Wax deposition in diesel transportation pipe at low temperatures is one of the harassing problems faced by the diesel transportation companies. In winter, the temperature is very low and the demand of diesel is increasing greatly in northern region…
The development of concentrated and highly stable oil-in-water (O/W) emulsion is considered to be a cost-effective alternative for the transportation of produced heavy crude oils. However, the demulsification of a transported O/W emulsion is…
The heterogeneous structure of biomass causes the complex compositions of bio-oil, thereby posing huge challenges for the extraction of value-added chemicals from bio-oil and the catalytic upgrading of bio-oil in existing petroleum-refining…
Coffee is one of the most popular beverages in the world. Over 50% of this mass is discarded after use, becoming a significant waste source known as spent coffee grounds (SCG). SCG usage as a raw material for biogas production emerges with great…
The cold flow properties of waste oil biodiesel (WME) were studied by gas chromatography-mass spectrometry (GC-MS), multifunctional low temperature tester, differential scanning calorimetry (DSC) and solution crystallization theory. Three approaches…
The authors have been proposing methods to dewater, and fractionate coal by using the sequential thermal solvent extraction. They have recently showed that the degradative extraction at around 350°C using a non-polar solvent such as…
Since 2017, the level of greenhouse gases in the atmosphere has been steadily growing, despite the constant increase in the share of renewable energy sources (RES) in the total amount of electricity consumed. The reason for this growth is not in the…
Carbon dioxide (CO2) is perhaps the most important greenhouse gas and it has been directly implicated in global warming. Fossil fuel-based power plants are one of the most important sources of CO2 and their sustainable operation requires mitigation…
Aiming at the optimization of an integrated energy system in a certain area, an efficient utilization system of flue gas waste heat in a combined cycle unit of coupled flue gas waste heat system, natural gas heating system, chemical water heating…
In order to study the superposition effect of physical explosion and chemical explosion shock wave of liquefied natural gas storage tank and obtain the distribution law of load and overpressure, this paper uses ANSYS/LSDYNA to establish the finite…
Simulation of the transport of ions and neutral particles is important for studies of the flow field and working characteristics of jet flow plasma devices. The spatiotemporal evolution of plasma plumes in the small space within such devices is…
Deposition of complex and heavy organic compounds, which exist in petroleum crude and heavy oil, can cause a number of severe problems. In present study wax deposition was studied at 80°C using cold finger device. Three crude oil samples were tested…
Kurdistan region of Iraq with more than 45 billion barrels of reserved oil and 200 trillion cubic feet of reserved natural gas is considered as one of the richest area with oil and gas in the world. After 2003 specially after the approval of the…
Chemicals have been produced from natural gas and crude oil for almost 100 years and are commonly referred to as petrochemicals. In the strictest sense, chemicals are produced as individual chemicals and are used as the basic building blocks for the…
Crude oil dehydrogenation catalytic pyrolysis (DCP) was carried out by fundamental studies and pilot verification. Ca/ZSM-5 catalysts were used to maximize production of light olefins and aromatics. At temperature of 600 °C, fundamental studies…
A wide assortment of chemicals can be produced from biomass and many of these chemicals can be used to produce a wide variety of gaseous, liquid, and solid materials and are often referred to as platform chemicals and there are two such platforms by…
Chemicals have been produced from natural gas and crude oil for almost 100 years and are commonly referred to as petrochemicals. In the strictest sense, chemicals are produced as individual chemicals and are used as the basic building blocks for the…
Crude oil dehydrogenation catalytic pyrolysis (DCP) was carried out by fundamental studies and pilot verification. Ca/ZSM-5 catalysts were used to maximize production of light olefins and aromatics. At temperature of 600 °C, fundamental studies…
Due to the continuous development of the chemical industry as well as the ever-increasing demand for raw materials, trend of maritime transport of chemicals and hazardous substances has significantly increased in recent decades. This growth results…
This paper presents an overview of bonded flexible pipe improvements primarily driven by environmental safety as applied to offshore development using mobile production systems. Bonded pipe is a flexible pipe where the steel reinforcement is…
The easy detection of fouling in duct systems is a persistent problem and remains a relevant demand for the chemical, oil, food, and pharmaceutical industries. The fouling process is the slow unwanted layer deposition of heavy organic and other…
In-site permeability test was carried out in order to find the permeability coefficient in the ground of the 7 companies (Research Institute of Petroleum Industry, Oil Exploration Operations Company, Commercial Storage, Iranol Company, Distribution…
Fouling detection is a relevant problem for chemical, oil, food and pharmaceutical industries. Fouling consists of the deposition of heavy organic materials and other dissolved solids or in suspension in fluid transport system. The ultrasonic guided…
Statistical learning theory is introduced to defect detection and a detection system of oil tube defect based upon support vector machine (SVM) is presented, it got the original information by multigroup vortex sensors and leakage magnetic sensors.…
