Uthaiporn Suriyapraphadilok

Chulalongkorn University · Petroleum and Petrochemical College

Surfactant selection and formulation are key factors in technological and economic success in chemically enhanced oil recovery (cEOR) applications. In this study, the silica nanoparticle (SNP) was added in an ultralow interfacial tension foam (ULIFT), called SNP-ULIFT foam, which was successfully prepared by ternary surfactant systems. The Carboxyl...

In this study, Deca-Dodecasil-3-Rhombohedral or DDR-type zeolite membranes were prepared on alumina disc as a membrane support. This membrane has several advantages such as good chemical stability, thermal-durability, and hydrophobic properties, which is suitable in tough gas separating condition with a high pressure and moisture content. DDR seeds...

Alkyl-carboxylate extended surfactants as foaming agents have been formulated to generate stable nanoparticle-surfactant foam systems. Because of their unique characteristics, these extended surfactant contains a carboxylate head group and together with ethylene oxide groups inserted between the alkyl tail and carboxylate head group. They tend to o...

The use of nanoparticles has been intensively investigated to improve foam flooding in oil production. Because nanoparticles have larger adhesion energy at the air-water interface than the surfactant, they help to prevent a gas diffusion between bubbles that leads to foam film rupture. In this study, the detail investigation on the behavior of mixe...

A primary concern of surfactant‐assisted foams in enhanced oil recovery (EOR) is the stability of the foams. In recent studies, foam stability has been successfully improved by the use of nanoparticles (NP). The adhesion energy of the NP is larger than the adsorbed surfactant molecules at the air–water interface, leading to a steric barrier to miti...

Krafft point is one of the key properties of anionic surfactants to indicate their solubility in an aqueous phase. Below the Krafft point, the surfactant is a useless solid. We have developed a prediction model for the Krafft point based on the Marrero and Gani Group Contribution (GC) concept. Literature data were analyzed and a new third‐order lev...

This study aims to generate an alternative design for an ethylene glycol production process focusing on a reduction of operating cost and emissions. To achieve this, the phenomena-based method for process intensification was applied. 3 stages of process intensification were performed. First, the base-case design was obtained, resulting in the produ...

We solve globally an extension of the isothermal mixing stages model (Synheat) proposed by Yee and Grossmann (1990), later extended to non-isothermal mixing by Björk and Weterlund (2002) and solved globally by Faria et al. (2015). This new extension of that model was recently presented in a Conference Proceedings (Jongsuwat et al., 2014). The model...

Process intensification can be applied to achieve sustainable process design. In this paper, a systematic, 3-stage synthesis-intensification framework is applied to achieve more sustainable design. In stage 1, the synthesis stage, an objective function and design constraints are defined and a base case is synthesized. In stage 2, the design and ana...

The product design framework for systematic screening & selection of surfactants consists of four main steps: problem definition, target properties specification, data collection & model development, and screening-selection. The Hydrophilic-Lipophilic Deviation (HLD) value has been identified as the main target property because it is related to the...

The objective of this work is to generate more sustainable intensified process designs for the production of important chemicals in the petrochemical sector. A 3-stage approach is applied. In stage 1, the base case design is generated or selected from literature. In stage 2, the base case design is analysed in terms of economics, sustainability and...

To obtain more profit and viability of the biodiesel plant, it is necessary to utilize and add value to the low cost by-product crude glycerol. This work is focused on a production of 1,2-propanediol from crude glycerol by using Aspen Plus® and an economic analysis by using Icarus Aspen Plus®. Crude glycerol contains high impurities such as salts,...

We present the performance of recently developed techniques on domain and image partitioning (part of the global optimizer, RYSIA) to obtain a good lower bound for the gasoline blending problem. We show that without good initial values, this model cannot be solved using local solvers and we show the need for bound contraction.

Minimizing CO2 emission, while achieving economic feasibility in CO2 utilization for producing valuable chemicals is a challenging problem, as reported in recent studies. Due to its high Cetane number, clean-burning, and non-toxic, DME is a promising fuel alternative, and therefore, potentially valuable chemical that can be produced via thermochemi...

Porous carbon nanospheres (CNSs) synthesized by a plasma-in-liquid technique were applied as an adsorbent for CO2 adsorption. Two different types of aromatic solvents, benzene and pyridine, were used as precursors to generate CNSs. The prepared CNSs were carbonized and then activated with CO2 to obtain carbon materials with a suitable porous struct...

