Abstract: An improved apparatus strips HPNA's from hydroprocessed streams in a fractionation column having a split shell configuration. Only one vapor stripping feed is required to the split shell of the fractionation column. The resulting reduction in steam requirement provides a superior fractionation in the column.

Abstract: A center feed system for use within a delayed coking system, or any other similar system is described. The center feed system features an inlet sleeve which slidably engages a retractable nozzle, with inlet and outlet, in fluid connection with a feed source of residual byproduct, allowing residual byproduct to flow from the feed source into the interior of a vessel, thus effectuating or inducing even thermal distribution throughout the vessel.

Abstract: In a system for thermal cracking gaseous feedstocks, the system including a gas cracker for producing an effluent comprising olefins, at least one transfer line exchanger for the recovery of process energy from the effluent and a water quench tower system, a process for extending the range of system feedstocks to include liquid feedstocks that yield tar is provided. The process includes the steps of injecting a first quench fluid downstream of a primary transfer line exchanger to quench the process effluent comprising olefins, separating in a first separation vessel a cracked product and a first byproduct stream comprising tar from the quenched effluent, directing the separated cracked product to a water quench tower system and quenching the separated cracked product with a second quench fluid to produce a cracked gas effluent for recovery and a second byproduct stream comprising tar. An apparatus for carrying out such process is also provided.

Abstract: In a system for thermal cracking gaseous feedstocks, the system including a gas cracker for producing an effluent comprising olefins, at least one transfer line exchanger for the recovery of process energy from the effluent and a water quench tower system, a process for extending the range of system feedstocks to include liquid feedstocks that yield tar is provided. The process includes the steps of injecting a first quench fluid downstream of the at least one transfer line exchanger to quench the process effluent comprising olefins, separating in a separation vessel a cracked product and a first byproduct stream comprising tar from the quenched effluent, directing the separated cracked product to the water quench tower system and quenching the separated cracked product with a second quench fluid to produce a cracked gas effluent for recovery and a second byproduct stream comprising tar. An apparatus for cracking a liquid hydrocarbon feedstock that yield tar is also provided.

Abstract: Partitions for columns for the separation of components or chemical reactions are assembled from plates or wall elements provided with plug and clamp connectors along respective edges and formed by strips so that the partitions can be easily and safely assembled and disassembled.

Abstract: The invention relates to the recovery of excess gas which is formed in an oil/gas treatment plant, more specifically in a production plant where gas-containing oil in a separation plant is separated into a gas fraction and an oil fraction which are individually advanced for respective applications. The excess gas is advanced for recovery through a special collection conduit (40) on which there is coupled a branch conduit (72) which leads to a torch (74), and which comprises valves (76, 78) which are primarily closed, but which secondarily are adapted to open for the flow of gas to a torch (74) when the pressure of the excess gas exceeds a given value and/or when an irregular emergency situation occurs in the plant. There is also mentioned a concrete solution for joining of the excess gas with the extracted process gas.

Abstract: A dividing wall column for separating a mixture into 3 or more fractions by distillation is described, where at least one dividing wall is detachably attached within the dividing wall column.

Abstract: A closure device adapted for attachment onto the upper head of a coking drum to prevent hot vapors escaping during drum decoking operations. The closure device includes a cylindrical-shaped housing having a rotatable ball valve and horizontal elongated stem provided in its lower portion, and a cover unit including a packing gland provided at the housing upper end. A rotatable cutting tool provided within the housing above the ball valve has a drive rod extending upwardly through the cover unit packing gland. During operations, the ball valve is opened and the drive rod and its attached cutting tool can be extended downwardly through the ball valve cylindrical-shaped opening into the coking drum and rotated, so as to cut and dislodge coke deposited in the drum.

Abstract: A process for disposing of filter media is provided, which process comprises (a) mixing a filter media with a hydrocarbonaeous mixing stream to form a media-hydrocarbon mixture and (b) feeding said media-hydrocarbon mixture to a coking vessel. Preferred coking vessels include delayed cokers, fluidized cokers, and coke calciners. An apparatus for disposing of filter media is provided, which apparatus comprises (a) a coking vessel; (b) a mixer to mix the filter media with a hydrocarbonaeous mixing fluid to form a media-hydrocarbonaeous fluid mixture; and, (c) a feed means to feed the media-hydrocarbonaeous fluid mixture to the coking vessel. Preferably, the apparatus comprises a size reduction means to reduce the size of the filter media to form a media staple comprising fiber clusters having a desired shape and size.

Abstract: A combination filter and evaporator unit for use in small engine applications includes a filter member that is screw threadedly engaged to the evaporator unit to facilitate replacement of filter media as needed. The design of the unit constrains incoming oil to flow first through the filter media and then to an evaporation chamber. A central hub and a bottom wall of the evaporation chamber are directly heated by a heating element, and the evaporation chamber is closed by an imperforate lid so that heat loss is inhibited.

Abstract: A combination filter and evaporator unit for use in small engine applications includes a filter member that is screw threadedly engaged to the evaporator unit to facilitate replacement of filter media as needed. The design of the unit constrains incoming oil to flow first through the filter media and then to an evaporation chamber. A central hub and a bottom wall of the evaporation chamber are directly heated by a heating element, and the evaporation chamber is closed by an imperforate lid so that heat loss is inhibited.