Figures 18-84 and 18-85 show plots of suction pressure and suction temperature versus wet gas production. Compressor suction pressures and temperatures vary from 1.5 to 30 psig (0.103 to 0.26 barg) and 80☏ to 135☏ (27☌ to 57.2 ☌) respectively. Increasing the compressor inlet pressure and/or decreasing the temperature reduces the wet gas mass flow rate by changing the amount of condensation that occurs. The main column overhead receiver temperature and pressure determine the amount of wet gas production for a fixed reactor effluent or coke drum composition. The compressor takes suction from the main column and overhead receiver or downstream knocked drum, which operates at 1.5–3.0 psig (0.103–0.206 barg) and discharges to a gas plant absorber/de-ethanizer system operating at 160–240 psig (11.03–16.35 barg) as illustrated in Figure 18-83. Compressor system operating suction and discharge pressures will vary depending on reactor/regenerator, coke drum, gas plant, compressor and/or upstream equipment design and operation. Wet gas compressors increase the system operating pressure so that C 3–C 12 hydrocarbon components can be recovered as liquid product. Īuxiliary burners for waste heat recovery units should be located at a minimum of 15 meters from the gas turbine-driven equipment.The air filters should preferably be located on the prevailing wind side of the building.
#Blowdown fracked gas compressor drivers#
Steam or motor drivers require spacing only for protection against adjacent risks or for operation and maintenance.
Īccess for firefighting should be provided from at least two sides.Īssociated intercoolers, scrubbers, and so on may be located in the compressor area and need not comply with the listed spacing recommendations, but should provide clear access for firefighting and maintenance.Įquipment should not be located over gas compressors.Īll gas compressors should be located at least 15 meters away and, if practical, downwind from fired heaters.Steam- or motor-driven gas compressors that are less than 150 kW should be treated the same as pumps in regard to spacing. Gas compressors over 150 kW and expanders should be separated from other equipment as specified in the applicable spacing tables.
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