摘要:
A thermostatic expansion valve assembly is provided for an air conditioning system. A thermostatic expansion valve includes a valve body having an evaporator inlet port, an evaporator outlet port, a suction line port, and a liquid inlet port. The thermostatic expansion valve controls a flow of refrigerant from the liquid line port to the evaporator inlet port. A liquid line conduit is coupled to the liquid inlet port. The liquid line conduit has at least a segment elevated above the liquid inlet port. The vapor within the liquid inlet conduit accumulates at an uppermost portion of the segment prior to a compressor startup. A substantial amount refrigerant liquid is maintained between the uppermost portion of the segment and the liquid inlet port prior to the compressor startup.
摘要:
A process for regenerating a used acidic ionic liquid catalyst comprising contacting the used ionic liquid catalyst with at least one ‘regeneration’ metal in a regeneration zone in the presence of added hydrogen under regeneration conditions for a time sufficient to increase the activity of the ionic liquid catalyst is described. In one embodiment, regeneration is conducted in the presence of a hydrocarbon solvent.
摘要:
A process for alkylating an aromatic compound comprising reacting at least one aromatic compound with a mixture of olefins selected from olefins having from about 8 to about 100 carbon atoms, in the presence of an acidic ionic liquid catalyst, wherein the resulting product comprises at least about 50 weight percent of a 1, 2, 4 tri-substituted aromatic compound or a 1, 2, 3 tri-substituted aromatic compound or mixtures thereof.
摘要:
A process for regenerating a used acidic ionic liquid catalyst comprising contacting the used ionic liquid catalyst with an isoparaffin-containing stream and Broensted acid in a reaction zone under alkylation conditions for a time sufficient to increase the activity of the ionic liquid catalyst is disclosed. An embodiment of a process for regenerating a used acidic ionic liquid catalyst comprising the steps of contacting the used ionic liquid catalyst with an isoparaffin-containing stream and Broensted acid in a reaction zone under alkylation conditions for a time sufficient to increase the activity of the ionic liquid catalyst; removing reaction product from the reaction zone; mixing the removed reaction product with a hydrocarbon solvent; allowing the mixture to separate into two phases; and recovering at least a portion of the heavier phase which contains a regenerated ionic liquid catalyst having greater activity than the used ionic liquid catalyst is also disclosed.
摘要:
A process for regenerating a used ionic liquid catalyst comprising a cationic component and an anionic component, which catalyst has been deactivated by conjunct polymers complexed with the anionic component comprising the steps of adding a reagent which is capable of replacing the complexed conjunct polymer with the cationic component of the catalyst, said reagent being added in an amount sufficient to react with a suitable amount of both free and complexed anionic components in the used catalyst and removing the replaced conjunct polymer to produce a regenerated ionic liquid catalyst is disclosed.
摘要:
The present disclosure is directed to diagnostic agents. More specifically, the disclosure is directed to compounds, diagnostic agents, compositions, and kits for detecting and/or imaging and/or monitoring a pathological disorder associated with coronary plaque, carotid plaque, aortic plaque, plaque of the arterial vessel, aneurism, vasculitis, and other diseases of the arterial wall. In addition, the disclosure is directed to methods of detecting and/or imaging and/or monitoring changes in the arterial wall, including expansive and constrictive remodeling, total vessel wall area, internal lumen size, and exterior artery perimeter.
摘要:
The present invention is directed to a compound comprising a thiol derivatized targeting moiety. The targeting moiety binds to a receptor which his upregulated during angiogenesis.
摘要:
System, method and apparatus for carrying out isometric exercises for therapeutic purposes. As employed in a therapeutic mode the apparatus may only be programmed within mandated therapeutic parameter limitations. During therapeutic trials, the user is visually and aurally cued throughout the test sequence and the therapeutic data evolved during the regimen is recorded and recoverable from archival memory. Particular target force modes can be selected to allow stimulation of nitric oxide release, and modulation of serum lipid composition.