Acid/Sour Gas Management in the Petroleum Industry

Abstract

Acid gas recovered from die amine process contains water, and hence, proper strategic design is essential to address ilie issue of whether an acid gas stream needs dehydration or not The appearance of a free liquid water phase due to changes in temperature and pressure conditions can cause significant operating problems (i.e. compressor damage, corrosion, hydrates formation, etc.). Currently, most injection schemes include dehydration facilities to ensure ilie absence of free

Molecular Dynamics Simulation of Water/CO2-quartz Interfacial Properties: Application to Subsurface Gas Injection

“…The Lorentz-Berthelot combing rules (equations (6) and (7)) were used to obtain the interaction strength and effective diameter parameters between various atoms i and j [34]) with:…”

“…It has also been injected into the subsurface for disposal by many operators [5]. This is due to the normal process of disposal, the Claus process, becoming less economical [6] in recent times. For the injected gas to remain in the subsurface, it must be trapped sufficiently, i.e.…”

“…Structural trapping, where a layer of rock (commonly referred to as the caprock) is present with a seal, which has negligible permeability. This then prevents the buoyant gas from flowing upwards [6]. 2.…”

Energy exploitation of acid gas with high H2S content by means of a chemical looping combustion system

“…This technology allows the gas and petroleum industry to recover as much as 99.9 wt.% of the total sulfur separated from natural gas [1]. Different alternatives to deal with acid gas mixtures have emerged in the last years, such as the injection of compressed acid gas into porous formations, or its solubilization into light hydrocarbons solvent and subsequent injection into depleted reservoirs as a miscible flood Enhanced Oil Recovery (EOR) technique [2,3]. However, these technologies do not exploit the energy potential of its combustible fraction, i.e.…”

“…Therefore, the resistance of oxygen carriers to the presence of sulfur in fuels becomes crucial when an acid gas is subjected to a CLC process since the amount of H 2 S in an acid gas mixture can be very high, as high as 40 vol.% [2]. Our research group at Instituto de Carboquímica (ICB-CSIC) has studied the performance of four highly reactive oxygen carriers in a 500 W th continuous CLC unit when the fuel contained variable amounts of H 2 S (up to 3400 vppm) [13][14][15][16].…”