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Petro - Theses: Recent submissions

Now showing items 1-20 of 1415

Influences of biofriendly amino acids on methane hydrate formation for natural gas storage and transportation application

Chuvich Chaovarin (Chulalongkorn University, 2021)

Solidified natural gas (SNG) is an appealing option for storing natural gas in the form of clathrate hydrates. However, it has some limitations, particularly the slow rate of hydrate formation and the requirement for severe ...
Sustainable two-step MINLP heat exchanger network synthesis with practical detailed design

Thanawat Boonvaerojkul (Chulalongkorn University, 2021)

Due to sustainable development that focuses on energy conservation, decreasing emissions and environmental effect, the research of heat exchanger network synthesis (HENS) is still necessary and challenging. Most academic ...
Comparison of various chemical pretreatment methods of lignocellulosic biomass

Ornuma Trisinsub (Chulalongkorn University, 2014)

Rice straw is one of Thailand’s agricultural biomass feedstocks. An effective way to eliminate rice straw is by changing it to biofuel such as butanol. A chemical pretreatment process is usually used to disrupt the complex ...
The study of oxygenated compounds for oil fingerprinting application

Khairunisa Betariani (Chulalongkorn University, 2022)

Oil spills have a large impact on the marine and coastal environments. The characterization of petroleum or its products spilled in the environment to its source rocks is an important tool to assist in the resolution of ...
Blends of low-density polyethylene with nylon compatibilized with sodium-neutralized carboxylate ionomer : Phase morphology and mechanical properties

Pornsri Pakeyangkoon (Chulalongkorn University, 2005)
Layer-by-layer Surface Modification of Polymer Filament for Catalytic 3D Printed Parts

Pornnutcha Thadasri (Chulalongkorn University, 2020)

Catalyst was constructed in form of microreactor by fused deposition modeling (FDM) or 3D printing method that allow micro scale customization in order to achieve high detail construction. Poly (lactic acid) (PLA) and Poly ...
Solid-Liquid-Polymer Mixed Matrix Membranes for Gas Separation: Silicone Rubber Membranes Filled with NaX and KY Zeolites Adsorbed PEG

Sitthikiat Boonchoo (Chulalongkorn University, 2020)

Carbon dioxide (CO₂) is one of the major constituents of natural gas and biogas. The presence of high CO₂ content causes some serious problems including reduction of heating value and corrosion of equipment’s surface. ...
Silver Surface Enrichment on ZSM-5 Zeolites for the Catalytic Cracking of n-Pentane to Produce Light Olefins

Warisara Angguravanich (Chulalongkorn University, 2020)

The effects of Ag-incorporation on the catalytic performance of ZSM-5 zeolites have been investigated. Since Ag-incorporation can promote the formation of light olefins and significantly enhance catalytic performance in ...
Production of Bio-jet Fuel from Palm Fatty Acid Distillate over TEOS-modified NiPd/ZSM-5 Catalysts

Umbon Boonsard (Chulalongkorn University, 2020)

Jet fuels are mainly derived from the refining of petroleum feedstock which has a negative impact to the environment as it emits greenhouse gases (GHG). Therefore, the development of an alternative and renewable jet fuel ...
Identification of Crude Palm Oils by the Analyses of Fatty Acids, Volatile Organic Compounds, and Carotenoids

Somluk Sanorkham (Chulalongkorn University, 2020)

An in-depth analysis of crude palm oil is important to differentiate crude palm oil (CPO) from different geographic provenance for administrative control purposes to prevent and solve the problem of smuggling CPO from ...
Pyrrolidine as a Promoter for Methane Hydrate Formation: Comparative Study on the Thermodynamics, Kinetics, and Morphology with Tetrahydrofuran

Siravich Junthong (Chulalongkorn University, 2020)

Solidified natural gas (SNG) via clathrate hydrates has been proposed as an alternative approach for natural gas storage and transportation due to its numerous advantages. However, a slow hydrate formation rate and a ...
Catalytic pyrolysis of polyethylene waste films into valuable upstream petrochemical products

Thanakorn Longsombun (Chulalongkorn University, 2005)
Preparation of coconut oil-incorporated natural rubber/pluronic/chitin whisker nanocomposite film for wound treatment

Supaporn Hansapaiboon (Chulalongkorn University., 2013)

The appearance of a scar after wound healing can be a major medical problem. Accordingly, new dressings for scar prevention/reduction are still being developed. In this study, natural rubber was used as a matrix to provide ...
Production of hydrogen and methane from alcohol wastewater using two-stage upflow anaerobic sludge blanket reactors

Monnipa Wonganu (Chulalongkorn University., 2013)

In this study, production of H₂ and CH₄ from alcohol wastewater was investigated using two-stage upflow anaerobic sludge blanket reactors (UASB). For the H₂ production step, the first 4-L UASB was operated at different COD ...
Polyamide/bacterial cellulose nanocomposite films for touchscreen applications

Weerasak Deachophon (Chulalongkorn University, 2015)

The flexible piezoelectric film of polyamide 11 (PA11)/bacterial cellulose (BC) was successfully prepared via a solution casting method and compressed to a thin film. The various weight percentage of extracted BC (0.2, ...
Preparation of mesoporous CeO2/ZrO2 for catalytic converter

Watthanavut Phathidee (Chulalongkorn University, 2015)

Currently, there is a great amount of ongoing research involved in catalytic converters because of their interesting applications in eliminating toxic gases from exhaust pipes. Many types of porous materials have been ...
Electrically responsive materials based on polycarbazole/sodium alginate bio-hydrogel blends for actuator

Watchara Sangwan (Chulalongkorn University, 2015)

Actuator is a mechanical device for displacing a system component under some kind of energy. For the actuating applications, it should provide a large deformation under activated energy. Generally. electric field is offer ...
Pt/HYcore-Pd/TiO2shell catalysts for one-pot reaction of jatropha oil to biojet fuel

Vorachit Umnuayporn (Chulalongkorn University, 2015)

Biojet fuel is obtained by the hydrodeoxygenation of triglycerides followed by hydrocracking and hydroisomerization reactions of the intermediate long chain hydrocarbons. In our previous studies, the catalysts for the two ...
Preparation of graphene oxide used for flexible electrodes and inverted polymer solar cells

Suwitra Charoensuk (Chulalongkorn University, 2015)

Graphene oxide (GO) consists of a two-dimensional (2D) sheet of covalently bonded carbon stoms bearing various oxygen functional groups (e.g., hydroxyl, epoxide and carbonyl groups). GO also has large specific area, excellent ...
The effect of molecular weight of PLGA on DEX-P loaded PLGA nanoparticles on encapsulation efficiency

Surachet Duanghathaipornsuk (Chulalongkorn University, 2015)

Biodegradable polymer is one of the most suitable polymers for drug delivery system in human body. One of these polymers is poly (D,L-lactide-co-glycolide) (PLGA), which has properties like biodegradability, biocompatibility, ...

Now showing items 1-20 of 1415

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