Multiobjective Optimization of a Benfield HiPure Gas Sweetening Unit

Table 2

Comparison of hot carbonate section with plant data.

Components	Sour gas feed	Carbonate absorber Overhead product		Amine absorberv Overhead product
		Plant data	Simulation	Plant data	Simulation
CO2 (ppmv)	47000.0	574.1	570.0	19.00	25.00
H2S (ppmv)	21000.0	707.4	683.0	0.40	0.40
Nitrogen (v/v%)	2.1	2.1	2.3	2.30	2.31
Methane (v/v%)	81.4	85.4	86.2	85.90	87.11
Ethane (v/v%)	5.6	6.9	5.9	6.90	6.00
Propane (v/v%)	2.7	3.1	2.9	3.10	2.90
i-Butane (v/v%)	0.4	0.6	0.4	0.60	0.39
n-Butane (v/v%)	0.6	0.4	0.6	1.00	0.64
i-Pentane (v/v%)	0.1	0.2	0.1	0.20	0.20
n-Pentane (v/v%)	0.3	0.3	0.3	0.30	0.30