8 results about "Compressed natural gas" patented technology

This disclosure presents a method for dispensing compressible fluids, specifically natural gas, using a heat exchanger to optimize temperature and pressure conditions. The process involves receiving a first supply stream at an initial temperature and expanding a second supply stream to a lower pressure. Heat is exchanged between these streams within the heat exchanger, reducing the temperature of the first stream for efficient dispensing. This method is particularly suited for filling compressed natural gas (CNG) tanks, ensuring continuous operation without interruptions. The system maintains the first stream's pressure below 4,500 psig and achieves a target density based on reference conditions. Additionally, the method supports integration with natural gas pipelines, maintaining suitable discharge temperatures. The approach enhances energy efficiency by eliminating the need for auxiliary refrigeration, making it ideal for onsite wellhead applications. This innovative system offers a streamlined solution for CNG operations, promoting economic and environmental benefits.

The present invention relates to a cylinder valve for compressed natural gas cylinder with integrated pressure reducing function, which is connected to a general burner in a plug and play manner. The cylinder gas of the present invention is improved to increase the safety of gas use and to make it easier to adjust the required gas flow rate. The cylinder valve comprises a first part as an improved part, a second part as a main part directly connected to compressed natural gas, and a third part as an evaporator part. The second part contains a diaphragm in order to accelerate the gas flow, and the third part is an evaporator which is used to overcome the clogging by accelerating the evaporation of the clogging formed due to the cooling caused by the pressure drop.

The utility model relates to compressed natural gas storage well leak detection device technical field discloses a compressed natural gas storage well leak detection device, including detection device main part, both sides of detection device main part all are fixedly installed with antiskid pad, one side fixed mounting of detection device main part front -end has the movable shaft, one side outer surface movable joint of movable shaft has the protective door, when using this device, can through the second protection structure that the sliding cover and the connecting groove of setting avoided the detection head in non -use state to expose in dust or mechanical impact environment, adopts the arc clamping piece cooperation reset spring and the protective soft pad, when the storage state, automatic fixed detection head, prevents the connection line winding, avoids the probe surface wear and tear again, antiskid push pad design makes the sliding cover operation more convenient, can reduce the risk of skidding in the process of opening and closing simultaneously, can bring better use prospect.

An oxidation catalyst composition suitable for at least partially converting gaseous hydrocarbon emissions, such as methane, is provided. The oxidation catalyst composition includes at least one platinum group metal (PGM) component supported on a porous zirconia-containing material that provides a function of hydrocarbon conversion activity. The porous zirconia-containing material is at least 90 wt% monoclinic phase. Further, the PGM component can include at least one platinum group metal in the form of nanoparticles deposited as a colloid. The oxidation catalyst composition can be used to treat emissions from lean-burn compressed natural gas engines.

The invention relates to a catalytic material for treating exhaust gas produced by a natural gas engine, the catalytic material comprising a molecular sieve and a platinum group metal (PGM) supported on the molecular sieve, wherein the molecular sieve has a framework comprising silicon, oxygen, and germanium, and has a heteroatom T-atom content of < about 0.20 mol%, wherein the germanium is present in an amount of 15 mol% to 20 mol%. The invention also relates to a catalyst article and a compressed natural gas combustion and exhaust system.

The present application belongs to the field of resource allocation, and particularly relates to a compressed natural gas resource allocation method, device and equipment, the method comprising: constructing a compressed natural gas resource allocation optimization model; the optimization model comprises a target function and a constraint condition; generating a plurality of initial matrices according to the total amount of transport vehicles, the total amount of gas stations and random initial numbers; wherein the elements in each initial matrix represent whether the destination of the transport vehicle corresponding to the element is the gas station corresponding to the element; optimizing the plurality of initial matrices based on an improved whale algorithm and the optimization model to obtain a best solution matrix; and determining a compressed natural gas resource allocation scheme according to the best solution matrix. The present application solves the problems of high cost and low efficiency of large-scale CNG gas station resource allocation scheme planning.

This disclosure presents a method for dispensing compressible fluids, specifically natural gas, using a heat exchanger to optimize temperature and pressure conditions. The process involves receiving a first supply stream at an initial temperature and expanding a second supply stream to a lower pressure. Heat is exchanged between these streams within the heat exchanger, reducing the temperature of the first stream for efficient dispensing. This method is particularly suited for filling compressed natural gas (CNG) tanks, ensuring continuous operation without interruptions. The system maintains the first stream's pressure below 4,500 psig and achieves a target density based on reference conditions. Additionally, the method supports integration with natural gas pipelines, maintaining suitable discharge temperatures. The approach enhances energy efficiency by eliminating the need for auxiliary refrigeration, making it ideal for onsite wellhead applications. This innovative system offers a streamlined solution for CNG operations, promoting economic and environmental benefits.