reforming of acetic acid:/ catalytic activity and stability of Ni/Ce0.75Zr0.25O2 catalyst

Atsadang Traitangwong (Chulalongkorn University, 2014)
High performance and stability of copper loading on mesoporous ceria catalyst for the preferential oxidation of CO

Kanapos Wangkawee (Chulalongkorn University, 2015)

Copper (Cu) doped mesoporous (MSP) ceria catalysts with different Cu dopings were prepared by deposition-precipitation (DP) method for the preferential CO oxidation in a H₂- rich stream (CO-PROX). The synthesized MSP ceria ...
Methyl bromide synthesis via oxidative bromination of methane

Varinee Sirijantarat (Chulalongkorn University, 2014)

The thermodynamic stability of methane is a critical factor for methane utilization. Oxidative bromination of methane (OBM) is one of the reaction pathways to transform methane into more reactive reactant, methyl bromide ...
Selective hydrogenation of 1-Hexyne using PdNi/Al2O3 and NiMn/Al2O3

Kamonlada Khunkaew (Chulalongkorn University, 2015)

Vinyl acetylene and 1-butyne are by-products in mixed C4 separation processes and They must be eliminated due to safety concern. However, C4 acetylene can be upgraded to higher value hydrocarbons such as 1,3-butadiene and ...
Synthesis and characterization of polybenzoxazine-based carbon xerogels

Uthen Thubsuang (Chulalongkorn University, 2014)

In this present work, the porous carbon, called carbon xerogels, derived from polybenzoxazine (PBZ) were prepared via a sol-gel process prior to the carbonization. By using different types of solvents, the cluster growth ...
Antibacterial and anti-inflammatory biocompatible polymers for wound care

Thitikan Khampieng (Chulalongkorn University, 2014)

The application of a wound care material has been practiced in order to protect the wound from environments as well as to absorb exudate, reduce infections, and reduce inflammation, resulting in the promotion wound healing. ...
Solid-polymer mixed matrix membranes for CO2/CH4 separation: metal organic frameworks and polyetherimide

Tharinee Ketsuwan (Chulalongkorn University, 2014)

A mixed matrix membrane (MMM) consisting of a solid material dispersed in a polymer phase is considered a promising component in membrane-based technology for gas separation. In this work, a metal organic framework (i.e. ...
Influence of oxidation and nitrogen treatment on activated carbon for CO2 adsorption

Teerapat Surin (Chulalongkorn University, 2014)

Carbon dioxide (CO2) is the most influential greenhouse gas causing a rise in global surface temperature. The technique for capturing CO2 from post combustion flue gases, namely adsorption, is considered to be a promising ...
Optimatization of two-stages UASB system for H2 and CH4 production from cassava wastewater with added cassava residue

Tasanee Wangmor (Chulalongkorn University, 2014)

In this research, hydrogen and methane production from cassava wastewater with added cassava residue by using a two stage up flow anaerobic sludge blanket (UASB) system was investigated under thermophilic temperature (55 ...
Processing of proton exchange membrane for vanadium redox flow battery

Somchai Watpathomsub (Chulalongkorn University, 2014)

Vanadium redox flow battery (VRFB) is a rechargeable energy storage device that converts chemical energy into electrical energy. Commercially. VRFB uses perfluorosulfonic acid. Nafion, as a proton exchange membrane (PEM) ...
Preferential carbon monoxide oxidation (PROX) over Au-based catalyst

Sasiporn Chayaporn (Chulalongkorn University, 2014)

Preferential CO oxidation (PROX) is the most effective method for removal of CO from the reformate stream. Catalytic activity of Au/CeO2-ZrO2 with various atomic ratios of Ce/ (Ce + Zr) (0, 0.25, 0.5, 0.75, and 1), prepared ...

Now showing items 61-80 of 1415

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