Vilter Manufacturing LLC, an Emerson Climate Technologies business segment, has introduced its next generation vapor recovery units (VRUs). The new VRUs feature hermetically sealed Copeland Scroll™ compressors, horizontal lube oil stabilizers, and the ROC827 controller.
Vapor recovery came to the forefront in August 2013 when the EPA issued a final ruling (40 CFR part 60, subpart 0000) requiring the capture and recovery of at least 95 percent of tank vapors produced in virtually all crude oil and gas production, transmission, and distribution.
Emerson’s new VRU is part of a unique vapor recovery process that employs hermetically sealed scroll compressors requiring very low oil flows. The oil can be “processed” through a multi-stage, heated, horizontal stabilizer that removes all absorbed hydrocarbons from the lubricating oil. The oil is then returned to the compressor as part of the closed loop lubrication system. By employing the oil stabilizer, the system maximizes throughput while protecting the compressor from low oil viscosity caused by dilution, a common and serious problem in previous VRUs.
Copeland Scroll compressors are utilized because they are hermetically sealed, eliminating virtually all volatile organic compound (VOC) emissions. They also require less maintenance because they have no shaft seals, drive belts, drive couplings, lube points or system oil pump.
... to continue reading you must be subscribed
