Abstract:
A method of liquefying a contaminated hydrocarbon-containing gas stream includes cooling the stream in a first heat exchanger and cooling the cooled stream in an expander to obtain a partially liquefied stream. The method further includes separating the partially liquefied stream in a separator to obtain a gaseous stream and a liquid stream. The liquid stream is expanded to obtain a multiphase stream containing at least a vapour phase, a liquid phase and a solid phase. The multiphase stream is separated in a separator to obtain a gaseous stream and a slurry stream. The slurry stream is separated in a solid/liquid separator to obtain a liquid hydrocarbon stream and a concentrated slurry stream. The gaseous stream is passed through the first heat exchanger to obtain a heated gaseous stream. The heated gaseous stream is compressed and combined with the contaminated hydrocarbon-containing gas stream.
Abstract:
Performing an enhanced oil recovery (EOR) injection operation in an oilfield having a reservoir may include obtaining a EOR scenarios that each include a chemical agent, obtaining a three-dimensional (3D) porous solid image of a core sample, and generating a 3D pore scale model from the 3D porous solid image. The core sample is a 3D porous medium representing a portion of the oilfield. The 3D pore scale model describes a physical pore structure in the 3D porous medium. Simulations are performed using the EOR scenarios to obtain simulation results by, for each EOR scenario, simulating, on the first 3D pore scale model, the EOR injection operation using the chemical agent specified by the EOR scenario to generate a simulation result. A comparative analysis of the simulation results is performed to obtain a selected chemical agent. Further, an operation is performed using the selected chemical agent.
Abstract:
The invention discloses a method for surface enhancement of a pipe. The method includes the steps of: introducing the pipe in a wellbore; introducing cement slurry in the pipe from surface; introducing an expander cone in the pipe on top of the cement slurry, the expander cone having a largest outer diameter which is larger than the initial inner diameter of the pipe; pumping the expander cone towards the downhole end of the pipe, thereby moving the cement slurry to the downhole end and out of the downhole end and into an annulus enclosing the pipe, while and at the same time expanding the inner diameter of the pipe.
Abstract:
The invention provides a process for the catalytic conversion of a saccharide-containing feedstock in a reactor, wherein saccharide-containing feedstock is provided to the reactor as a feed stream through a feed pipe and is contacted with a catalyst system in the reactor and a reaction product is continuously removed from the reactor and wherein the saccharide-containing feedstock is provided through the feed pipe as a pulsed flow and is alternated with a second feed stream comprising a solvent being provided through the same feed pipe.
Abstract:
The invention relates to a process for producing styrene, comprising reacting benzene and acetic acid into methyl phenyl ketone and converting the methyl phenyl ketone into styrene. Preferably, the methyl phenyl ketone is converted into styrene by converting the methyl phenyl ketone into methyl phenyl carbinol and converting the methyl phenyl carbinol into styrene.
Abstract:
The present invention provides a lubricating composition comprising: (i) a base oil; (ii) a non-silicone anti-foam agent; and (iii) one or more performance additives; wherein the composition has a kinematic viscosity at 100° C. (according to ASTM D445) of 16.3 mm2/s or less, a low temperature cranking viscosity of at most 6600 cP at −30° C. (ASTM D5293) and a NOACK volatility of at most 11% according to CEC-L-40-93.
Abstract:
Embodiments of the present invention provide for production and recovery of ethanol or other volatile organic compounds, such as acetic acid, from solid biomass material. One embodiment comprises introducing a biomass material to a compartment of a solventless recovery system, wherein the biomass material contains one or more volatile organic compounds; contacting the biomass material with a superheated vapor stream in the compartment to vaporize at least a portion of an initial liquid content in the biomass material, said superheated vapor stream comprising at least one volatile organic compound; separating a vapor component and a solid component from the heated biomass material, said vapor component comprising at least one volatile organic compound; and retaining at least a portion of the vapor component for use as part of the superheated vapor stream.
Abstract:
Systems and methods for heaters used in treating a subsurface formation are described herein. Certain embodiments relate to systems for insulated conductors used in heater elements. More particularly, fittings for splicing together insulated conductors and/or insulated conductors to other conductors are described.
Abstract:
The present invention provides an internal olefin sulfonate composition, comprising water and an internal olefin sulfonate mixture having an average carbon number of at least 20, wherein the internal olefin sulfonate mixture comprises hydroxy sulfonates and alkene sulfonates in a weight ratio of hydroxy sulfonates to alkene sulfonates of at least 3.25. The invention further provides a method of treating a crude oil containing formation.
Abstract:
The invention relates to a process for producing acrylic acid, comprising: converting a C3-oxygenate into a C3-hydroxyacid, wherein said C3-oxygenate is selected from the group consisting of 1-propanol, 2-propanol, propanal, acetone, monopropylene glycol, monohydroxyacetone, 2-hydroxypropanal, dihydroxyacetone and 2,3-dihydroxypropanal; and converting the C3-hydroxyacid into acrylic acid.