Abstract:
An amine solvent solution that is useful in absorbing acid gases from a liquid or gas feed stream may have an amine additive added thereto. Additionally or alternatively, the amine additive may be added to a liquid or gas feed stream. The addition of the amine additive decreases the presence of amine-derived contaminants and/or degradation of amine in the amine solvent solution. As such, the amine solvent solution is available for effective reuse in treating the liquid or gas feed stream and there may be a decrease in the corrosion within an amine treating system.
Abstract:
Systems and methods for removing impurities from a feed fluid in a single vessel. A method generally includes, in single vessel, contacting a feed fluid passing through the vessel with a copper-based material for removing oxygen from the feed fluid; and contacting the feed fluid passing through the vessel with an adsorbent for removing at least one of water, carbon dioxide, and oxygenated hydrocarbons from the feed fluid.
Abstract:
Provided are multiple correlations for relationships between MI value for a brightstock extract and the distillation cut point temperature used for separation of the vacuum resid that is used to form the brightstock extract. Based on these correlations, a BSE having a desired MI value can be formed based on an adjustment of the distillation cut point temperature. A first correlation establishes a relationship between a fractional weight boiling temperature for a vacuum resid fraction and a distillation cut point temperature for separating the vacuum resid fraction from at least one distillate fraction in a feedstock. A second correlation establishes a relationship between a fractional weight boiling temperature for a brightstock extract derived from the vacuum resid fraction, and the fractional weight boiling temperature for the vacuum resid fraction. A third correlation has been established between the fractional weight boiling temperature for the brightstock extract and a mutagenicity index value.
Abstract:
The present invention relates to a process for producing liquid transportation fuel (15) based on plastic waste materials (10), comprising the step of: providing (S101) plastic waste materials (10) in molten form; de-polymerizing (S103) molten plastic waste materials (10) into a reaction chamber using a limestone catalyst (20) at a temperature ranging 420° C. to 450° C. under normal atmospheric pressure condition of 1 Bar; and introducing (S106) gaseous de-polymerized products (25) to a distillation unit thereby allows the gaseous de-polymerized products (25) to be fractionally distilled and condensed into liquid transportation fuels (15).
Abstract:
The present invention relates to a process for the conversion of an alcohol mixture (A) comprising about 20 w % to 100% isobutanol to make essentially propylene, comprising: a) introducing in a reactor (A) a stream comprising the mixture (A), optionally water, optionally an inert component, b) contacting said stream with a catalyst (A1) at a temperature above 450° C. in said reactor (A) at conditions effective to dehydrate at least a part of the isobutanol and other alcohols, if any, and make a cracking, c) recovering from said reactor (A) an effluent comprising: ethylene, propylene, water, optionally unconverted alcohols of the mixture (A), various hydrocarbons, and the optional inert component of step a), d) fractionating said effluent of step c) to produce at least an ethylene stream, a propylene stream, a fraction consisting essentially of hydrocarbons having 4 carbon atoms or more, water and the optional inert component of step a), optionally recycling ethylene in whole or in part at the inlet of the reactor (A), optionally recycling the fraction consisting essentially of hydrocarbons having 4 carbon atoms or more at the inlet of the reactor (A).
Abstract:
The invention relates to upgraded pyrolysis products, processes for upgrading products obtained from hydrocarbon pyrolysis, equipment useful for such processes, and the use of upgraded pyrolysis products.
Abstract:
The present invention relates to a method of producing alkyl esters and glycerin from a crude or semi-refined vegetable oil and an aliphatic monoalcohol, comprising a deep pretreatment purification stage to eliminate the species based on phosphorus, calcium, magnesium, zinc or iron, insoluble under the temperature conditions of the heterogeneous catalytic reactor.
Abstract:
Processes and systems for stabilization and subsequent hydrogenation of an immiscible olefin are described. In certain embodiments, the hydrogenation is conducted in a fixed bed reactor in presence of a hydrogenation catalyst.
Abstract:
A process is provided that is directed to a steam pyrolysis zone integrated with a hydroprocessing zone including residual bypass to permit direct processing of crude oil feedstocks to produce petrochemicals including olefins and aromatics. The integrated hydrotreating and steam pyrolysis process for the direct processing of a crude oil to produce olefinic and aromatic petrochemicals comprises separating the crude oil into light components and heavy components; charging the light components and hydrogen to a hydroprocessing zone operating under conditions effective to produce a hydroprocessed effluent reduced having a reduced content of contaminants, an increased paraffinicity, reduced Bureau of Mines Correlation Index, and an increased American Petroleum Institute gravity; thermally cracking the hydroprocessed effluent in the presence of steam to produce a mixed product stream; separating the mixed product stream; purifying hydrogen recovered from the mixed product stream and recycling it to the hydroprocessing zone; recovering olefins and aromatics from the separated mixed product stream; and recovering a combined stream of pyrolysis fuel oil from the separated mixed product stream and heavy components from step (a) as a fuel oil blend.
Abstract:
The present invention relates to a process for the conversion of an alcohols mixture (A) comprising about 20 w % to 100% isobutanol to make essentially propylene, comprising: a) introducing in a reactor (A) (also called the first reaction zone or low temperature reaction zone) a stream comprising the mixture (A), optionally water, optionally an inert component, b) contacting said stream with a catalyst (A1) in said reactor (A) at conditions effective to dehydrate: at least a portion of the isobutanol to essentially butenes, at least a portion of other alcohols, if any, to essentially olefins other than butene having the same carbon number as the alcohol precursor, c) recovering from said reactor (A) an effluent comprising: butenes, optionally olefins other than butene, water, optionally unconverted alcohols of the mixture (A), various hydrocarbons, and the optional inert component of step a), d) fractionating said effluent of step c) to remove a portion or all the water, unconverted alcohols, optionally the inert component, and optionally the whole or a part of the various hydrocarbons to get a stream (D) comprising essentially olefins and optionally the inert component, e) introducing at least a part of said stream (D) in an OCP reactor (also called the second reaction zone or high temperature zone), f) contacting said stream comprising at least a part of (D), optionally in combination with a stream (D1) comprising olefins having 4 carbon atoms or more (C4+ olefins), in said OCP reactor with a catalyst which is selective towards light olefins in the effluent, to produce an effluent with an olefin content of lower molecular weight than that of the feedstock, g) fractionating said effluent of step f) to produce at least an ethylene stream, a propylene stream and a fraction consisting essentially of hydrocarbons having 4 carbon atoms or more, optionally recycling ethylene in whole or in part at the inlet of the OCP reactor of step f), or at the inlet of the reactor (A) or at the inlet of both the OCP reactor of step f) and the reactor (A), optionally recycling the fraction consisting essentially of hydrocarbons having 4 carbon atoms or more at the inlet of the OCP reactor.