Abstract: An improved system for controlling emissions of VOC's by combustion of the VOC's in an internal combustion engine, comprising: a chiller through which the VOC's pass for condensing some of the VOC's into useable liquid products, the remaining VOC's being directed through piping to the engine as the primary fuel therefor; and a refrigeration unit connected to the engine and powered thereby, the refrigeration unit being connected by other piping to the chiller providing refrigerant thereto for the condensing of some of the VOC's passing therethrough.

Abstract: An improved system for controlling emissions of VOC's by combustion of the VOC's in an internal combustion engine, comprising: a chiller through which the VOC's pass for condensing some of the VOC's into useable liquid products, the remaining VOC's being directed through piping to the engine as the primary fuel therefor; and a refrigeration unit connected to the engine and powered thereby, the refrigeration unit being connected by other piping to the chiller providing refrigerant thereto for the condensing of some of the VOC's passing therethrough.

Abstract: An improved air filter assembly for removing particulates and undesirable gases from a stream of contaminated air including a first layer of filter fabric formed by parallel elongated semi-cylindrical surfaces joined at common parallel edges and a cooperating second layer of filter fabric contacting the first layer of fabric at its common parallel edges so as to leave elongated parallel semi-cylindrical voids therebetween. The voids are filled with gas sorbing materials.

Abstract: A simplified, energy efficient process for regulating the composition of recycle solvent obtained by the phase separation of the extract of oilseed extraction with an isopropanol-based solvent. In the extraction of oilseeds with such a solvent, there is obtained, by cooling of the extract, a solvent-rich liquid phase. The invention provides for regulation of the composition of this phase for purposes of solvent recycle by a process which comprises steps for dividing the phase into a first fraction (between about 60 and 95 percent) and a second fraction (between about 5 and 40 percent), directly recycling the first fraction as solvent for further extraction, distilling the second fraction to recover an overhead vapor-consisting essentially of a constant boiling mixture of isopropyl alcohol and water and a bottoms liquid, and condensing and recycling said overhead as solvent for further extraction.