DSpace Home
→
Faculty and Institute
→
Petroleum and Petrochemical College - Petro
→
Petro - Theses
→
Recent submissions

Petro - Theses: Recent submissions

Now showing items 101-120 of 1415

Enhancement of anaerobic digestion of cellulosic fraction in wastewater by microaeration

Oijai Khongsumran (Chulalongkorn University, 2014)

Effects of micro aeration on the anaerobic digestion of cassava wastewater with added cassava residue in the continuous stirred tank reactor (CSTR) system without temperature and pH control were studied. The results indicated ...
Production of biojet from hydrogenated biodiesel over Pt/HY catalysts: effect of zeolite crystal size

Nik Jadpon (Chulalongkorn University, 2014)

The use of bio jet fuel in commercial aviation has received considerable attention in recent years because it can solve the problems associated with petroleum- based fuels such as unstable prices and environmental issues. ...
Carbon dioxide and methane competitive adsorption on coconut shell activated carbon

Napaphat Samanwong (Chulalongkorn University, 2014)

The use of natural gas as a fuel in natural gas vehicles (NGVs) has become an attractive alternative to gasoline and diesel fuels because of its inherent clean burning characteristics. In adsorbed natural gas (ANG), natural ...
Ionic-liquid based separation of azeotropic mixtures

Kusuma Kulajanpeng (Chulalongkorn University, 2014)

y A methodology for screening of ionic liquids (ILs) as entrainers and for design of ILs -based separation processes in various homogeneous binary azeotropic mixtures is presented through two case studies: ethanol + water ...
Synthesis gas production from CO2-containing natural gas by combined steam reforming and partial oxidation in multi-stage gliding Are-discharge system

Krittiya Pornmai (Chulalongkorn University, 2014)

In this work, the reforming of CO2-containing natural gas was conducted under the alternating current AC gliding arc discharge plasma system at ambient conditions. The results reveal that the addition of steam content of ...
Adiponitrile hydrogenation over hickel supported on ceria-zirconia and ceria-zirconia-magnesia mixed oxide catalyst

Kantapong Mongkolhattee (Chulalongkorn University, 2014)

The gas phase hydrogenation of adiponitrile (ADN) to 1,6- hexamethylenediamine (HMDA) over nickel supported on ceria-zirconia and ceria-zirconia-magnesia mixed oxide catalysts was studied at atmospheric pressure. The ...
Effect of type and strength of electrolytes on the adsorption and adsolubilization into adsorbed CTAB on precipitated silica

Kanokpan Rattanapiboon (Chulalongkorn University, 2014)

The aim of this research was to evaluate the adsorption and adsolubilization of acetophenone into cetyltrimethylammonium bromide (CTAB) adsorbed on precipitated silica with different electrolyte types (NaCl, MgCl2, MgSO4, ...
Competitive surfactant adsorption of AOT and TWEEN 20 on gold using quartz crystal microbalance with dissipation

Jakkrit Thavorn (Chulalongkorn University, 2014)

Competitive surfactant adsorption of the anionic surfactant AOT and the nonionic surfactant Tween 20 on gold surface was investigated by using the quartz crystal microbalance with dissipation (QCM-D) at 25 ℃. The adsorption ...
Synthesis of methyl ester sulfonate surfactant from methyl ester

Hattaya Tulathammakit (Chulalongkorn University, 2014)

Methyl ester sulfonate (MES) is a potential anionic surfactant derived from palm oil methyl ester. MES shows several advantages, such as excellent cleaning properties, good biodegradability, and tolerance to hard water. ...
Hydrogen production by using methanol fuel processor over gold based catalysts

Chinchanop Pojanavaraphan (Chulalongkorn University, 2014)

In this work, the low-temperature methanol fuel processor (MFP) was developed by the uses of Au-based catalysts in both steam reforming (SRM) and preferential carbon monoxide oxidation (PROX) units in order to produce the ...
Enhancement of anhydrous proton conductive sulfonated poly (ether ether ketone) (SPEEK) membrane based on imidazole molecular mobility and SPEEK thermochromic phenomenon

