What refiux ratio was used in a C2 splitter to obtain a 99.9mol percent ethylene product using a 4.63-m-diameter column provided with 94 sieve trays? The partially vaporized (27 mol percent) feed enters the column at 26C and 2000kPa with the following hourly flow rate: Also, determine the appropriate feed location in the column What refiux ratio was used in a C2 splitter to obtain a 99.9mol percent ethylene product using a 4.63-m-diameter column provided with 94 sieve trays? The partially vaporized (27 mol percent) feed enters the column at 26C and 2000kPa with the following hourly flow rate: Also, determine the appropriate feed location in the column