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Petro - Theses: Recent submissions

Now showing items 81-100 of 1415

Surface activity of Rh/KL catalyst in waste tire pyrolysis

Sakollapath Pithakratanayothin (Chulalongkorn University, 2014)

This research work elucidated the surface activity of KL and Rh/KL through the changes of hydrocarbon compounds in tire-derived oil (TDO). Maltenes, TDOs after separation of asphaltene, were analyzed by using a comprehensive ...
Catalytic pyrolysis of waste tire using Cu- and Zn-modified catalysts

Ritthichai Yuwapornpanit (Chulalongkorn University, 2014)

This work studied the effects of Cu- and Zn-loaded catalysts on waste tire pyrolysis products. Several researchers succeeded in the uses of copper in selective hydrogenation applications and the uses of zinc in light alkane ...
Biobutanol production by immobilized clostridium beijerinckii TISTR1461 onto porous materials

Rapeephat Vichuviwat (Chulalongkorn University, 2014)

Butanol is an attractive fuel since it can be used as a fuel additive to reduce petroleum fuel consumption. However, traditional acetone-butanol-ethanol (ABE) fermentation has limitations-low productivity, butanol toxicity ...
Development of benzoxazine macrocycles for supramolecules/molecular necklace via click chemistry

Pronsiva Rungswang (Chulalongkorn University, 2014)

Molecular necklace is the development of supramolecular structure based on connected mocrocycles. The preparation of molecular necklace was reported in terms of molecular interlocking, molecular assembly, etc. In the past, ...
Creating value-added biodegradable multi-layered films with As-desired functions

Praphakorn Saiprasit (Chulalongkorn University, 2014)

Poly (lactic acid) (PLA), poly (butylene succinate) (PBS), and thermoplastic starch (TPS) are good models for biodegradable multi-layered films. In the first part, PLA and PBS were formed as multi-layered film. The results ...
Permeation study of indomethacin from polycarbazole/natural rubber blend film for electric field controlled transdermal delivery

Pornwalai Thorngkham (Chulalongkorn University, 2014)

The transdermal drug delivery system (TDDS) is an alternative route to the transport of medical species into the blood system through the skin. This method has been continuously developed and improved to overcome limitations ...
Effects of zeolites and amorphous materials on the phase diagram of chloronitrobenzenes

Pongpun Jukkaew (Chulalongkorn University, 2014)

Crystallization has been used for the separation of chlonitrobenzenes (CNBs), which are isomeric substances (o-, m-, and p-CNB) and important intermediates in chemical productions. In the experiments, a liquid mixture of ...
Development of electrospun nanofiber modified disposable electrode for biosensor applications

Pongpol Ekabutr (Chulalongkorn University, 2014)

A new type of biosensor was fabricated using a carbonized hybrid gold (Au)/graphene (G) nanowire and vapor-phase polymerization of conductive polymer constructed on a disposable screen-printed carbon electrode (SPCE). ...
Effect of amphiphilic molecules on asphaltene precipitation

Pongkhun Siriprasurtsilp (Chulalongkorn University, 2014)

The ability of amphiphilic molecules to stabilize crude oil by adsorption with asphaltenes is an active area of research. Based on the structure of amphiphilic molecules, one would expect these molecules to stabilize ...
Oily soil detergency with different surfactant systems

Pakhawadee Apaithetphanich (Chulalongkorn University, 2014)

Oleic acid based nonionic Gemini surfactants with 20 and 30 polyoxyethylene head groups (FE-1020E, FE-1030E), methyl ester sulfonates, anionic surfactants (MES) with different alkyl chain lengths (C14, C16 and C18), and ...
Catalytic cracking/Isomerization of hydrogenated biodiesel for producing biojet: catlayst formulation

Kamonchanok Jariyasin (Chulalongkorn University, 2015)

The formulation of Pt/HY catalyst which improves mechanical strength to avoid pressure drop in the reactor, by incorporating pseudo boehmite binder for the production of biojet fuel from hydrogen biodiesel was investigated. ...
Carbon footprint of organization: case studies of the petroleum and petrochemical college and office of the president, Chulalongkorn University

Jukkapun Kaewprom (Chulalongkorn University, 2015)

Carbon footprint is the cumulative amount of direct and indirect greenhouse gases (GHG) emissions associated with products, organizations or human activities. It is expressed in equivalent mass of carbon dioxide (CO₂ₑ). ...
Enhancement of CO2 gas adsorption of Highly porous material from poly(DVB)polyHIPE by using Layer-by-Layer Surface

Jirasuta Chungprempree (Chulalongkorn University, 2015)

PolyHIPE is a highly porous polymer synthesized from high internal phase emulsions using polystyrene (S) and polydivinylbenzene (DVB). The surface of polyHIPE was modified by Layer-by-Layer (LbL) technique by using alternate ...
Effects of different seedings on the crystallization of M-and p-CNB

Jatuporn Kanuengnuek (Chulalongkorn University, 2015)

Crystallization has been used for the separation of chloronitrobenzenes (CNBs), which are isomeric substances (0-, m-, and p-CNB) and important intermediates in chemical production. Effects of seeding including m-CNB, ...
Effect of polyelectrolytes on the synthesis of cerium oxide for photo-catalytic application

Jadsada Chavalitkul (Chulalongkorn University, 2015)

Photo-catalysis is a method to treat wastewater drained from apparel industries. Cerium oxide (CeO₂) or Ceria is a photo-catalyst which could be used to treat dyes in Wastewaters. Ag nanoparticles were synthesized by ...
Applications of silatrane

Hussaya Maneesuwan (Chulalongkorn University, 2015)

In this present work, silatrane was prepared and used as a silica source to synthesize bimetallic MCM-48 and TUD-1 via sol-gel process Fe-Ce-MCM-48, Fe-Ti-MCM-48 and Fe-Ti-TUD-1 mesoporous materials were successfully ...
Investigation of methane hydrate formation and dissociation kinetics with the presence of promoters for gas storage application

Atsadawuth Siangsai (Chulalongkorn University, 2015)

Gas hydrate is of interest for the process to store and transport gas. However, the slow kinetics and the storage capacity remained the obstruction. In this study, the hydrate promoters, including activated carbon, ...
Highly conductive carbon for applications in supercapacitors or batteries

Areeya Ninlerd (Chulalongkorn University, 2015)

Supercapacitors are new king of energy storage devices which have high efficiency and outstanding properties such as high power density and long life cycle. In order to reach high capacitance, choosing the electrode material ...
Activity study of metal loaded zeolites

Alisa Koovimol (Chulalongkorn University, 2015)

Carbon monoxide oxidation (CO oxidation) was used to reduce the amount of CO that is poison to the proton exchange membrane (PEM) fuel cells by using zeolite-A loading gold and platinum, as catalyst. The catalysts were ...
Study of CO2 capture process using aqueous ammonia

Akrawin Jongpitisub (Chulalongkorn University, 2015)

Carbon dioxide (CO₂) emissions to the atmosphere have become an issue for many industries, especially coal-fired power plants, due to their contribution to global warming. Many research projects are presently involved the ...

Now showing items 81-100 of 1415

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