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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,...

The growth of construction activities in Indonesia has led to a continuous rise in Construction and Demolition Waste (CDW) generation. To address this challenge, this study proposes an initial conceptual model using a System Dynamics (SD) approach to explore key drivers and feedback structures in CDW...

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...

Wire Arc Additive Manufacturing is a Direct Energy Deposition process that uses an electric arc as the heat source to melt metal wire layer by layer. WAAM-based additive manufacturing presents one of its main challenges: material deformation caused by thermal effects during the welding process. In this...

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...

This study critically explores the potential of lime sludge, a predominant byproduct from the pulp and paper industry, as a sustainable constituent in building materials. The literature reveals that thermally treated lime sludge demonstrates significant pozzolanic reactivity, making it a promising candidate...

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...

Spent coffee grounds contained 45% carbohydrate, 26% lignin, 13% lipid, and 13% protein. To improve the value of spent coffee grounds in a sustainable way, a study was done on how to convert carbohydrates into fermentable sugars which could be used to make value-added products. To accomplish this, a...

The paper construct the factor decomposition model based on SDA, with the idea of jointly created and equally distributed. The model is used to analysis the energy cost change of freight hub for example. Through the analysis and calculation of the energy consumption data of freight hub, the conclusion...

The flowing bottomhole pressure (FBHP) of gas wells was affected by many factors. Although a lot of research works have been done to predict the FBHP and at least more than ten models were proposed, but no one can effectively provide an accurate results for all ranges of production data and conditions...

In the study, the AVL-FIRE software had been adopted to numerical effect analysis on combustive process of the engine. The result shows that numerical simulation results are consistent with the tested pressure, ignition point of ignition diesel is 2 ø CA ATDC, ignition point of natural gas is 2.25 ø...

As the challenges associated with developing carbonate reservoirs intensify, acidized fracturing has emerged as a crucial method for facilitating the efficient extraction of oil and gas. Slickwater fracturing fluid is the most commonly utilized among these options. Nevertheless, its drag reduction capabilities...

Oil and Gas Industry processing crude oil into fuel in refineries. Technology in refineries evolve over time, but damage and failures still found in it and effected to environmental pollution, asset losses, and incident fatality. One of the causes is lack of standard compliance and quality control while...

In view of the existing problems in the coal sample collection method of the coal seam gas content, a sampling method of fast sealing and sampling in coal seam drilling is proposed and the method's control signal can achieve the non-contact transmission by electromagnetic induction principle. The equivalent...

In order to overcome the disadvantages of the existing negative pressure adsorption methods, a new structure of non-gas source negative pressure adsorption is proposed. On the basis of this structure, a physical prototype was made. According to the motion model of the prototype, the stability condition...

April 10, 2017, carrying 140,000 tons of crude oil "joint power" successfully berthing Myanmar Buddha Mude Island, and began to unload crude oil, which is a landmark moment, the Sino-Burmese crude oil pipeline project put into operation China-Myanmar oil and gas pipeline is China's Kazakhstan, Central...

The multichamber device belongs to pulsed methods of forming and is mainly intended for use in small-scale production. The process of forming is carried out under pressure of an elastic disk due to kinetic energy of the piston accumulated throughout the working cycle. The piston is accelerated under...

Based on the requirements of an experiment, this paper designs a gas sampling instrument with distributed design method, and realizes the automatic collection of toxic samples and real-time communication in multiple points within an enclosed space, providing certain material conditions for the successful...

In the rapidly evolving business environment and intense competition, including in the LPG distribution industry, companies distributing subsidized LPG must be prepared to compete. To remain competitive, businesses need to enhance customer satisfaction to ensure long-term sustainability. Price and distribution...

3D geological modeling technique, as a comprehensive characterization method for oil and gas reservoirs, is widely applied in the process of oil and gas field development. Addressing the challenge of unclear geological characteristics in the early exploration stage of atmospheric shale gas reservoirs,...

EGR system is electronically control system for exhaust gas recirculation. This article conducts a detailed research on the EGR control stagy by a systematical elaborate on development procedure, a profoundly discussion to the components and structural software design, an overall consideration to the...

Long-distance pipeline has always played a significant role and kept its basic position in the West-East Gas Transmission and West-East Oil Supply programs in China. If natural gas or petroleum is not supported by pipeline, its transmission will be inevitably more dangerous to some extent. The study...

In order to specifically support the technology trend of increased miniaturization of Micro Electro Mechanical Systems (MEMS) devices, highly porous ZrCoCe non-evaporable getter (NEG) film has been produced by DC magnetron sputtering from a preformed ZrCoCe alloy target. The porous film is composed of...

Down pushed flow anaerobic reactor (DPAR) was adopted in the paper to reveal the yielding gas process by taking swine manure as the material under different volume organic loading (3.11, 4.44, 5.78 gTS.L-1.d-1) and to detect the optimal volume organic loading for semi-dry fermentation of swine manure....

Hanil Jaya Steel company is engaged in reinforcing steel fins with various deformed and according to the Indonesian National Standard (SNI). The product produced by this company is Reinforced Iron or commonly known as Esser Concrete. One of the most important processes in the manufacturing stage of reinforcing...

In the absence of urea, urease is demonstrated to catalyze the hydrolysis and polycondensation of the SnCl2 aqueous system to form crystalline mesoporous SnO2 at room temperature. The resulting SnO2 has a high specific surface area of 231~248 m2 g-1 with uniform pore size at 3.3nm, and the porous structure...

This research was done to investigate the effect of blend essential oil EOs1 with pine (Pinus merkusii; Jungh. and de Vriese) essential oil as the main component on feed nutrient digestibility and methane production. Blend essential oil consist of pine and eucalyptus (Melaleuca leucadendra (L.) essential...

Improving the efficiency of balance control in the gas transmission system is an urgent task. Applying intelligent techniques such as artificial neural networks or adaptive hybrid neural fuzzy systems (ANFIS), combining the advantages of neural networks and fuzzy logic, could be such a solution. The...

The Implementation of public sectors such as transportation, oil and gas is done by the government as a regulator and the State Owned Enterprises as operators. First, the form of business was a state company. Next, it was transformed into a public company which later has become a limited liability company...

Rock burst is one the world's worst coal mine disaster, rock burst accident-prone nature and severity of injuries to become one of the focus of attention, rock burst is an extremely complex dynamic phenomena, is home to cutting-edge research topics of major coal mine safety. Rock burst prevention is...

The statics mechanic model of the casing-cement-formation is established in this paper. Effects of formation and cement characteristics on casing strength are studied under injection-production condition. The examples show that the maximum stress occurs in the internal wall of the casing, along the orientation...