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Gases like hydrogen and gas mixtures like biogas are an important renewable energy resource. For storing, the gas is compressed and transferred to pressure vessels A sustainable and effective alternative is the adsorption of the gas by porous media. Adsorbed gas storage is of particular relevance for...

This study focused on the co-pyrolysis of sewage sludge and rice straw in order to improve syngas yield and energy recovery potential. The singular pyrolysis of sewage sludge and rice straw was firstly investigated under varying operating temperatures. Then the synergetic effect on yield of combustible...

Lost circulation leads to severe downhole accidents in some cases, and is common in oil or gas drilling. Lost circulation has become a serious threat to energy security and environmental protection and has thus attracted widespread attention. Recently, several studies introduce machine learning algorithms...

Employers hire people with the technical or work-specific skills required to do the job. But they’re also looking for an additional set of skills that they often consider just as important—employability skills. This study was conducted to examine the employer’s needs about the employability skills of...

The problem of ensuring the stability of a multivariable automatic control system which consists of statically and dynamically unstable objects must be managed when solving applied problems. In theoretical terms, this problem is worked out poorly and there are no practical recommendations for its solution....

With the development of economy, are the main sources of air pollution of sulfur dioxide, seriously affecting the quality of life of the people. Improve the desulphurization is an important part of today's enterprise production. The desulfurization system is complex, high to the requirement of control...

Genetic algorithms (GAs) are stochastic optimization techniques, and we have studied the effects of stochastic fluctuation in the process of GA evolution. A mathematical study was carried out for GA on OneMax function within the framework of Markov chain model. We obtained the steady state solution,...

Taking CO2 absorption as background, this paper makes a research on the experiments of CO2 absorption of the NaOH solution within microchannel reactor. By changing the concentration, superficial gas velocity and superficial liquid velocity of NaOH solution, their impact on the CO2 absorption rate is...

Based on analysis of hydrocarbon resource potential, geological structure aspects and results of geological survey in the North-Caucasus oil-bearing province, first-priority directions and targets of geological exploration works are suggested in order to accelerate the preparation of discovered hydrocarbon...

The pneumatic part of the lamination machine is presented in the paper. The type of cylinder is introduced. The parameters of pneumatic device are designed. The parameter design of the pneumatic device of the box cover, the design of the parameters of the lifting pneumatic device for the cylinder, and...

In the Northern Trans-Ural region ticks are dangerous to animals as carriers and reservoirs of viruses and parasitic diseases. New compositions with prominent acaricidal qualities, the majority of which belong to the group of synthetic pyrethroids, are being constantly created against ticks. In the search...

This work is to determine the leading position of liquefied natural gas by comparative analysis with renewable energy sources as competing energy industries with a development perspective until 2035. Hypothesizing an unknown energy source capable of replacing traditional energy.

The aim of this paper is to research variation of phenolic yields in bio-oil and the effect of interactions of three components in biomass, fast pyrolysis experiments were done with cellulose, xylan (as an alternative to hemicellulose) and lignin in tube furnace at different temperatures. Phenolic yields...

Equipment used at the enterprises implementing oil and gas technologies is potentially hazardous and should be of high degree of reliability. Reliability of equipment reduces the number of defects appearing during the operation process. One of hazardous and unpredictable defects is fracture. If there...

With the rapid development of oil & gas pipeline construction, the pollution accidents are increasing in quantity. The safe operation of pipelines has aroused widespread concern. This study collected the historical cases of environmental accidents in the domestic oil & gas pipelines in recent 10 years....

Global uncertainty has an impact on various aspects, one of which is the economy. Global uncertainties caused by various factors also affect international trade, especially exports. The purpose of this research is to see how the impact of macroeconomic shocks and global uncertainty on non-oil and gas...

Gas turbine thermal efficiency degradation presents significant operational challenges, with uncertainty persisting regarding the relative contributions of underlying machine health versus compressor washing maintenance to performance recovery. This study specifically aimed to identify the dominant factor...

