The present invention relates to a new and integrated process involving the utilization of a primary adsorption bed containing a regenerable, physical adsorbent and an auxiliary sorption bed containing a chemisorbent for the removal of sulfur compounds from a fluid stream, which process provides for higher yields, higher purity and lower costs. A system for removing sulfur compounds in accordance with the above process is also disclosed.

Integrated process for the removal of sulfur compounds from fluid streams

A bicycle rim made of composite material has structural fibers incorporated in a polymeric material. The rim has at least one circumferential reinforcement element based on unidirectional structural fibers extending at a respective intersection of walls of the rim, the direction of the structural fiber being circumferential.

Composite bicycle rim and method for producing it

A process for converting a reactant hydrocarbon wherein a process charge stream contains such reactant in admixture with a component which interferes with the conversion reaction. The process comprises adsorbing the interfering component from the process charge mixture at a relatively low temperature; reacting the reactant hydrocarbon at suitable reaction conditions; and subsequently desorbing the interfering component into the reaction effluent at an elevated temperature. Solid adsorbents selective for the interfering component are employed in this process and no extraneous streams are employed to aid in desorbing such interfering component from the selective adsorbent.

Adsorption-desorption process for removing an unwanted component from a reaction charge mixture

The invention relates to a device and method for testing molecular diffusion coefficients in a multi-component oil-gas system under high temperature and high pressure. The device consists of an inlet pump 1, an outlet pump 2, an intermediate container, a PVT (pressure-volume-temperature) cylinder 6, an oil-gas separator 7, a gas volume flow meter 8, a liquid phase density analyzer 10 and a chromatographic analyzer 9, wherein, one end of the intermediate container is connected with the inlet pump 1, and the other end of the intermediate container is connected with the PVT cylinder 6; the PVT cylinder is connected with the oil-gas separator 7; the separator is connected with the gas volume flow meter 8 and the liquid phase density analyzer 10; the gas volume flow meter and the liquid phase density analyzer are respectively connected with the chromatographic analyzer 9; and the other end of the PVT cylinder is connected with the outlet pump 2. The device has the advantages of reasonable principle and simple structure, and is convenient in operation; and by utilizing the method, the molecular diffusion coefficients of each component in a multi-component injected gas and actual crude oil system in gas phase and oil phase under the conditions of different reservoir temperature and pressure can be determined, thereby providing reasonable basic data for quantitative evaluation of influence of molecular diffusion effect on the enhancement of the recovery ratio by means of gas injection.

Device and method for testing molecular diffusion coefficients in multi-component oil-gas system under high temperature and high pressure

A system for monitoring foaming or carry over, at a well site, of a formation fluid by taking a sample of the gas exiting from a high-pressure separator and either measuring the density of the sample or measuring the amount of oil particles present. A correlation of the density or optical density with a level of foaming is made and a signal is transmitted to a device to control the supply of at least one additive to control the foaming.

Foam monitoring and control system

Measuring the foaming characteristics of crude oil comprises saturating the crude oil with a gas inert to the crude oil under high pressure and passing the gas-saturated oil into a flash separator. The amount of foam formed is measured with respect to the amount of gas withdrawn from the flash separator and the amount of oil contained therein. The apparatus comprises a gas-oil saturation vessel, a transparent elongated horizontal flash separator, an oil inlet line in one end of the flash separator, an oil outlet line in the bottom portion of the flash separator at the end opposite the oil inlet, a gas outlet line in the upper portion of the flash separator between the oil inlet and oil outlet line, a pressure equalization line in communication with the upper portion of the flash separator, the gas outlet line, and the oil outlet line, a weir for maintaining a layer of oil in the lower portion of the flash separator at a controlled level, a transverse baffle extending from the upper portion of the flash separator to a point below the height of the weir, located near the weir and upstream thereof, means for measuring the oil flow rate from the flash separator, means for measuring the gas flow rate from the flash separator, means for controlling the back pressure within the flash separator, means for controlling the temperature in the gas-oil saturator and the flash separator, and means for measuring the foam volume in the flash separator.

Method and apparatus for determining the foaming characteristics of crude oil

THE SPECIFICATION DISCLOSES A PROCESS AND APPARATUS FOR RECOVERING CONDENSABLE, HEAVIER HYDROCARBON COMPONENTS, E.G., PROPANE, BUTANE, ETC., FROM NATURAL GAS STREAMS WHEREIN AT LEAST ONE OF SAID GAS STREAMS ORIGINATES FROM A SOURCE OF GAS RICH IN SAID HYDROCARBON COMPONENTS AND AT LEAST ONE OF THE OTHER GAS STREAMS ORIGINATES FROM A SOURCE OF GAS LEAN IN SAID HYDROCARBON COMPONENTS. THE RICH GAS IS STRIPPED BY OIL ABSORPTION, REFRIGERATION, OR OTHER WELL-KNOWN RICH GAS RECOVERY MEANS. THE LEAN GAS IS STRIPPED BY SOLID ADSORPTION MEANS WHICH UTILIZES AN OPEN-CYCLE REGENERATION SYSTEM WHICH IN TURN IS SUPPLIED WITH A PORTION OF SAID RICH GAS TO ACT AS THE REGENERATIVE GAS. THE REGENERATIVE GAS IS FLOWED THROUGH A SATURATED ADSORBENT BED WHERE IT DESORBS PREVIOUSLY ADSORBED HEAVIER HYDROCARBONS AND CARRIES SAID HYDROCARBONS TO A SEPARATOR WHERE SAID HEAVIER HYDROCARBONS ARE CONDENSED. THE GASEOUS PHASE OF THE REGENERATIVE GAS PLUS DESORBED HEAVIER COMPONENTS ARE RETURNED FROM THE SEPARATOR TO THE RICH GAS STREAM AND ARE STRIPPED THEREWITH IN SAID RICH GAS RECOVERY MEANS.

Process and apparatus for recovering condensable components from fluid streams

A method for determining the foaming characteristics of a crude oil stream at the wellhead comprising introducing the production crude oil stream from the wellhead into an elongated, horizontal separator under reduced pressure at a controlled flow rate, withdrawing evolved gas from the upper portion of the separator and measuring the flow rate thereof, withdrawing oil from the lower portion of the separator and measuring the flow rate thereof, controlling the pressure on the separator at a lower pressure than the wellhead pressure, controlling the liquid level of the oil in the separator, measuring the volume of oil in the separator, and measuring the volume of foam in the separator The apparatus comprises an elongated horizontal separator, a crude oil inlet into one end of the separator, means for supplying a crude oil stream from the wellhead to the crude oil inlet in the separator at a controlled flow rate, means for controlling the pressure in the separator at a pressure lower than the wellhead pressure, means for withdrawing gas from the upper portion of the separator and measuring the flow rate thereof, means for withdrawing crude oil from the lower portion of the separator and measuring the flow rate thereof, means for controlling the liquid level crude oil in the separator, means for measuring the volume of foam formed in the separator, and means for measuring the volume of crude oil in the separator

Curtis L Humphries

Papers

Method and apparatus for determining the foaming characteristics of crude oil

Process and apparatus for recovering condensable components from fluid streams

Method and apparatus for determining the foaming characteristics of a crude oil stream at the wellhead

Hydrocarbon adsorption system

Hydrocarbon adsorption apparatus and process