11results about "Gasoline stabilisation" patented technology

Process for converting an oxygenate feed stream, the process comprising the steps of: conducting the oxygenate feed stream to an oxygenate-to-gasoline reactor, suitably a methanol-to-gasoline reactor (MTG reactor) under the presence of a catalyst active for converting oxygenates in the oxygenate feed stream into a raw gasoline stream com-prising C3-C4 paraffins and C5+ hydrocarbons; and adding an aromatic stream to the MTG reactor.

A process is provided for dechlorinating and separating a mixture of n-butane and alkylate. The process includes separating, in a separation zone, a feed stream comprising light hydrocarbons, propane, isobutane, organic chlorides, n-butane, and alkylate with C5+ hydrocarbons into an overheads stream comprising light hydrocarbons, propane, and isobutane and a bottoms stream comprising organic chlorides, n-butane and alkylate; passing the bottoms stream to a catalytic dechlorination zone configured to convert the organic chlorides to HCl and paraffins under catalytic dechlorination conditions, the catalytic dechlorination zone comprising a vessel and being configured to provide a HCl-rich stream, an n-butane-rich stream, optionally an isopentane-rich stream, and an alkylate-rich stream; removing the HCl-rich stream from the catalytic dechlorination zone as a gaseous overheads product; recovering the n-butane-rich stream from the catalytic dechlorination zone as a liquid side-draw product; optionally recovering the isopentane-rich stream from the catalytic dechlorination zone as a side-draw product; and recovering the alkylate-rich stream from the catalytic dechlorination zone as a liquid bottoms product.

A method for the desulfurization and separation of a catalytic cracking light product includes the steps of: 1) contacting a catalytic cracking light product with a desulfurization adsorbent in an adsorption desulfurization reaction unit in the presence of hydrogen for desulfurization, and optionally carrying out gas-liquid separation on the resulting desulfurization product, to obtain a desulfurized rich gas and a desulfurized crude gasoline, wherein the catalytic cracking light product is an overhead oil-gas fraction from a catalytic cracking fractionator, or a rich gas and a crude gasoline from a catalytic cracking fractionator; and 2) separately sending the desulfurized rich gas and the desulfurized crude gasoline obtained in the step 1) to a catalytic cracking absorption stabilization system for separation, to obtain a desulfurized dry gas, a desulfurized liquefied gas and a desulfurized stabilized gasoline.

Process and plant for producing a gasoline product from an oxygenate feed stream, the process including the provision of a methanol-to-gasoline reactor in a gasoline synthesis loop. The process and plant may include combination of an overhead stream from a de-ethanizer, e.g. a fractionation column, located downstream the cooling and separation of the raw gasoline produced in the methanol-to-gasoline reactor, in the gasoline synthesis loop.

This utility model discloses a high-efficiency crude oil stabilization tower, including a shell, a crude oil inlet and multiple sieve plates on the shell, and a distributor between the crude oil inlet and the sieve plates. The distributor includes a horizontally arranged distribution channel and multiple vertically arranged spray channels. The distribution channel has multiple channels, and the multiple channels correspond to the multiple spray channels. Each of the multiple spray channels has an overflow hole. In this high-efficiency crude oil stabilization tower, crude oil enters the shell through the crude oil inlet and flows into the distribution channel. Subsequently, the crude oil flows into the multiple spray channels through the multiple channels, so that the crude oil is distributed to various positions on the sieve plates through the overflow holes on the multiple spray channels, minimizing the accumulation of high-viscosity crude oil on the uppermost sieve plate.

This utility model discloses a crude oil stabilization and oil-gas separation device, including a base plate. A heat-insulating oil tank is fixedly connected to the upper edge of the base plate. A heating mechanism is provided on the lower surface of the base plate. A motor is installed on the end face of the heat-insulating oil tank. A sealing box is fixedly connected to the inner wall of the heat-insulating oil tank next to the motor. A stirring rod is fixedly installed at the end of the motor output shaft. A main bevel gear is fixedly connected to the outer wall of the end of the stirring rod. A transmission rod is movably installed on the inner wall of the sealing box above the main bevel gear. A main gear is fixedly connected to the upper outer wall of the transmission rod, and a secondary bevel gear is fixedly provided on the lower end face of the transmission rod. A feed pipe is fixedly installed through the upper surface of the heat-insulating oil tank away from the exhaust pipe. This crude oil stabilization and oil-gas separation device facilitates the removal of solid impurities from crude oil before oil-gas separation, thereby reducing the impact of solid impurities on oil-gas separation and improving the practicality of the device.

A hydrocarbon separation system comprising a dividing wall column is disclosed. The dividing wall column having feed section, top section, bottom section, and side draw section. The top section may be configured to fractionate top product components to produce the first hydrocarbon fraction process stream containing C3 hydrocarbons. The side draw section may be configured to fractionate the second hydrocarbon fraction process stream containing C4 hydrocarbons and the bottom section may be configured to fractionate bottom product consisting of C5+ components to produce natural gasoline (NG) product stream. Corresponding process and apparatus for separation of hydrocarbon feed are disclosed.

The application relates to a scale inhibitor and a preparation method thereof, in particular to a high-efficiency environment-friendly scale inhibitor for an ethylene device gasoline stripping tower and a preparation method thereof, which comprises the following components in mass parts: an antioxidant 2-15, an aromatic amine polymerization inhibitor 2-15, a hydroxylamine polymerization inhibitor 4-16, a metal passivator 10-20, a dispersant 10-40 and a solvent 20-50. The scale inhibitor can greatly improve the polymerization inhibition performance, further improve the scale inhibition performance of the scale inhibitor, and ensure good operation of the ethylene device gasoline stripping tower.

A positive pressure heating crude oil stabilization system parameter optimization method and device, the method comprises the following steps: constructing a crude oil stabilization simulation model of a positive pressure heating crude oil stabilization system, at least including a stabilization tower module and a pre-tower heating furnace module; inputting crude oil component parameters into the crude oil stabilization simulation model, and setting the heating furnace outlet temperature as different temperature values T n sequentially; n Carrying out positive pressure heating crude oil stabilization process simulation to obtain the stabilization tower overhead pressure P n and fuel consumption F n corresponding to the highest light hydrocarbon yield Q n at each temperature value T n ; calculating the corresponding profit value A n according to each set of yield and energy consumption data, each set of yield and energy consumption data comprising Q n and F n ; obtaining the maximum profit value from N profit values A n , and taking the T n and P n corresponding to the maximum profit value as the optimal heating furnace outlet temperature and the optimal stabilization tower overhead pressure respectively; and based on the crude oil stabilization simulation model, analyzing the light hydrocarbon yield and fuel energy consumption to ensure the maximum economic benefit while saving energy and reducing costs.

Assemblies and methods to enhance a refining process associated with a refining operation may include supplying a material to first processing units associated with the refining operation. The assemblies and methods also may include conditioning unit material samples, and analyzing the samples via one or more spectroscopic analyzers. The assemblies and methods further may include prescriptively controlling, via one or more refinery process controllers, based at least in part on the unit material properties, the refinery processing assembly, so that the prescriptively controlling results in causing the refining process to produce intermediate materials, the unit materials, and / or the downstream materials having properties within selected ranges of target properties, thereby to cause the refining process to achieve material outputs that more accurately and responsively converge on one or more of the target properties.