The main problem in the use of speedboat river vessels is the carbon monoxide (CO) exhaust emissions produced by the speedboat river vessels. This can have an impact on air pollution or pollution on speedboat river vessel passengers. So that passengers can get Acute Respiratory Tract Infection (ARI)....

Based on the theory of EKC curve, industrial waste water, industrial waste gas emissions (take SO2 as a representative) and industrial solid waste are selected as the environmental indicators. GDP per capita is used as economic indicators. According to the Huaihe River in five provinces in 2004-2014...

The exploration and geology research level is lower at East Tarim basin and the studying of carbonate reservoir at deeper basin is also inadequate in special. Dolomite of Cambrian is the prospect area, there has good condition to form high quality stratum which will be got breakthrough on exploration...

Regional development opportunities are primarily determined by their level and structure of the resource potential. The most important indicators of the regional economy state are: availability of natural resources, the structure of the able-bodied population, the level of its education, the state of...

The pore structure of shale gas reservoir is of important research significance to the development and exploitation of shale gas and domestic scholars have done massive researches on the pore structure of shale. To better study the porosity features of shale gas reservoir, the common porosity determination...

National Aeronautics and Space Administration (NASA) launched the new satellite mission called Landsat-8 on February 11, 2013. NASA improved Landsat-8 with Onboard Operational Land Imager (OLI) and Thermal Infrared Sensor (TIRS) sensors separated to 11 spectral bands. Volcanic eruption spreads a lot...

171 employees exposed to industrial anthropogenic chemical factors were examined. The sample was divided according to the principle of the presence of the cardiovascular diseases (CVD) (study group – 115 people) and their absence (comparison group – 56 people). For all employees, a chemical-analytical...

Green finance in Indonesia presents significant opportunities as the country strives towards a sustainable future. Indonesia has committed to ambitious climate objectives, including a reduction of annual greenhouse gas emissions by 31.89% domestically and 43.20% with international assistance by 2030,...

The purpose of this study is to determine and explain the stability of the value of foreign exchange reserves affected by macroeconomic variables, such as net exports, foreign investment, and foreign debt. The research method used is explanatory research with a quantitative approach. The data used in...

CO2 emissions are a global issue that many countries face. In handling this issue, one of them is by utilizing energy resources to cover CO2 emissions. However, among the many methods used to absorb CO2, one of the most effective is a process by injecting CO2 into the earth layer that also known as carbon...

ZnO sorbents with different CeO2 loadings were prepared by microwave calcination and tested the performance for H2S removal in a fixed-bed reactor at 500 . The results revealed that the Ce-doped sorbents have a higher efficiency and longer breakthrough time compared with non-modified sorbents. The optimal...

Hydrogen sulphide (H2S) is always present in biogas, and causes odours, corrosiveness, and sulphur emissions when the gas is burned. It is used regularly in internal combustion engines, turbines or fuel cells, the removal of hydrogen sulphide from biogas is required to protect the equipment. More importantly,...

Carbon capture, utilization, and storage (CCUS) is an important technology for reducing carbon emissions in the thermal power industry. However, there is currently no accounting method for the full lifecycle carbon emissions of CCUS projects. This article presents the full lifecycle carbon footprint...

The article considers development of the technology of recovering disturbed soils intended for nature protection purposes on the territory of Bovanenkovskiy oil, gas and condensate field of Yamal peninsula. In the course of operation, blend composition and consumption rates of seed material were selected,...

Drilling is a very dominant operation in all rock cutting industries, namely, mining, petroleum, natural gas and civil engineering. The objective of this study is to understand the behaviour of rock drillability by mean of penetration rate of bit, with concentration of 10 ppm of carboxymethyl cellulose,...

Analyzing the nanopore structure of organic matter-rich shale is the basis for evaluating shale reservoir properties and the potential for shale gas resource exploration and development. In this paper, we evaluate the pore characteristics and connectivity of the shale of the Lower Paleozoic Ordovician...

