Dry screw compressors for lime kiln and styrene gas have been operating reliably for decades Reference report What are the advantages of AERZEN compressor packages in the oil and gas sector? In order to give potential new customers from this sector an impression of the technology, AERZEN organised a tour to various reference plants in the EU. For process engineering reasons, the discharge temperature of these systems is kept constant with continuous water injection. Among the European operators visited were leading manufacturers of chemical raw materials such as soda, which is obtained from polystyrene (EPS) and synthetic rubber (SBR) using the Solvay process. The VRa 736L for compression of styrene monomer offgas has been in continuous operation since 1998.When planning a pilot plant, it is primarily a matter of building trust and convincing oneself of the AERZEN performance promise in live operations. The compression of gases contaminated and enriched with CO2 using dry screw compressors has been one of AERZEN‘s key applications since the 1970s and still represents a core competence in Process Gas Business today.The seven systems presented during the trip, which lasted several days, have been running for an average of 19 years to the complete satisfaction of the operators and maintenance staff. The response of the operators to the short-dated visits, which were undertaken before Christmas 2018, was accordingly open and constructive. Up to 35,000 operating hours, i.e. four-year maintenance intervals, are standard for lime kiln gas compressors, while styrene gas compression operations are generally shut down every two years as part of preventive cleaning and overhaul work on the entire plant.A special highlight was the lime kiln gas compressor VKO 725S, built in 1976, which has already moved from a Czech coking plant and is still characterised by reliability and performance today. An impressive example of engineering know-how, proven technology and quality from AERZEN.VRa 736L for compression of styrene monomer offgas. VKO 725S for the compression of lime kiln gas with turbine drive - year of construction 1976. ne of several VRa 736SDs for the compression of lime kiln gas with turbine drive - year of construction 2008.
AERZEN divests its Gas Meter division Aerzener Maschinenfabrik GmbH successfully sold its product division rotary piston gas meters to RMA Rheinau GmbH at the end of 2018.The AERZEN rotary piston gas meter has been a product rich in tradition at Aerzener Maschinenfabrik since 1930. Due to their design, however, demand and sales of measuring instruments were concentrated primarily on the German market. On the basis of the company’s international growth strategy, which mainly focuses on compressor technology and application specialisation, the AERZEN gas meter no longer fits in with the future target orientation. Against this background, the management decided to sell this product division to another company in the industry with good know-how.“For AERZEN it was very important to find a buyer who would offer the product range to our long-standing customers with the usual high quality,” says the CEO, Klaus-Hasso Heller. “We are very pleased that we have now found a reliable partner in RMA, based in Rheinau, who will not only continue the AERZEN technology, but will also develop it further in this way,” adds Klaus-Hasso Heller.