A systematic methodology for screening and designing of Ionic Liquid (IL)-based separation processes is proposed and demonstrated using several case studies of both aqueous and non-aqueous systems, for instance, ethanol. +. water, ethanol. +. hexane, benzene. +. hexane, and toluene. +. methylcyclohexane. The best four ILs of each mixture are [mmim]...

Minimizing CO2 emission in the atmosphere to prevent the climate change has required more efforts to capture and utilize CO2. One viable solution is to recover and store CO2 underground through capture processes. However, the cost to capture CO2 is still quite high and is a major problem in advancing more sustainable routes. Using captured CO2 as a...

The advent of complex industrial water/wastewater management problems points to a need for effective systematic design for a sustainable solution. The objective of this work is to extend the research in the area of systematic design of water/wastewater management by further developing and extending a generic model-based synthesis and design framewo...

A systematic methodology for the screening of ionic liquids (ILs) as entrainers and for the design of ILs-based separation processes in various homogeneous binary azeotropic mixtures has been developed. The methodology focuses on the homogeneous binary aqueous azeotropic systems (for example, water + alcohols). Additionally, a Hildebrand solubility...

Utilization of CO2 feedstock through CO2 conversion for producing valuable chemicals as an alternative to sequestration of the captured CO2 is attracting increasing attention in recent studies. Indeed, the methanol production process via thermochemical CO2 conversion reactions is considered a prime candidate for commercialization. The aim of this s...

More efforts to capture CO2 are being encouraged in order to minimize its concentration in air. However, the cost to capture CO2 is still quite high and is a major problem in advancing more sustainable processes. One viable solution is using captured CO2 as a raw material to convert to valuable products so that CO2 capture and utilization can becom...

A methodology for the screening of ionic liquids (ILs) as entrainers for ILs-based separation processes in binary aqueous azeotropic systems (e.g., water + ethanol and water + isopropanol) is presented. Ionic liquids as entrainers were first screened based on a combination of criteria such as stability, toxicity, and environmental impacts of the IL...

A new heat exchanger network model is presented consisting of an extension of the stage-wise superstructure approach that was proposed by Yee et al. (1990). Motivated by systems where splitting of large FCP stream is needed to match with several smaller FCP streams (like crude fractionation units), we add several matches per branch (Figure 1). Give...

The increasing awareness of the sustainability of water resources has become an important issue. Many process industries contribute to high water consumption and wastewater generation. Problems in industrial water management include the processing of complex contaminants in wastewater, selection of wastewater treatment technologies, as well as wate...

Carbon anodes are manufactured from calcined petroleum coke (i.e. sponge coke) and recycled anode butts as fillers, and coal tar pitch (SCTP) as the binder. During the manufacturing of carbon anodes, coal tar pitch is mixed with calcined petroleum coke. The mix of binder, filler and some additives is heated to about 50°C above the softening point o...

The detailed analysis of the property of pitch generated by the coal and heavy petroleum residua co-coking processes, were discussed. The direct-insertion mass spectrometry (CI-MS) and gas chromatography/mass spectrometry (GC/MS) showed that the resultant compounds were rich in 4-6 aromatic rings in the co-coking pitch. Laser ring systems are being...

Three industrial anode butts, with and without recycled butt material, were investigated in this study. Non-destructive x-ray tomography (x-ray CT) was used to enumerate the spatial distribution of density and porosity in the sample. Apparent and absolute densities, and air/CO2 reactivities were measured as a function of the distance from the airbu...

Three industrial anode butts, with and without recycled butt material, were studied. Non-destructive X-Ray Tomography (X-Ray CT) was used to quantity the spatial distribution of density and porosity in the sample. Apparent and absolute densities were measured and the specific pore volumes were calculated as a function of the distance from the airbu...

A new experimental technique has been developed to measure the solubility of gases and vapors in polymers and other sorbents at elevated pressures. The technique involves measuring the total weight of a vessel containing the sorbent material pressurized with a vapor, assessing the amount of vapor in the headspace of the vessel with an appropriate e...

Introduction Carbon anodes are manufactured from calcined petroleum coke, butt fillers and coal tar pitch 1 . Since the demand of the coal tar pitch in the aluminum industry accounts for about 75% of the pitch market and the production of coal tars is rapidly decreasing in the United States as well as throughout the world, the development of altern...