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Petro - Theses: Recent submissions

Now showing items 21-40 of 1415

Aromatization of palm fatty acid distillate (PFAD) over HZSM-5 catalysts

Sunisa Anutamjarikun (Chulalongkorn University, 2015)

The catalytic reaction of palm fatty acid distillate (PFAD), a by-product from crude palm oil refining process, was investigated over HZSM-5 catalysts to produce petrochemical aromatics. The catalytic reaction was operated ...
Toughness enhancement of polyamide 12 with natural rubber via non-reactive and reactive compatibilions

Saravalee Saengthaveep (Chulalongkorn University, 2015)

This research work studied toughness enhancement of polyamide12 (Nylon12) by adding natural rubber (NR) via melt blending process. Copolymers of polystyrene/natural rubber (PS/NR) and polystyrene/maleated natural rubber ...
Development of natural rubber matrix using in electrical stimuli transdermal drug delivery application

Sanchalit Choowongapichat (Chulalongkorn University, 2015)

The transdermal drug delivery system (TDDS) is a system to the transport the specific dose of drug into the blood system through the skin. TDDS has been continuously developed and improved for suing with a wide variety of ...
Development of novel antibacterial wound dressing coated with calcium alginate loaded garcinia mangostana extract

Saikhim Panawes (Chulalongkorn University, 2015)

At the present, gauze is a most popular dressing, but traditional gauze is a non-create moist environment, non-antibacterial and non-blood coagulation material. Therefore, in this research, calcium alginate used to enhance ...
Comparative study on the effects of hollow silica and activated carbon on methane hydrate formation and dissociation

Rawipreeya Suesuan (Chulalongkorn University, 2015)

Both hollow silica activated carbon are attractive porous media because of their high specific area. High porosity, and high adsorption gas capacity The methane hydrate formation and dissociation were compared between the ...
Morphological design of polybenzoxazine by soft templating method

Pornpichaya Thawepornpuriphong (Chulalongkorn University, 2015)

Nanoporous material, especially porous carbon can be synthesized via many methods. However, some methods produced a broad pore-size distribution which might not be appropriate for certain application that required selective ...
Overcoming poly(lactic acid) brittleness based on balancing of crystalline and amorphous phases via approaches of compatible nucleation, plasticizer addition, and biaxial stretching

Piyawanee Jariyasakoolroj (Chulalongkorn University, 2015)

The present work aims to improve poly(lactic acid) (PLA) toughness through practical approaches based on crystalline and amorphous phases optimization (i.e. nucleating agent and plasticizer additions and process conditions ...
Influences of catalyst formulation on the catalytic activity of modified HZSM-5 in the aromatization of light paraffins

Phattharanid Thanatawee (Chulalongkorn University, 2015)

The aromatization of light paraffins was studied over extruded modified HZSM-5 catalysis. The HZSM-5 zeolite (SiO₂/AI₂/O₃ = 23) catalysts were sequentially treated by dealumination, Ga ion-exchange, and silylation via ...
Life cycle assessment studies of chemical and biochemical processes through the new LCsoft software-tool

Perapong Supawanich (Chulalongkorn University, 2015)

LCSoft software-tool has been developed to perform LCA as a stand-alone tool with ability to be integrated with other process design tools such as process simulation, economic analysis (ECON), and sustainable process design ...
Development of curcumin-based sensors for smart packaging application via Layer-by-Layer deposition and electrospinning

Orachitr Bijaisoradat (Chulalongkorn University, 2015)

Curcumin is a yellow pigment extracted from a spice called turmeric which is commonly used in food. It is also a pH-sensitive compound that has the ability to change color from yellow to orange when exposed with acidic and ...
Preparation of bacterial cellulose membranes from nata De coco with and without silver ions for CO2/CH4 separation

Yanin Hosakun (Chulalongkorn University, 2014)

Carbon dioxide removal from natural gas is an important process because the existence of carbon dioxide in natural gas contributes to pipeline corrosion, reduces the heating value, and takes up volume in the pipeline. In ...
Evaluation of mechanical, rheological and thermal properties of poly(trimethylene terephthalate)(PTT)/polythylene blend using compatibilizer based on carboxylate and Ionomer for automotive application

Wuttikorn Chayapanja (Chulalongkorn University, 2014)

Polymer blending is one way for development of new materials with excellent properties. In this study, poly (trimethylene terephthalate) (PTT) and polyethylene blended with maleic anhydride grafted high-density polyethylene ...
Steam reforming of CO2-containing natural gas with partial oxidation on Ni catalysts in corona discharge for synthesis gas production

Wasamon Ngamkala (Chulalongkorn University, 2014)

The objective of this work was to investigate a direct production of synthesis gas from a CO2-containing natural gas by steam reforming with partial oxidation on Ni catalysts in a corona discharge environment. The simulated ...
Catalytic dehydration of Bio-ethanol to hydrocarbons over SnOx-and SbOx-doped SAPO-34

Uruya Chinniyomphanich (Chulalongkorn University, 2014)

Recently, bio-ethanol used as a feedstock for catalytic dehydration to obtain aromatic compounds or light hydrocarbons received much attention. SAPO-34 has been employed as a solid acid catalyst for ethanol conversion to ...
Development of electromechanical properties of biocompatible gelatin as actuator application

Thawatchai Tungkavet (Chulalongkorn University, 2014)

Nanowire-Polypyrrole/gelatin. MWNT/gelatin, and graphene/gelatin hydrogel composites were fabricated by the dispersion of Nano fillers into the gelatin aqueous solution followed by the solvent casting. The electromechanical ...
Utilization of methane: methylation of benzene with methane and gas-to-liquids (GTL) via fischer-tropsch synthesis

Thani Jermwongratanachai (Chulalongkorn University, 2014)

During the past decades, studies on the conversion of methane, a main component of natural gas, into more valuable fuels or chemicals have received much attention. This is because liquid-petroleum reserves are becoming ...
Life cycle material flow analysis of PVC products in Thailand

Thanakorn Rodcharoen (Chulalongkorn University, 2014)

The purposes of this research work were to study material flows of selected PVC products based on life cycle approach (gate-to-grave) covering production, usage, and end-of-life and to develop models for life cycle material ...
Catalytic pyrolysis of waste tire using Cobalt and Iron modified catalysts

Suttipong Muenpol (Chulalongkorn University, 2014)

Pyrolysis of waste tire not only an alternative technique to handle waste tire problem, but also can recover worthy products such as petrochemicals, and light olefins, for examples, from waste tire. In order to increase ...
Methane dehydrogenation and coupling to ethylene using Ni/HZSM-5 catalysts

Suchada Kongbin (Chulalongkorn University, 2014)
Degumming of thai silk by low-pressure plasma treatment

Saros Salakhum (Chulalongkorn University, 2014)

Degumming of Thai silk was completed by using low pressure plasma with glow discharge. The plasma treatment was operated at discharge powers of 60, 250, 1000, and 2000 W. with exposure time varied at 5, 10, and 15 min, at ...

Now showing items 21-40 of 1415

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