Table of Content :

Abstract The application of glycerol by-product of palm oil biodiesel industry in drilling fluid was carried out in this work. Glycerol will be utilized as a new alternative base fluid for Synthetic-Based Mud (SBM) and lubricant for Water-Based Mud (WBM). Due to the poor quality of crude glycerol from palm […]

Innovation of Purified Glycerol Palm Oil in Drilling Fluid System

Abstract The development of an OBM from glycerol was carried out in this work. Glycerol used in this study, which is by-product of palm oil biodiesel industry, is a new alternative for OBM. In this study, crude glycerol will be purified using H3PO4 solution to increase the purity of glycerol […]

Application of Glycerol by-product of Biodiesel Palm Oil As Potential ...

Abstract   Andrographolide of Andrographis paniculata is reported has a broad category of pharmacological activity. Various attemps have been done in order to improve the andrographolide extraction performance. Hydrotropic-microwave assisted extraction provides an effective method in andrographolide extraction. In this study, Response Surface Methodology (RSM) along with central composite design […]

The Application of Response Surface Methodology in Hydrotropic Microwave Assisted ...

Abstract The industrial scale equipment design of P. cubeba essential oil extraction by microwave assisted hydrodistillation (MAHD), as a relatively new extraction method, requires quantitative description of the mass transfer as well as explorative studies focusing on process optimization. The quantitative modeling was generated by several mathematical diffusion formulas and […]

Extraction of P. Cubeba Essential Oil by Microwave Assisted Hydrodistillation: ...

Abstract As the technology advances, the natural dye substance now replaced by the synthetic dyeing substance. The using of natural dyeing substance, however still maintained especially in the process of making batik. Batik fabric which made by natural dye substance is more expensive due to its highly artistic value, non […]

The Optimization of Synthetic Indigo Dye Using Phosphate Acid Catalyst

Abstract Trichloroacetic acid (TCA) was used as catalyst for the hydration of α-pinene from turpentin oil using water as hydroxyl donor. The reaction was performed in batch reactor at 70oC, using aquous aceton as solvent. The TCA catalyst converted α-pinene into hydrocar­bons, while the TCA catalyst was active and selective […]

Turpentine Oil Hydration Using Trichloroacetic Acid As Catalyst

Abstract Chain length distribution is an important factor affecting the polymer product properties. A Monte Carlo method was applied to predict the chain length distribution in the step growth polymerization product under isothermal condition. The results for small time of polymerization were compared to the results of kinetics modeling. It […]

Predicting Chain Length Distribution in Step Growth Polymerization by Monte ...

Abstract Prediction and analysis of wellbore stability is considered as a critical and significant issue in drilling engineering. Loss of well due to instability prompts high expenditure and ceases drilling operation. Effective parameters on wellbore stability are in situ stress, pore pressure, rock strength, drilling mud pressure, and well path. […]

Analysis of Vertical, Horizontal and Deviated Wellbores Stability

Abstract                              Mineral beneficiation processing such as coal, gold, copper, iron, and a host of other ores are aqueous separation processes which usually require huge volumes of water that are continually recycled. Scale formation in process lines […]

Energy Conservation in Fluid Process Plants by Hydraulic Optimization

Abstract Transesterification of Jatropha curcas for biodiesel production is a kinetic control process, which is complex in nature and controlled by temperature, molar ratio, mixing intensity and catalyst process parameters. A precise choice of catalyst is required to improve the rate of transesterification and to simulate the kinetic study in […]

Adaptive Neuro Fuzzy Inference System Modeling for Biodiesel Kinetics Study

Abstract With emergence of production processes of Sodium Hydroxide with mercury and diaphragmatic Electrolysis methods and identifying harmful effects of using mercury and Asbestos and also environmental and economic problems, these processes are turned to one of difficulties and concerns of Petrochemical Industry and countries intend to eliminate these processes […]

Investigation of Producing Chlorine with Electro Dialysis Method and the ...

