Abstract:
A deactivated sorbent composition is reactivated by contacting the deactivated sorbent with a reducing stream under activation conditions sufficient to reduce the amount of sulfates associated with the sorbent composition.
Abstract:
A process for hydrotreating acidic compounds of an acidic petroleum oil is disclosed. The process includes contacting the acidic petroleum oil with a hydrogen donor solvent to thereby produce a treated petroleum oil. The process can further include contacting a fraction or a full-boiling range portion of the treated petroleum oil with a hydrogenation catalyst in the presence of hydrogen and under process conditions sufficient to hydrogenate at least a portion of the hydrocarbons of the fraction or full-boiling range portion; and utilizing at least a portion of the hydrogenated fraction or full-boiling range portion as the hydrogen donor solvent.
Abstract:
An apparatus and method for enhancing oil recovery through improved injection well performance is provided, wherein a fluid is injected into the well bore (12) at a pressure Pi, and a downhole fluid-actuated engine and pump assembly (10) is employed as a booster in order to generate a high pressure output at pressure Ph greater than Pi and a low pressure output at pressure P1 lower than Pi; the respective output streams are directed to lower (16) and higher (18) permeability geological strata adjacent the well bore in order to increase production.
Abstract:
A substantially water-free hydrocarbon feed is charged to a multiple-reactor reformer system being operated under reforming conditions and comprising at least two reformer reactors serially connected in fluid-flow communication and each containing a reformer catalyst; and, simultaneously with the charging step, a chloriding agent is introduced, without simultaneously introducing water, immediately upstream from the inlets of all the reformer reactors in an amount and for a period of time that are effective to inhibit the deactivation of the reformer catalyst.
Abstract:
This invention concerns a corrosion-inhibitor nominally comprised of a phenolic compound and a hydroxide-bearing compound capable of imparting a pH of 9 to water, the inclusion thereof in aerated water-based fluids and foams, and the use of these fluids in wellbore applications; particularly applications conducted at elevated temperatures.
Abstract:
A multi-step process for converting non-aromatic hydrocarbons (preferably a gasoline-type hydrocarbon mixture) to lower olefins (preferably ethylene and propylene) and aromatic hydrocarbons (preferably benzene, toluene and xylene) comprises, in sequence, a first reaction step, a first separation step, a second reaction step, and a second separation step, wherein the reaction severity of the first reaction step is lower than in the second reaction step so as to maximize olefins and aromatics yields.
Abstract:
A process and apparatus for improving the efficiency of an open-cycle cascaded refrigeration process. Process efficiency is improved by the manner in which the compressed recycle stream (156) is combined with the main process stream (100) in the open refrigeration cycle.
Abstract:
A process for the production of a high purity butene-1 product stream (34), having a low concentration of diolefin, and ether (28) for a mixed hydrocarbon stream (14) having a high concentration of diolefin is disclosed. The process includes the steps of diolefin hydrogenation, etherification, product separation and linear olefin isomerization.
Abstract:
A high strength, thermally resistant, fire retardant, composition of matter is provided comprising (A) about 99.5 to about 75 weight percent of unmodified polymethylpentene where the weight percent of polymethylpentene is based on the total weight of A and B; and (B) about 0.5 to about 25 weight percent of polyphenylene sulfide where the weight percent of polyphenylene sulfide is based on the total weight of A, and B; (C) about 10 to about 67 weight percent of a reinforcer where the weight percent of the reinforcer is based on the total weight of A, B, C, and D; (D) optionally about 5 to about 45 weight percent of a flame retardant where the weight percent of the flame retardant is based on the total weight A, B, C and D. The composition has utility in the molding art.
Abstract:
A composite cellular sandwich structure (10). The structure (10) comprises a cellular core (12) with at least one thermoplastic composite layer (20, 22) disposed adjacent to a side of the core and heat bonded thereto. To facilitate bonding, a film of thermoplastic (24, 26) may be disposed between the composite layer (20, 22) and the core (12). Preferably, the thermoplastic material in both the composite layer (20, 22) and the film (24, 26) is a polyarylene sulfide, such as polyphenylene sulfide. No secondary adhesive is required in the bonding process. A method of substantially continuously producing the composite cellular sandwich structure (10) is also disclosed.