The invention relates to a method for analyzing the content of at least one contaminant in a cryogenic liquid, wherein a known amount of liquid L constituting the initial liquid is injected at the pressure P into an enclosure; a predetermined fraction of the liquid present in the enclosure is vaporized by heating same; the vapor thus generated is discharged from the vaporizing enclosure to maintain a pressure no higher than the pressure P during the vaporization phase; the amount of liquid thus vaporized, less than L, is precisely controlled so that the amount of contaminant in the residual liquid present in the enclosure is substantially equal to that of the initial liquid, which implies that the concentration thereof is multiplied by a previously determined factor; a sample of residual liquid is collected; the contaminant content is measured after total vaporization of the residual liquid sample; and the contaminant content in the initial liquid is deduced from the measurement of contaminant in the residual liquid.

1. Test device for determining the particle load of high-pressure hydrogen.

2. A test device for determining the particle load of pressurized hydrogen, comprising a housing (2), which has an inlet (4) and an outlet (8) for the inflow or outflow of hydrogen, respectively, and a sampling chamber (52), in which a filter holder (44) for a test filter (58) is provided, through which a sample amount of hydrogen can flow during a test procedure and which, after the test procedure has been completed, can be removed from the sampling chamber (52) for evaluating of the deposition of particles, and having a venting device (64, 70) for reducing the pressure in the sampling chamber (52), is characterized in that the venting device (64, 70) is arranged inside the housing (2) and discharges any remaining hydrogen, at least partially, in the direction of the inlet (4) of the test device after the hydrogen has stopped flowing from the testing device.

A tank state estimating method of estimating a state in a tank at a predetermined point in time on a sailing course of an LNG carrier is provided. The LNG carrier carrying LNG stored in the tank as a cargo. The tank state estimating method includes: a first step of acquiring information related to specification of the tank; a second step of acquiring information related to a state in the tank at a start point of a target section on the course; a third step of acquiring information on a predictive value of liquid fluctuation of the LNG in the tank during the section, the predictive value being obtained on a basis of a weather forecasting value during the section and information on the weather forecasting value; and a fourth step of calculating the state in the tank at an end point of the section by thermal transfer calculation based on thermodynamics on a basis of the information acquired in the first to third steps in assuming that a heat input to the tank during the section is used for vaporization of the LNG in the tank.

Disclosed is a liquefied natural gas storage apparatus. The apparatus includes a heat insulated tank and liquefied natural gas contained in the tank. The tank has heat insulation sufficient to maintain liquefied natural gas therein such that most of the liquefied natural gas stays in liquid. The contained liquefied natural gas has a vapor pressure from about 0.3 bar to about 2 bar. The apparatus further includes a safety valve configured to release a part of liquefied natural gas contained in the tank when a vapor pressure of liquefied natural gas within the tank becomes higher than a cut-off pressure. The cut-off pressure is from about 0.3 bar to about 2 bar.

A method for the production of a bladder accumulator (10) that separates two media chambers (16, 18) from one another in a storage housing (12) by a bladder body (14). The following production steps include extruding a plastic tube over the bladder body (14), shaping the plastic tube with the integrated bladder body (14) in a molding tool that corresponds to a predeterminable plastic core container (20), and winding at least one plastic fiber from the outside on the plastic core container (20) for the purpose of creating the storage housing (12).

A method for filling a fluid container with a cryogenic fluid, the method including the step of reducing with a container temperature reducer a container temperature of the fluid container prior to adding the cryogenic fluid to the fluid container. The method can include additional steps, including: compressing with a compressor the cryogenic fluid based at least partially on the container temperature, controlling with a controller the extent that the compressor compresses the cryogenic fluid, cooling with a fin pack the cryogenic fluid, filtering with a filter the cryogenic fluid, analyzing with a fluid analyzer a fluid within the cryogenic fluid, monitoring with a water monitor a water content of the cryogenic fluid and/or monitoring with a fluid sensor a fluid property of the cryogenic fluid.

Disclosed is a liquefied natural gas storage apparatus. The apparatus includes a heat insulated tank and liquefied natural gas contained in the tank. The tank has heat insulation sufficient to maintain liquefied natural gas therein such that most of the liquefied natural gas stays in liquid. The contained liquefied natural gas has a vapor pressure from about 0.3 bar to about 2 bar. The apparatus further includes a safety valve configured to release a part of liquefied natural gas contained in the tank when a vapor pressure of liquefied natural gas within the tank becomes higher than a cut-off pressure. The cut-off pressure is from about 0.3 bar to about 2 bar.

A quality control method for the preparation of dry compressed gas cylinder including passivating and/or preparing the compressed gas cylinder with the technique to be validated, filling the passivated/prepared compressed gas cylinder with gaseous carbon dioxide to a normal working pressure, wherein the gaseous carbon dioxide has a known .sup.18O isotope ratio, maintaining the pressurized gas cylinder at ambient temperature for a first predetermined period of time, and gradually emptying the pressurized gas cylinder, while simultaneously measuring the .sup.18O isotopic ratio, wherein a predetermined variation in the measured isotopic ratio of .sup.18O indicates a properly prepared cylinder.

Scalable greenhouse gas capture systems and methods to allow a user to off-load exhaust captured in an on-board vehicle exhaust capture device and to allow for a delivery vehicle or other transportation mechanism to obtain and transport the exhaust. The systems and methods may involve one or more exhaust pumps, each with an exhaust nozzle corresponding to a vehicle exhaust port. Upon engagement with the vehicle exhaust port, the exhaust nozzle may create an air-tight seal between the exhaust nozzle and the vehicle exhaust port. A first pipe may be configured to transport captured exhaust therethrough from the exhaust nozzle to. The captured exhaust may be at least temporarily stored in an exhaust holding tank connected to and in fluid communication with the first pipe.

A system supplies gas to a high-pressure gas-consuming apparatus and a low-pressure gas-consuming apparatus of a floating structure including a tank. The supply system includes: a first supply circuit, a second supply circuit, a return line, a first heat exchanger and a second heat exchanger. The return line includes a flow-regulating member. The supply system includes a device for managing the supply system which includes a control module to control the flow-regulating member based on the characteristics of the gas.