Method and apparatus for controlling air pollution caused by volatile emissions from petroleum storage tanks and the like, wherein such volatile emissions or vapors are passed through a brine or glycol solution having a controlled temperature range for separating petroleum hydrocarbons, water and air and for collecting the hydrocarbons so that they do not escape to the environment.

Process and apparatus for removing contaminants from a gas stream by heating a liquid cleansing medium, introducing the liquid cleansing medium into the gas in vaporized and atomized form through a nozzle having a variable throat area, mixing the gas and the high energy cleansing medium thereby entrapping the contaminants, and separating clean gas from the cleansing medium containing the contaminants. The flow rate of the liquid cleansing medium is varied by changing the throat area of the nozzl...

A portable cannon tube cleaning method comprising the steps of pulling a trailer to the site of a cannon tube to be cleaned, adjusting the height of a main cleaner chassis assembly to be in line with the cannon tube to be cleaned, fitting the main cleaner chassis assembly against a face of the cannon tube, fitting a hollow adapter plate on the outer diameter of the cannon tube, and hauling a cleaning brush assembly through the cannon tube for as many cycles as required to adequately clean the tu...

A method and a quaternary ammonium or phosphonium composition used therein for inhibiting retarding, mitigating, reducing, controlling and/or delaying formation of hydrocarbon hydrates or agglomerates of hydrates. The method may be applied to prevent or reduce or mitigate plugging of conduits, pipes, transfer lines, valves, and other places or equipment where hydrocarbon hydrate solids may form under the conditions. At least one quaternary ammonium or phosphonium compound is added into the proce...

An inkjet printer having, a white color head to jet a white color ink; a plurality of process color heads to jet respective process color inks; and a controller to control operations of the white color head and the plurality of process color heads, wherein the controller selectively conducts a control of a top face printing where at least one of the plurality of the process color heads jets the respective process color ink after the white color head jets the white color ink, or a control of a bo...

The ball trap of the present invention is configured for connection in a pipeline such that the main flow path of the fluid in the pipeline passes through the ball trap. The ball trap includes a sieve conduit with a safety-release sieve gate. The sieve gate is displaceable between a closed position, in which cleaning balls are trapped in the ball trap, and an open position, in which the impedance of the fluid flowing in the pipeline is lowered. The system is configured such that the gate is norm...

A method is disclosed for inhibiting the plugging of a conduit for the transport of hydrocarbon fluids by gas hydrates., wherein use is made of a hydrate formation inhibitor component of formula wherein two of R.sub.1 -R.sub.4 are independently normal or branched alkyls having 4 or 5 carbon atoms, two of R.sub.1 -R.sub.4 are independently representing organic moieties having at least 8 carbon atoms, A represents a nitrogen or a phosphorus atom, Y represents an anion and wherein at least one of R...

A method is disclosed for inhibiting the plugging of a conduit for the transport of hydrocarbon fluids by gas hydrates, wherein use is made of a hydrate formation inhibitor component of formula wherein two of R.sub.1 -R.sub.4 are independently normal or branched alkyls having 4 or 5 carbon atoms, two of R.sub.1 -R.sub.4 are independently representing organic moieties having at least 8 carbon atoms, A represents a nitrogen or a phosphorus atom, Y represents an anion and wherein at least one of R....

Descaling elements for cleaning cooling water tubes within a steam condenser are received within a water soaking vessel. A wire net is stretched within said vessel, and said vessel is charged with water until the water level reaches a predetermined limit line above said wire net. The presence of the wire net prevents the descaling elements from being floated up to the water surface. A considerably large space is formed between the water surface and the ceiling of the vessel. Said space communica...

A multiple-view directional display is provided having an image display element and a parallax optic (13). The display element (8) comprises substrates (6, 19) between which the display layer (8) is sandwiched and the parallax optic (13) is disposed within the image display element.