UOP will provide Crosstex with UOP Russell deethanizer and depropanizer
fractionators that are capable of handling a 100,000 barrel-per-day mixed natural gas liquids stream for the extraction of ethane and propane.
To test the methodology proposed in previous section, a depropanizer
process (Lee, 1993) is used as a case study where the mole fractions of propane in distillate and isobutane in bottom product are controlled by simultaneously adjusting the reflux ratio (RR) and boil-up rate (Q) in the face of sinusoidal disturbances in feed composition.
The effect of neglecting the vapour phase in the simulation of a depropanizer
operating at a pressure of 15 bar is illustrated in Figure 7 where the propane composition in the bottoms is plotted as function of the time after an increase in the reflux ratio.
The new plant is operating at its capacity of 30 million cubic feet per day (MMcf/d) and includes a depropanizer
to extract propane from the gas stream that is sold into the regional market.
267 percent interest in the Superior Storage Facility and the Depropanizer
- Various percent interests in Sarnia fractionation and storage facilities - 49 percent interest in Marysville Underground Storage Terminal - 100 percent interest in Kinetic Resources, a marketer of natural gas liquids
In addition, MarkWest is constructing a 30 MMcf/d cryogenic processing plant, which includes a depropanizer
to extract propane from the gas stream, which is expected to commence operations in the first quarter of 2009.