Abstract A possible eco-friendly method of remediation technology in contaminated environments is the use of biosurfactants that are produced by local microorganisms. This study was carried out to obtain the best concentration of biosurfactant for oil extraction from oil sludge. It was optimized by a Taguchi orthogonal array design of L16 (45) with […]

Optimization of Biosurfactant for Oil Extraction from Oil Sludge

Abstract In this study, effective parameters on pseudomonas bacterial culturing are analyzed individually. Pseudomonas bacteria were applied for oil pollutants segregation from a polluted water sample of Persian Gulf. The bacteria were used for cleaning the sample so that the contents’ chemical features could be determined.Salinity and pH parameters were […]

Effect of Pseudomonas Bacteria Biosurfactants on Persian Gulf Crude Oil ...

Abstract This project was aimed to use three concentrations (1,2 and 3%) of neem seed extracts adding to 4% Paraphenylenediamine (PPD), the previously recommended dose (Saudi, 2012) in order to improve PPD against three rodent species: white billed rat,  Rattus rattus frugivorus, nile grass rat,  Arvicanthis niloticus and  house mice, Mus musculus under  laboratory conditions. The results showed […]

Additions Used to Increase the Toxicity of Paraphenylenediamine (PPD) Against ...

Abstract The solids are widely used in the refining industry. They are involved in most processes of heterogeneous catalysis that has greatly revolutionized the refining processes during the half past century. It has contributed to the rapid development of processes such as: catalytic cracking, catalytic reforming and isomerization. As we […]

Valorisation of Petroleum Load Via Thermal Process

Abstract Land subsidence due to slow compaction sediments is one of the most dangerous phenomena in nature. Human activities such as removal of hydrocarbons are among important environmental issues. While traditional mapping can determine the rate of subsidence factors in depression, modern techniques are used to reduce costs and increase […]

Evaluation of Surface Subsidence in One of Iran’s Oil Fields ...

Abstract Chemical extraction of olive oil from natural and dried olive cake (obtained from Alyarmouk press, Irbid, Jordan) using organic solvents like hexane, ethanol, petroleum ether, isopropyl alcohol and carbon tetrachloride was carried out in a Soxhlet extractor. Olive cake samples were dried in an oven at 70°C and 105°C […]

Extraction of Olive Oil from Olive Cake Using Soxhlet Apparatus

Abstract The Arrhenius parameters and the reaction model of catalytically cracking of high-density polyethylene (HDPE) have been estimated from isothermal kinetic results. We introduced a new catalyst that is able to convert waste plastics to fuel oil and introduced new method to record mass decrease with time under pure static […]

Using Isothermal Kinetic Results to Estimate the Kinetic Triplet of ...

Abstract This paper focuses on efficiency of the treatment of the soil infected by hydrocarbons, via the method of Landfarming, with bio-restoration and bio-augmentation. Physical, chemical and microbiological characteristics of this soil where done with appropriates methods. The study of the treatment soil evaluated by different levels: bacterial development, variation […]

The Microbiologic Physico Chemical Characteristic of Polluted Soil by the ...

  Abstract Microorganisms’ arrangements include lots of surface-active compounds, which are generally called biosurfactants. Biosurfactants are microbiologic compounds with active surfaces. Variety in biosurfactants production comprises a vast realm of industrial applications, one of which is their effective role in oil enhanced recovery in the same time as increasing crude […]

Optimization of Biosurfactant Production and Their Application in Oily Polluted ...

  Abstract Huge storage tanks containing crude oil and petrochemicals have always been a great threat to refineries and petrochemical companies. Due to their big capacities and possibility of fire occurrence, they were widely studied by scientists in the world. Boilover phenomenon that indicates fire initiation in water bed and […]

Boilover in Storage Tanks: Occurrence, Consequences and Predictions

  Abstract Nowadays, hydroprocessing is one of the most significant methods in refining petroleum and plays a pivotal role in petroleum industry. Hydrocracking is used to remove feed contaminants (nitrogen, sulfur, metals) and to convert low value gas oils to valuable products. However, being so expensive, the method was disregarded […]

Advent of Nanocatalysts in Hydrotreating Process: Benefits and Developments

  Abstract The flow characteristics of some commonly used polymers in the enhanced oil recovery were investigated. Two different types of polymer were selected, Alcoflood and Xanthan gum. Rheostress RS100 was used for measuring and analyzing the experimental measurements. A cone and plate of RS100 rheometer under control shear rate […]

Flow Behavior Comparison of Xanthan and Alcoflood Polymers Aqueous Solutions