Abstract:
The present invention provides a process for treating a natural gas stream comprising sending a natural gas stream to at least one membrane unit to produce a permeate stream containing a higher concentration of carbon dioxide and a retentate stream containing a lower concentration of carbon dioxide. Then the retentate stream is sent to an adsorbent bed to remove carbon dioxide and other impurities to produce a natural gas product stream. The regeneration gas stream is sent through the molecular sieve adsorbent bed to desorb the carbon dioxide. In one process flow scheme, the regeneration stream is combined with the permeate stream from the membrane unit. Then the combined stream is sent to an absorbent column to remove carbon dioxide from the permeate stream to produce a second natural gas product stream. In the alternative flow scheme, a second membrane unit is used to improve efficiency.
Abstract:
An injector for delivering medicament comprises a collapsible container (1002) for containing the liquid medicament, a normally-closed valve (1004) coupled to the collapsible container (1002) for retaining the liquid medicament within the collapsible container and an injection means (1006) for delivering the liquid medicament from the collapsible container. The liquid medicament is maintained under pressure by a pressurising means (1003) which pressurises the liquid medicament such that it is delivered by the injection means (1006) when the normally-closed valve (1004) is opened.
Abstract:
A nozzle (12), an inhaler (Fig.l) with a nozzle (12) and a method for producing a nozzle are proposed. The nozzle comprises a hole (21) formed in a flat plate (22) by laser drilling. The hole is tapered so that it widens towards the outlet side. The hole comprises a non-circular cross section and an inner sharp edge (28). This supports breaking up of the liquid flow into droplets.
Abstract:
A dispensing device, a storage device and a method for dispensing a medical formulation are proposed. Multiple doses of the formulation are stored in a carrier having multiple storage members, each storage member containing a single dose. Each storage member comprises one duct or nozzle for dispensing the respective dose. The dispensing direction of the ducts or nozzles is directed in a lengthwise or indexing direction of the carrier. The storage device of the carrier is a peelable blister strip, wherein the ducts or nozzles can be opened one after the other by peeling the blister strip.
Abstract:
A dispensing device having a storage device and an air pump for dispensing a medical formulation is proposed. The storage device comprises multiple inserts, each insert containing a single dose of the formulation. Each insert is located in a separate and sealed cavity. The cavities can be individually opened for dispensing the respective dose from the respective insert.
Abstract:
A dispensing device having a storage device and an air pump for dispensing a medical formulation is proposed. The storage device comprises multiple inserts, each insert containing a single dose of the formulation. Each insert is located in a separate and sealed cavity. The cavities can be individually opened for dispensing the respective dose from the respective insert.
Abstract:
A dispensing device (1) having a storage device (4) and an air pump (18) for dispensing a medical formulation (2) is proposed. The storage device (4) comprises multiple inserts (6), each insert (6) containing a single dose of the formulation (2). Each insert (6) is located in a separate and sealed cavity (7). The cavities (7) can be individually opened for dispensing the respective dose from the respective insert (6).
Abstract:
A discharge device and a method for evaporating a liquid to the atmosphere are proposed. The liquid pressurized by gas is supplied to an evaporator (7) via a flow restriction device (5) which restricts the flow rate of the liquid such that continuous release and evaporation surface which is designed preferably by micro structuring such that the surface area is increased and/or the liquid forms an essentially uniform film on the evaporation surface.
Abstract:
A dispensing device, a storage device and a method for dispensing powder are proposed. The powder is dispensed through a duct with a flat cross section to deagglomerate the powder and to generate a spray with fine particle size. A storage chamber for the powder may be closed by a bursting element, wherein pressurized gas can burst the bursting element for discharging the powder. Preferably, the cross section of a gas supply to the storage chamber controls the gas flow during dispensing of the powder. In particular, the storage device comprises multiple storage chambers and associated ducts or nozzles, so that each dose of powder can be dispensed through a separate duct or nozzle. The powder may be forced through the duct by a gas pressure of less than 300 kPa to de-agglomerate the powder and/or to generate the spray. Preferably, the gas pressure reaches or exceeds a peak value before the bursting element bursts and, then, the powder is dispensed by a lower gas pressure.
Abstract:
One or more continuous rotary contactors, also known as adsorbent wheels, containing adsorbent materials are employed to dry, purify or separate components from a gas stream. The invention has particular application in treating air prior to cryogenic air separation operations.