Abstract: A distributed virtual machine architecture includes a virtual machine client (16) and a virtual machine server (32). The virtual machine client provides a platform upon which an application may be run on a host device (12). The virtual machine server may appear anywhere within the network to which the host of the virtual machine client is connected (14). When the application request a class, the virtual machine client determines such class exists on the local host (12) or a client proxy exist for the class. If neither exists, the virtual machine client connects to the virtual machine server to send a request for the class. If a proxy does exist, a proxy is returned to the virtual machine client. However, if a proxy does not exist, the virtual machine server dynamically generates the proxy (34) to be returned to the virtual machine client.

Abstract: An energy-efficient extractive distillation process for producing anhydrous ethanol from aqueous/ethanol feeds containing any range of ethanol employs an extractive distillation column (EDC) that operates under no or greatly reduced liquid reflux conditions. The EDC can be incorporated into an integrated process for producing anhydrous ethanol used for gasoline blending from fermentation broth. By using a high-boiling extractive distillation solvent, no solvent is entrained by the vapor phase to the EDC overhead stream, even under no liquid reflux conditions. The energy requirement and severity of the EDC can be further improved by limiting ethanol recovery in the EDC. In this partial ethanol recovery design, ethanol which remains in the aqueous stream from the EDC is recovered in a post-distillation column or the aqueous stream is recycled to a front-end pre-distillation column where the ethanol is readily recovered since the VLE curve for ethanol/water is extremely favorable for distillation.

Abstract: A solar power ornamental device that features spinning, expandable decorative element displays a constantly changing array of colors when light is reflected from the rotating decorative element. The ornamental display includes: (a) a mounting assembly that includes a base that is rotatable about an axis; (b) means for rotating the rotatable base; and (c) an expandable decorative element that is secured to the rotatable base whereby the expandable decorative element is radially expandable when subjected to centrifugal forces that develop when the rotatable base is rotated.

Abstract: An energy efficient, high throughput process for aromatics recovery can be readily implemented by revamping existing sulfolane solvent extraction facilities, or constructing new ones, so as to incorporate unique process operations involving liquid-liquid extraction and extractive distillation. Current industrial sulfolane solvent based liquid-liquid extraction processes employ a liquid-liquid extraction column, an extractive stripping column, a solvent recovery column, a raffinate wash column, and a solvent regenerator. The improved process for aromatic hydrocarbon recovery from a mixture of aromatic and non-aromatic hydrocarbons requires transformation of the extractive stripping column into a modified extractive distillation column. The revamping incorporates the unique advantages of liquid-liquid extraction and extractive distillation into one process to significantly reduce energy consumption and increase process throughput.

Abstract: Extractive distillation processes whereby water-soluble extractive distillation (ED) solvents are regenerated and recovered employ improved operations of the extractive distillation column (EDC) so that polar hydrocarbons are recovered and purified from mixtures containing polar and less polar hydrocarbons and measurable amounts of hydrocarbons that are heavier than intended feedstock and/or polymers that are generated in the ED process. The improved process can effectively remove and recover the heavy hydrocarbons and/or remove polymer contaminants from the solvent in a closed solvent circulating loop through mild operating conditions with no additional process energy being expended. With the improved process, the overhead reflux of the EDC may be eliminated to further reduce energy consumption and to enhance the loading and performance within the upper portion of the EDC, especially when two liquid phases exists therein.