Dear members,
I need to design a gas processing plant capacity for 0.5 mmscmd and composition are Methane-92.12,Ethane-2.07, H2S-0.0, CO2-3.36, N2-0.86
As per my calculation, 41 m3 (C2-20, C3-12, C4-9) of NGL can be produced if NGL extraction unit is installed. I presume, installing dehydration using molecular sieve to be carried out only during NGL extraction economically feasible, otherwise TEG is enough to maintain pipeline quality.
Water to be removed is around 70 lb/mmscf.
Wellhead pressure: 45 Kg/cm2 and Pipeline pressure: 75 ksc (Planning to install compressor at the upstream of Dehydration process)
The following are my queries:
1. Whether my assumption regarding Considering techno-commercial feasibility, Is it economical to design NGL extraction process for 25 MT/D?
2. Can we use molecular sieves compare to amine unit, which suffice the need of dehydration & CO2 removal or can I leave CO2 in the pipeline?
3. If possible, I need CAPEX and OPEX of different gas treatment process to compare economics of process.
Thanks
Edited by Nirmal els, 24 August 2018 - 04:43 AM.