The use of natural gas (NG) in dual-fuel heavy-duty engines has the potential to reduce pollutant and greenhouse gas (GHG) emissions from the transport sector when compared to the conventional diesel engines. However, NG composition and methane slip…
Areas located at or near natural gas (NG) well or storage sites can use NG to partially or totally replace the diesel fuel used to power equipment or for local transportation. This study investigated a dual-fuel diesel-NG engine operating at low load…
The fluctuation of wind and solar power is one of the important constraints on their development. It is generally believed that hydrogen production using renewable energy and applying the in-service natural gas pipelines to transport hydrogen-natural…
Due to the high moisture content and strong corrosion of oilgas mixtures, the electrochemical corrosion and perforation leakage of their transportation pipelines occur frequently in the western oil fields of China. Using various methods, this work…
Commercial exploitation of hydrogen-rich natural gas (CH4/C2H6/H2, HRNG) requires the development of a technology platform for safe and economical gas transportation and storage. Recent discoveries confirm that HRNG gas mixtures can be stored in HRNG…
It is very important to predict the condensation of liquid hydrocarbons when transporting natural gas with pipelines in industry. Using a high-pressure transparent sapphire cell, the hydrocarbon dew points of eight synthetic natural gas mixtures were…
Natural gas mixture flowing in the transportation pipeline is impure owing to the presence of various impurities. The presence of non-hydrocarbons impurities in natural gas mixture impacts the natural gas properties at different extents. The effect…
In-situ combustion is considered as one of the most effective ways to enhance recovery of heavy crude oils and bitumens. The oxygen from injected air reacts with the heavy components of the crude oil, forming a hot zone in which the cracking and…
The removal of acidic gases and impurities from gas mixtures is a critical operation in the oil and gas industry. Several separation techniques, e.g., cryogenic fractionation, polymeric membranes, zeolites, and metalorganic frameworks, are employed…
Migration and distribution of gas mixtures of hydrogen generated in severe accidents are related to thermal hydraulic behavior of the containment, which is a key issue for safety analysis. A series of experiments are conducted on a large-scale test…
Scope: This part of ISO 20765 specifies a method to calculate volumetric and caloric properties of natural gases, manufactured fuel gases, and similar mixtures, at conditions where the mixture may be in either the homogeneous (single-phase) gas…
The GERG-2008 equation of state is the approved ISO standard (ISO 20765-2) for the calculation of thermophysical properties of natural gas mixtures. The composition of natural gas can vary considerably due to the diversity of origin. Further…
Methods for determination of water content in natural gas are a very important asset for the oil and gas industry. However, predicting water content can be a challenging task in some conditions. This is the case when acid gases are present in natural…
As unconventional natural gas and hydrate-based gas separation (HBGS) technology has attracted increasing attention, the safe and effective improvement of the reaction rate and separation effect of hydrates has also become the focus of extensive…
Areas located at or near natural gas (NG) well or storage sites can use NG to partially or totally replace the diesel fuel used to power equipment or for local transportation. This study investigated a dual-fuel diesel-NG engine operating at low load…
Rubbery siloxane membranes are utilized in industry for the rejection of nitrogen and for the concentration of heavy hydrocarbons in the membrane permeate stream. In this work, modified crosslinked siloxane terpolymer…
When designing high-pressure gas pipelines, it must be ensured that a running fracture is arrested within the shortest possible length. The semi-empirical Battelle Two-Curve Model (BTCM) proposed in the early 1970s is still widely used in the…
Commercial exploitation of hydrogen-rich natural gas (CH4/C2H6/H2, HRNG) requires the development of a technology platform for safe and economical gas transportation and storage. Recent discoveries confirm that HRNG gas mixtures can be stored in HRNG…
To detect natural gas pipeline leaks, ethane in the natural gas can be used to discriminate it from background methane emissions. Our approach classifies samples of methane and simulated natural gas based on time-series data collected from a low-cost…