Systems and methods for transporting a hydrocarbon are provided. The method can include introducing a fluid at a first pressure and a first temperature to an inlet of a pump and pressurizing the fluid within the pump to produce a pressurized fluid having a second pressure and a second temperature. The method can also include flowing at least a portion of the pressurized fluid through a first heat exchanger and back to the inlet of the pump. The heat exchanger can include a coil having an inlet and an outlet and a housing at least partially enclosing the coil and having a first opening and a second opening. A first end of the coil can be disposed proximate the first opening. The heat exchanger can also include a foundation for supporting the coil and the housing.

A heater coil for heating a feedstock comprises an inlet manifold and an outlet manifold having longitudinal extensions that are parallel. A plurality of process tubes are suspended from and in fluid communication with the inlet manifold and the outlet manifold. Each process tube comprises an inlet leg coupled to the inlet manifold, an outlet leg coupled to the outlet manifold, and a U-shaped portion disposed between the inlet leg and the outlet leg for passage of the feedstock therethrough. The inlet manifold and the outlet manifold are elevated with respect to the plurality of process tubes. Each of the plurality of process tubes is aligned such that a width of the plurality of process tubes extends along a direction that is not perpendicular to the longitudinal extensions of the inlet and outlet manifolds.

A system includes a waste heat recovery heat exchanger configured to heat a heating fluid stream by exchange with a heat source in a crude oil associated gas processing plant. The system includes a modified Goswami cycle energy conversion system including a first group of heat exchangers configured to heat a first portion of a working fluid by exchange with the heated heating fluid stream and a second group of heat exchangers configured to heat a second portion of the working fluid. The modified Goswami cycle energy conversion system includes a separator configured to receive the heated first and second portions of the working fluid and to output a vapor stream of the working fluid and a liquid stream of the working fluid; a first turbine and a generator are configured to generate power by expansion of a first portion of the vapor stream of the working fluid; a cooling subsystem including one or more cooling elements configured to cool a chilling fluid stream by exchange with a cooled second portion of the vapor stream of the working fluid; and a second turbine configured to generate power from the liquid stream of the working fluid.

A crude oil refinery pre-heat train (PHT) includes a crude oil stream pipeline system that extends through the PHT and is configured to carry a stream of crude oil from an inlet of the PHT to a furnace of the PHT; heat exchangers positioned in the crude oil stream pipeline system; and a control system. The heat exchangers include a first set of heat exchangers positioned in the crude oil stream pipeline system between the inlet of the PHT and one or more de-salters of the PHT; a second set of heat exchangers positioned in the crude oil stream pipeline system between the one or more de-salters of the PHT and one or more pre-flash drums of the PHT; and a third set of heat exchangers positioned between the one or more pre-flash drums of the PHT and the furnace of the PHT.

Devices, systems, and methods for cooling a gas is disclosed. A slurry is passed through a droplet generating device to produce droplets of the slurry. The slurry comprises a contact liquid and solids. A melting point of the solids is higher than a vaporization point of the contact liquid. A carrier gas is passed across the droplets to exchange heat between the carrier gas and the droplets. At least a portion of the heat transferred to the droplets melts the solids.

A heat exchanger assembly including an elongated tubular heat exchanger enclosure defining an interior chamber. A tube sheet is positioned within the interior chamber of the heat exchanger enclosure separating the interior chamber into a shell side and a channel side. The interior portion is configured to removably receive a tube bundle positioned within the shell side of the interior chamber. An annular sleeve member is positioned within the channel side of the interior chamber of the heat exchanger enclosure. An annular elastic torsion member is positioned within the channel side of the interior chamber of the heat exchanger such that the sleeve member is positioned between the tube sheet and the elastic torsion member. The elastic torsion member has an inner circumference deflectable relative to its outer circumference for torsioning the elastic torsion member.

An atmospheric-vacuum heat exchange system with a winding-tube heat exchanger, has a first and second heat exchanging group; a primary distillation tower (4) or flash tower; an atmospheric furnace (5); an atmospheric tower (6); a vacuum furnace (7) and a vacuum tower (8); each winding-tube heat exchanger has a shell-pass cylinder (370), a first and second shell-pass connecting tube (371,372), a first and second tube plate (330,340), a plurality of first and second tube box (310,320), a plurality of heat exchange tubes (360) spirally wounded with multiple spiral tube layers; the number of the first and second tube box (310, 320) are respectively N, and each spiral tube layer has N group(s) of the wounded heat exchange tubes (360), N is a natural number greater than or equal to 1. The loss of heat exchanger is reduced.

A heat transfer apparatus includes a tubular wall defining a lumen and multiple pipe elements arranged about a circumference of the tubular wall and passing through the tubular wall. The lumen is configured such that fluid flows through the lumen of the heat transfer apparatus. Each pipe element of the multiple pipe elements includes an interior portion located within the lumen of the tubular wall and configured to absorb heat from the fluid that flows through the lumen and includes an exterior portion located exterior to the tubular wall and configured to release at least a portion of the heat absorbed at the interior portion to an ambient environment.

A crude oil refinery pre-heat train (PHT) includes a crude oil stream pipeline system that extends through the PHT and is configured to carry a stream of crude oil from an inlet of the PHT to a furnace of the PHT; heat exchangers positioned in the crude oil stream pipeline system; and a control system. The heat exchangers include a first set of heat exchangers positioned in the crude oil stream pipeline system between the inlet of the PHT and one or more de-salters of the PHT; a second set of heat exchangers positioned in the crude oil stream pipeline system between the one or more de-salters of the PHT and one or more pre-flash drums of the PHT; and a third set of heat exchangers positioned between the one or more pre-flash drums of the PHT and the furnace of the PHT.

A system includes a waste heat recovery heat exchanger configured to heat a heating fluid stream by exchange with a heat source in a crude oil associated gas processing plant; and an Organic Rankine cycle energy conversion system. The Organic Rankine cycle energy conversion system includes a heat exchanger configured to heat a first portion of a working fluid by exchange with the heated heating fluid stream; and a cooling subsystem including one or more cooling elements each configured to cool one or more of a process stream from the crude oil associated gas processing plant and a cooling water stream for ambient air cooling by exchange with a second portion of the working fluid. The Organic Rankine cycle energy conversion system includes an ejector configured to receive the second portion of the working fluid from the cooling subsystem and a third portion of the working fluid; a turbine and a generator configured to generate power by expansion of a fourth portion of the working fluid; and a cooling element configured to cool a stream of working fluid including an output stream of working fluid from the ejector and the expanded fourth portion of the working fluid from the turbine and generator.