摘要:
In some embodiments, a monoolefin production system comprising an extraction-hydrogenation zone for extracting a highly unsaturated hydrocarbon from an olefin stream into a polar solvent and, in situ, hydrogenating the highly unsaturated hydrocarbon to a monoolefin. In other embodiments, monoolefin production systems include an extraction-hydrogenation zone for performing the extraction and hydrogenating steps in situ. In alternative embodiments, the hydrogenation zone is disposed downstream from the extraction zone.
摘要:
In some embodiments, methods of producing monoolefins include contacting an olefin stream with a polar solvent to extract a highly unsaturated hydrocarbon from the olefin stream, followed by contacting the polar solvent with a hydrogenation catalyst in the presence of hydrogen at conditions effective to hydrogenate the highly unsaturated hydrocarbon to a monoolefin. The monoolefin then desorbs from the polar solvent and enters the purified olefin stream, allowing the polar solvent to be recycled. In other embodiments, monoolefin production systems include an extraction-hydrogenation zone for performing the extraction and hydrogenating steps in situ. In alternative embodiments, the hydrogenation zone is disposed downstream from the extraction zone.
摘要:
A sorbent composition comprising a vanadium compound and a TiO2 support material is disclosed. Methods of making and using the composition to remove heavy metals or heavy metal containing compounds from a fluid stream are also provided. Such methods are particularly useful in the removal of mercury and mercury compounds from flue gas streams produced from the combustion of hydrocarbon-containing materials such as coal and petroleum fuels.
摘要:
An electronic mirror system. The system includes an electronic device including a housing having a front side, a rear side, and an interior volume that includes a first power supply and a first wireless transceiver. A display is disposed on the front side of the housing. A first camera including a frame with a first mounting fastener, a second power supply, and a second wireless transceiver is removably securable to the rear side of the housing. The electronic device is in operable communication with the first camera via the first wireless transceiver and the second wireless transceiver. The first camera is configured to continuously record images and transmit the continuously recorded images to the electronic device via the second wireless transceiver. The electronic device is configured to receive the continuously recorded images, and the display is configured to display the continuously recorded images.
摘要:
A sour gas sweetening solution comprises an aqueous solution of a silicon-containing compound and an amine-containing compound. The silicon-containing compound is preferably maintained at a concentration less than or equal to 500 parts per million (“ppm”) more preferably less than or equal to 400 ppm, and most preferably between about 100 ppm and 300 ppm as SiO2. The silicon-containing compound can be MxSiyOz, wherein “M” is a metal and “x”, “y” and “z” are numbers greater than zero. The amine-containing compound can be selected from the group consisting of primary amines, secondary amines and tertiary amines.
摘要:
A composition, containing vanadium, potassium and a support is disclosed. A method of preparing such composition is also disclosed. The composition is employed in a process to remove a heavy metal from a gaseous feed stream which can optionally include a separate heavy metal adsorption stage.
摘要:
A sorbent composition comprising a vanadium-phosphorus-oxide material is disclosed. Methods of making and using the composition to remove heavy metals or heavy metal containing compounds from a fluid stream are also provided. Such methods are particularly useful in the removal of mercury and mercury compounds from flue gas streams produced from the combustion of hydrocarbon-containing materials such as coal and petroleum fuels.
摘要:
A composition comprising a base component and a polymer, and a method of making said composition, are disclosed. The composition thereby obtained is then used as a catalyst for isoparaffin-olefin alkylation.
摘要:
Novel anti-corrosion compositions and methods of using those solutions are provided. The solutions are preferably aqueous solutions comprising silicate and a silicate polymerization inhibitor. Upon contact with a metal surface to be protected, a silicate layer is formed on the surface, thus protecting that surface from corrosion. The solutions are useful in numerous systems, including oil and gas pipelines and wells and in amine treatment plants.
摘要:
A sour gas sweetening solution comprises an aqueous solution of a silicon-containing compound and an amine-containing compound. The silicon-containing compound is preferably maintained at a concentration less than or equal to 500 parts per million (“ppm”) more preferably less than or equal to 400 ppm, and most preferably between about 100 ppm and 300 ppm as SiO2. The silicon-containing compound can be MxSiyOz, wherein “M” is a metal and “x”, “y” and “z” are numbers greater than zero. The amine-containing compound can be selected from the group consisting of primary amines, secondary amines and tertiary amines.