1 research outputs found
Tapping Singular Middle Eastern Ultrasour Gas Resources Combining Membrane and Absorption Systems: Potential for Energy Intensity Reduction
A process
design and techno-economic analysis is proposed for sweetening
ultrasour natural gas containing over 20% H<sub>2</sub>S and 30% total
acid gases using a hybrid scheme approach. This type of gas resource
is unique and can only be found in the Middle East. The hybrid scheme
combines membrane and amine gas absorption systems. The study was
made on the basis of process simulations and sensitivity analyses
to find the most suitable process design and operating parameters
using the software ProMax. A Pebax-based membrane module(s) is used
as the primary sweetening method, whereas gas absorption is applied
to meet the final gas product specifications. The hybrid scheme is
benchmarked against the current stand-alone absorption system used
to process this rare type of gas. It was found that the gas sweetening
energy intensity can be substantially reduced using the hybrid scheme
and be more cost-effective than conventional stand-alone absorption
units for treating Middle Eastern ultrasour natural gas