Results 21 to 30 of about 286,543 (254)
On the kinetics between CO2 and alkanolamines both in aqueous and non-aqueous solutions—II. Tertiary amines [PDF]
, 1988 The reaction between CO2 and tertiary alkanolamines (MDEA, DMMEA, TREA) has been studied in aqueous solutions at various temperatures. Also the absorption of CO2 in a solution of MDEA in ethanol has been studied.
Swaaij, W.P.M. van, Versteeg, G.F.
core +3 more sources
Steady-state and transient dynamics for sweetening of LPG process
Digital Chemical Engineering, 2022 Amine treating is the most common system for gas sweetening that is used in petroleum, gas and petrochemical industries. Steady-state analysis of the process is conducted on the developed simulation-model using Aspen Hysys.
K. Karthigai Selvan +2 more
doaj
Critical behavior of charged dilaton black holes in AdS space [PDF]
Phys. Rev. D 102, 064021 (2020), 2020 We revisit critical behaviour and phase structure of charged anti-deSitter (AdS) dilaton black holes for arbitrary values of dilaton coupling $\alpha$, and realize several novel phase behaviour for this system. We adopt the viewpoint that cosmological constant (pressure) is fixed and treat the charge of the black hole as a thermodynamical variable.
arxiv +1 more source
HSS anions reduction combined with the analytical test of aqueous MDEA in South Pars gas complex
Natural Gas Industry B, 2022 Heat stable salts (HSS) form in amine systems as a result of the reaction products of the amine and acidic compounds stronger than H2S and CO2 in the inlet stream to the gas treating unit (GTU).
Seyed Ali Akbar Mansoori +6 more
doaj
Charge regulation of colloidal particles in aqueous solutions [PDF]
Physical Chemistry Chemical Physics, 2020, 2020 We study charge regulation of colloidal particles inside aqueous electrolyte solutions. To stabilize colloidal suspension against precipitation, colloidal particles are synthesized with either acidic or basic groups on their surface. In contact with water these surface groups undergo proton transfer reaction, resulting in colloidal surface charge.
arxiv +1 more source
Thermodynamic geometry and phase transition of spinning AdS black holes [PDF]
Phys. Rev. D 104, 104066 (2021), 2021 Employing the thermodynamic geometry approach, we explore phase transition of four dimensional spinning black holes in an anti-de Sitter (AdS) spaces and found the following novel results. (i) Contrary to the charged AdS black hole, thermodynamic curvature of the spinning AdS black hole diverges at the critical point, without needing normalization.(ii)
arxiv +1 more source
Mass transfer accompanied by reversible chemical reactions in an inert porous sphere impregnated with a stagnant liquid [PDF]
, 1993 The absorption of gaseous components in porous particles impregnated with a reactive liquid phase has been studied theoretically. A model that describes this absorption process has been developed in which it is assumed that the porous particles act as a ...
Hogendoorn, J.A. +2 more
core +5 more sources
Retrieving Effective Acoustic Impedance and Refractive Index for Size Mismatch Samples [PDF]
, 2021 In this paper, we have presented an analytical solution to extract the effective properties of acoustic metamaterials from the measured complex transmission and reflection coefficients when the metamaterial and impedance tube have different sizes. We have first modeled this problem as a bilayer metamaterial located inside a duct and treated the air gap
arxiv +1 more source
Acid Gas Removal from Natural Gas by Water Washing
Chemical Engineering Transactions, 2017 Projections in the future energy scenario outline an important role played by fossil fuels to meet the increasing global energy demand. A “golden age” has been recently outlined for natural gas, in particular, as the fastest growing and the cleanest of ...
G. De Guido +3 more
doaj +1 more source
The Scientific World Journal, 2014 Oil-based drilling fluid is used more and more in the field of oil and gas exploration. However, because of unrecyclable treating agent and hard treatment conditions, the traditional treating technologies of waste oil-based drilling fluid have some ...
Pingting Liu +4 more
doaj +1 more source