This paper introduces how to achieve a Jess-based intelligent diagnosis system of local ventilation in the mine field, analyzes how to add rules engine Jess into the development of intelligent diagnosis system, at the same time, it leads the theory of statistics into the inference engine to achieve the...

This work described a system of high-speed data acquisition and real-time signal processing based on Tunable Diode Laser Spectroscopy (TDLS). We used wavelength modulation spectroscopy technique to improve the de-noising performance of the system and reduce the acquisition stress of the system. We specially...

The environment is naturally polluted with reversible effects through biological and biochemical cycles. Artificial pollution from industry activities disrupts natural cycles with irreversible consequences. Internal combustion engines are among the most polluting machines manufactured by humans. Worldwide...

The problem of optimization gas or oil pipelines arrangement can be converted into Fermat problem of “Two points and One Line”. The optimal arrangement of pipelines with the same unit cost of shared or non - shared pipeline (OAPSU-Model) is proposed to study the problems of lowest cost of pipelines firstly....

Biochemical tail water of Printing and Dyeing industry is a typical low load and refractory wastewater. Its COD concentration is between 150-200 mg/L. In this pilot study, the effect of lignite-coke and ceramic filter in BAF treatment of dyeing and biochemical tail water was investigated. By comparison...

The matching technique of model-plant performance data can be used to solve several problems, such as fault diagnosis, the model calibration and deterioration estimation etc. In present paper, model-plant performance matching from the limited number of measured quantities is proposed. A gas power generator...

Some specific bamboo pellets were combusted in a tube furnace individually in different constant air flow rates (3,4 and 5 L/min) and at various temperatures (800, 900, 1000, 1100 and 1200 ), in order to investigate the dynamic emission characteristics during various respective combustion processes....

this article introduces a variation of the parameter method for solving homogeneous linear ordinary differential equations of the second order with constant coefficients, which are most often encountered in the oil and gas engineering when studying the drilling, production and pipeline transport of oil...

The coupled problem between gas flow and solid deformation in porous media analysis has important influence in contaminant transport and gas outbursts during coal mining. In this paper, it is presented an analytical method to solve coupled nonlinear models of stress and gas seepage, which consider the...

Transformer is the main equipment, whose stable and reliable operation play an important role in the state grid. The process and method of finding overheating faults are illustrated through the case of a 66kV transformer internal fault. At the same time, it is verified that the gas chromatographic analysis...

Study the effects of diesel engine emission characteristics with different adding proportions of ethanol on a DI diesel engine. The results show that with the increasing of ethanol blending proportions, the diesel exhaust gas decreases with the addition of ethanol, the emission of NOX also reduces significantly,...

Laval nozzles for important component in high-speed precision air-floating spindle gas drive systems, to establish a cross-sectional ratio is calculated by analysis of their simplified model of the two stages. Use of computational fluid dynamics (CFD) to simulate the Structural parameters of Laval nozzle--...

Based on core observation and thin section authentication, the control factors of Oxfordian Stage carbonate reservoir of Odjarly Gas field of Amu Darya Basin were discussed by comprehensive utilization of geological, drilling, seismic data etc. It was concluded that the carbonate reservoir developed...

Thermoelectric material can convert waste heat from the combustion gas into electrical energy. The objective of this work was to study the effect of fan power on the electrical output of a thermoelectric generator used in the combustion of wood charcoal. The side wall of the combustion stove has thermoelectric...

The choice of gas mediums will affect the reflected shock pressure and temperature during analyzing the shock tube. Different mediums in driver and driven section result in the Mach number disparity in the process of shock wave propagating, adversely affecting the reflected shock wave. Based on the ideal...

To achieve the green backfill of an abandoned open pit mine with a large difference chute process system, Fushun West open pit mine is used as the research subject. Based on the theory of gas-solid two-phase flow and the characteristics of large difference chutes, FLUENT numerical simulation software...

The presence of nitrogenous substances in wastewater discharges has attracted attention because of the role of nitrogen in eutrophication of receiving waters. Nitrogen removal is an important aspect of present day wastewater treatment processes. However, conventional nitrification–denitrification treatment...