Chatchai Jarumaneeroj (Chulalongkorn University, 2014)

The present work focuses on a systematic study of imidazole derivatives by varying the methylene units in urocanic acid system from mono to heptyl groups as an efficiency proton transfer channel. Methylene units introducing ...
Catalytic pyrolysis of waste tire using nickel promoted catalysts and core-shell composites

Witsarut Namchot (Chulalongkorn University, 2015)

In this work, the effects of nickel-promoted catalysts and different zeolite cores of core-shell structure composite materials on the species of waste tire pyrolysis products are investigated. Ni-doped catalysts were ...
Foam stability test for surfactants in enhanced oil recovery

Vipada Sansen (Chulalongkorn University, 2015)

One challenge of foam application for enhanced oil recovery is the stability of foam when it is in contact with oil in the reservoir. This research studied the effect of surfactant structures, concentrations, brine, alkanes ...
Photocatalytic degradation of acid orange 7 over p-n type photocatalysts under illumination and absence of light

Ummara Sittiwong (Chulalongkorn University, 2015)

Nowadays, a large amount of dyewastes, mainly synthetic dyes is continuously released by the textile industry. The component of this dyes, especially acid orange 7 (A07), can block a sunlight penetration and oxygen dissolution ...
Life cycle assessment of environmental impacts of end-of-life management of E-waste: a case study of CRT-Television

Sutthichai Khampheeraphapkul (Chulalongkorn University, 2015)

According to the Pollution Control Department (PCD), Thailand has about 2 to 2.5 million sets of TV being discarded in every year. At present, most of these wastes are still treated improperly which could cause severe ...
Solid acid catalyst for biodiesel production via esterification from oleic acid

Suppasate Dechakhumwat (Chulalongkorn University, 2015)

Esterification of oleic acid with methanol using treated solid residue as a catalyst was studied for biodiesel production. The solid acid catalyst was prepared by sulfonation of p-toluenesulfonic acid on corncob waste ...
Heat exchanger network synthesis/retrofit using MINLP stage-wise superstructure with non-isothermal mixing

Supiluck Koraviyotin; Kitipat Siemanond; Chulalongkorn University. The Petroleum and Petrochemical College (Chulalongkorn University, 2015)

To enhance the energy recovery through heat integration, heat exchanger network (HEN) synthesis has been introduced for industrial processes. The design of an optimal-cost HEN is a challenging research topic in recently ...
Mesoporous MCM-41, MCM-48, SBA-15, and pyrolysis char as catalysts for catalytic pyrolysis of waste tire

Supattra Seng-eiad (Chulalongkorn University, 2015)

Due to the fact that aromatic compounds and hetero-atoms such as nitrogen are present, tire-derived oil (TDO) is not suitable for direct uses in a vehicle engine. Additionally, char remaining from pyrolysis is highly ...
Measurement of minimum miscibility pressure of CO2 in Thai crude oil: effect of gas impurity

Supanut Jirarattanawanna (Chulalongkorn University, 2015)

A pressure decay technique was used to measure minimum miscibility pressure (MMP) of CO2-Thai crude system. Effects of temperature, oil molecular weight, and gas impurity in CO2 on MMP were determined by for condensate ...
Surfactant adsorption on solid surfaces in relation to wettability

Thritima Sritapunya (Chulalongkorn University, 2012)

The main propose of the first part of this research was to investigate the relation of surfactant adsorption and wettability on various hydrophobic surfaces. Surface tension was measured as a function of surfactant ...

Now showing items 101-120 of 1415

Search DSpace

Advanced Search

Browse

All of DSpace
This Collection

Recently added

Petro - Theses: Recent submissions

Search DSpace

Browse

All of DSpace

This Collection

My Account