Deposition of complex and heavy organic compounds, which exist in petroleum crude and heavy oil, can cause a number of severe problems. In present study wax deposition was studied at 80°C using cold finger device. Three crude oil samples were tested…
Guided ultrasonic wave is a new non-destructive pipe inspection technology for its rapid, long distance inspection. It can be used to inspect urban pipes, for example, residential drinking water pipe, natural gas pipe, heating pipe, sewage pipe. Most…
This paper includes a discussion of design considerations, test, and application of a large stiff-shaft two-pole motor designed for fixed or adjustable-frequency drive (AFD) of pumps for a pipeline retrofit. A rotor-dynamics analysis of the rotor…
Fouling detection is a persistent and relevant problem for the chemical, oil, food and pharmaceutical industries. The fouling process is the slow, unwanted layer deposition of heavy organic and other dissolved solid material out of transported fluids…
The characteristics of the various applications pipeline companies have made using adjustable-speed drives for starting and running large electric motors, driving pumps, and compressors on pipelines and ancillary systems are reviewed. Included is a…
The importance of industrial activities in Sfax (Tunisia) lies not only in the local economy boost, but also in the impact on the urban and natural environments. In fact, Sfax is characterized by two major industrial sectors: Phosphate and petroleum…
The easy detection of fouling in duct systems is a persistent problem and remains a relevant demand for the chemical, oil, food and pharmaceutical industries. This work presents preliminary research results of vibrational hammer excitation for easy…
Deepwater fields are characterized by extreme low temperature and high pressure, houses huge potential amount of hydrated gas. However, deepwater is associated with scenarios such as, costly structures, scattered wells, and exploration at even…
Leak detection in oil pipelines is important for safe operation of pipelines. Negative Pressure Wave (NPW) in pressure curve can be an indication of leakage of a pipeline. In this paper, we propose to use the support vector machine (SVM) learning to…
AEC Pipelines has expanded the capacity of its bitumen blend Cold Lake pipeline from 130000 barrels/day (bpd) to 185000 bpd by the installation of a new midpoint booster pump station utilizing a 3500 HP adjustable speed drive. The unit is a variable…
Adjustable speed drives are widely used in the petroleum, chemical and pipeline industries for energy savings and process control optimization. Their output powers range from fractions of kilowatts through tens of megawatts, with motor speeds up to…
Oil field development process can certainly produce oily sludge. With the acceleration of the progress of field development and the improvement of environmental protection requirements, how to deal with oily sludge has become a problem that urgent to…
Natural gas transmission lines transport large quantities of natural gas across long distances. The analysis of these pipelines is very complex and the day-to-day operations leave little time for optimization. This paper details techniques that can…
The formation of hydrates in the subsea production of oil and gas is a well-known problem. As the unprocessed well stream cools down, hydrates start to form around 25 degC, depending on the water cut and pressure in the pipeline. Several solutions…
Pipelines are the most common way to transport oil and gas products. Any defect which affects integrity of the pipeline can lead to service disruptions and increases the risk of damage to the environment. Considerable efforts have been made in order…
Oil-water two-phase flow is commonly encountered in industrial processes of petroleum and chemical engineering. The process parameters, such as velocity and phase concentration of the mixture are of great importance in both scientific and engineering…
Studies conducted by Petrobras (the Brazilian national oil company) in Western Amazonia indicate a high demand for petroleum in the region. This fact encouraged Petrobras to build a pipeline that transports 60 thousand barrels of oil per day from the…
Fouling detection is a relevant problem for chemical, oil, food and pharmaceutical industries. Fouling consists of the deposition of heavy organic materials and other dissolved solids or in suspension in fluid transport system. The ultrasonic guided…
This paper is intended as a guide on the relative effects of loading, service factor and temperature on the expected insulation life of electric motors. Most refinery, pipeline and chemical plant operators are not motor or insulation designers
A novel sensor-based approach for leak detection of oil pipeline is proposed. The approach uses piezoelectric sensor in dynamic pressure transducer. The key to the detection algorithm is the use of the characteristic of piezoelectric sensor: when…
Formation of hydrates is a well known problem in subsea production systems for oil and gas. As the unprocessed well-stream cools down, hydrates are formed at temperatures up to 25 /spl deg/C depending on the water cut and pressure inside the…
The finite difference method is adopted to compute the axial velocity of coal water slurry (CWS) pipeline transport axial flow field flowing in the laminar flow, which could be described by Poisson partial differential equation. In this work, the…
It is important for the extension project redesign of the petrochemical enterprise to reconstruct the 3D-modeling of the petrochemical devices. We use the 3D-scanning technology to realizing the reconstruction of petrochemical enterprise pipeline.…