Ormat Industries Ltd.

Ormat Process Technologies, Inc.

Ilan Benguigui

Philip B Rettger

Richard L Hood

Philip Rettger

An evaporative solvent recovery section operates on a plurality of liquid product streams including a liquid stream of deasphalted oil and solvent, and a liquid stream of asphaltene and solvent produced by a solvent deasphalting unit. Heat is added to one of the streams for producing a heated liquid product stream that is flashed to produce a stream of vaporized solvent, and a stream of reduced solvent liquid product. The stream of reduced solvent liquid product is further processed, without the addition of a significant amount of heat, to vaporize substantially all of the remaining solvent therein, and heat contained in the stream of vaporized solvent is recovered by expanding the stream in a vapor turbine.

Solvent deasphalting unit and method for using the same

Power is generated in an organic Rankine cycle turbine by expanding a stream of solvent vapor produced by a flash drum in a deasphalting unit to produce a stream of expanded solvent vapor that is combined with a stream of solvent vapor and steam from a stripper of the deasphalting unit. Heat is extracted from the combined stream by an organic fluid that is vaporized and supplied to a Rankine cycle organic vapor turbine that produces power and expanded organic vapor. The solvent is recovered from the cooled, combined stream and re-used in the deasphalting unit. Heat extracted from products of the deasphalting unit vaporizes an organic fluid that is expanded in an organic vapor turbine that generates power.

Growing community of inventors

Tel Aviv, Israel

Ilan Benguigui