Described are systems and methods of storing adsorbing diborane on carbon adsorption medium.

Described are storage and dispensing systems and related methods for the selective dispensing germane (GeH.sub.4) as a reagent gas from a vessel in which the germane is held in sorptive relationship to a solid adsorbent medium that includes zeolitic imidazolate framework.

A system and device for monitoring the content of a gas/liquid or gas only containment vessel such as a cylinder is provided. The disclosed apparatus is easily affixed to a standard gas cylinder and configured to monitor the pressure of the cylinder contents and activate a visual and/or audio alarm when the contents of the gas/liquid cylinder are no longer in a liquid or partially liquid state as well as activate another visual and/or audio alarm at a prescribed pressure when the contents of the cylinder are nearing depletion.

The disclosure relates to a method and apparatus for cooling, preferably liquefying a boil off gas (BOG) stream from a liquefied cargo in a floating transportation vessel, said liquefied cargo having a boiling point of greater than −110° C. at 1 atmosphere and comprising a plurality of components, said method comprising at least the steps of: compressing a boil off gas stream (01) from said liquefied cargo in two or more stages of compression comprising at least a first stage (65) and a final stage (75) to provide a compressed BOG discharge stream (06), wherein said first stage (65) of compression has a first stage discharge pressure and said final stage (75) of compression has a final stage suction pressure and one or more intermediate, optionally cooled, compressed BOG streams (02, 03, 04) are provided between consecutive stages of compression; cooling the compressed BOG discharge stream (06) to provide a cooled vent stream (51) and a cooled compressed BOG stream (08); expanding, optionally after further cooling, a portion of the cooled compressed BOG stream (08) to a pressure between that of the first stage discharge pressure and the final stage suction pressure to provide an expanded cooled BOG stream (33); heat exchanging the expanded cooled BOG stream (33) against the cooled vent stream (51) to provide a further cooled vent stream (53).

A foot valve assembly according to the present invention includes: a cylindrical adapter attached to a lower opening end of a cylindrical pump column configured to accommodate a pump configured to be submerged in a handling liquid, the adapter configured to accommodate a suction port of the pump; a disc-shaped valve disc configured to open and close a lower opening of the adapter corresponding to raising and lowering of the pump; a biasing member that biases the valve disc toward the adapter; and an auxiliary valve configured to open and close corresponding to the raising and lowering of the pump and configured to assist in opening the valve disc when the valve disc is closed.

The alkylamine composition of the present disclosure contains: an alkylamine represented by the following formula (1) in an amount of 99.5% by volume or more; and water in an amount of 10 ppm by mass or more and 100 ppm by mass or less:

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wherein N is a nitrogen atom; R.sup.1 is a C1-C10 hydrocarbon group optionally having a ring, a heteroatom, or a halogen atom; R.sup.2 and R.sup.3 are each independently a hydrogen atom or a C1-C10 hydrocarbon group optionally having a ring, a heteroatom, or a halogen atom; provided that the hydrocarbon group, when it has a carbon number of 3 or more, may have a branched chain structure or a ring structure and that the heteroatom in the hydrocarbon group is a nitrogen atom, an oxygen atom, a sulfur atom, or a phosphorus atom; further, R.sup.1 and R.sup.2, when both of them are hydrocarbon groups having a carbon number of 1 or more, may be directly bonded to each other to form a ring structure; further, R.sup.1 or R.sup.2, which is directly bonded by a double bond to form a ring structure, may form an aromatic ring in the absence of R.sup.3; R.sup.1, R.sup.2, and R.sup.3 may be hydrocarbon groups which are the same as or different from one another; and R.sup.1 has at least one hydrogen atom at α carbon bonded to the nitrogen atom.

A method supply equipment for supplying a fluorine gas-containing gas which includes a sealing step of introducing a second fluorine gas-containing gas having a fluorine gas concentration in a range of ±10% of that of a first fluorine gas-containing gas into a portion between a container valve (3) and a pressure regulator (7) of a pipe (4) such that a pressure is lower than the gas pressure in a filled container (2). After the sealing step, a buffer tank (9) is brought into an opened state, and then the first fluorine gas-containing gas is supplied from the filled container (2) to the portion between the container valve (3) and the pressure regulator (7) of the pipe (4). Thereafter, the pressure regulator (7) is brought into an opened state, and then the first fluorine gas-containing gas is supplied to consumption equipment (20) while regulating a pressure by the pressure regulator (7).

Regulator assemblies can be tested using test fluids selected to have a molecular weight about that of a selected fluid to be dispensed from a fluid storage and delivery vessel including the regulator assembly. The test fluid can be a single gas or a mixture. The test fluid can have a molecular weight of between 80% and 110% of the molecular weight of the selected fluid dispensed from the fluid storage and delivery vessel. Regulator assemblies tested in this manner can pass evaluation when they show fewer than two spikes on the initiation of flow of the test gas. These regulator assemblies can be installed into fluid storage and delivery vessels, particularly for storage and delivery of pressurized fluids.

Embodiments of nitric oxide (NO) generation apparatuses, systems, and methods are provided. In some embodiments, an NO generation apparatus may include a reaction chamber having a liquid region and a gas region. The liquid region may be configured to contain a reaction medium and the gas region may be configured to contain a product gas comprising NO. The NO generation apparatus may also include a plurality of electrodes disposed in the reaction medium, and may include an energy source electrically connected to the plurality of electrodes and configured to apply a predetermined voltage or a predetermined current to at least one of the plurality of electrodes to generate NO. The NO generation apparatus may also include an inlet circuit configured to receive a carrier gas, and may include at least one sparger in fluid communication with the inlet circuit and configured to emanate bubbles of the carrier gas in the reaction medium.

A General-Purpose Multimodal Transportation Container (GPMTC) for transportation and storage of hazardous cargoes is fitted with a reservoir (1), a level sensor (5) installed downright and passing through the vertical centerline and the horizontal centerline of the reservoir (1) and with a pressure sensor (6), a liquid phase density sensor (8), a vapor phase density sensor (9), a temperature sensor (7) and a set unit (10) of gyros and the accelerometers. The said group of sensors (5-9) is used to measure such main physical parameters as the pressure, the density of the liquid phase, the density of the vapor phase, the temperature of the liquid and vapor phases at several points, the level of separation of the liquid and vapor phases, the displacement vector, and misalignment of the GPMTC's base with the horizontal plane. This data is necessary for a Central System Unit (11) to calculate the volume and mass of the liquid and vapor phases and the total mass of cargo. These sensors and telemetry equipment are triggered when the circuit is closed and opened at the moment of opening and closing of the GPMTC's shut-off valves and provide measurement data which allow in real time and anywhere in the world carry out metering and calculate the mass of gas, taking into consideration the vapor phase, at the beginning and end of the cargo operations with accuracy meeting the requirements of commercial metering. Also, this GPMTC is fitted with GPS devices with telemetry equipment based on the IRIDIUM system and antenna (12) and GSM networks to determine the location of the GPMTC at any time, with an interface for geographical data transfer, including actual and measured speed and direction.