Hydrate equilibrium conditions in aqueous electrolyte solutions: Mixtures of methane and carbon dioxide

Journal Article · Sat Jan 01 00:00:00 EST 1994 · Journal of Chemical and Engineering Data; (United States)

DOI:https://doi.org/10.1021/je00013a054· OSTI ID:5394151

Dholabhai, P D; Bishnoi, P R ^[1]

---

1. Univ. of Calgary, Calgary, Alberta (Canada). Dept. of Chemical and Petroleum Engineering

Gas hydrates play an important role in the exploitation, transportation, and processing of natural gas. There is risk of hydrate formation at all the stages of natural gas handling due to the operating conditions of pressure and temperature that favor hydrate formation. Large reserves of natural gas also exist as hydrates. In addition, natural gas may have to be drilled through a zone of hydrates. Carbon dioxide is normally present along with these hydrocarbons. CO[sub 2] emission from the various combustion processes is identified to be the major reason for the greenhouse effect, and it is suggested that it be extracted and stored in deep sea waters as hydrates. Hydrate phase equilibrium data on CO[sub 2] and its mixtures with hydrocarbons are, therefore, essential. Three-phase equilibrium conditions (aqueous solution-vapor-hydrate) of methane + carbon dioxide mixtures in electrolyte solutions containing NaCl, KCl, CaCl[sub 2], and their mixtures were measured in the temperature range of 262--285 K and in the pressure range of 1.5--10.6 MPa a using a pressure search'' method. The ionic strengths of the solutions ranged from 0.7 to 6.76 m.

• OSTI ID: 5394151
• Journal Information: Journal of Chemical and Engineering Data; (United States), Vol. 39:1; ISSN 0021-9568
• Country of Publication: United States
• Language: English

Related Subjects

03 NATURAL GAS
37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
CARBON DIOXIDE
THERMODYNAMIC PROPERTIES
GAS HYDRATES
METHANE
CALCIUM CHLORIDES
EXPERIMENTAL DATA
MEASURING METHODS
POTASSIUM CHLORIDES
SODIUM CHLORIDES
ALKALI METAL COMPOUNDS
ALKALINE EARTH METAL COMPOUNDS
ALKANES
CALCIUM COMPOUNDS
CALCIUM HALIDES
CARBON COMPOUNDS
CARBON OXIDES
CHALCOGENIDES
CHLORIDES
CHLORINE COMPOUNDS
DATA
HALIDES
HALOGEN COMPOUNDS
HYDRATES
HYDROCARBONS
INFORMATION
NUMERICAL DATA
ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
POTASSIUM COMPOUNDS
SODIUM COMPOUNDS
033000* - Natural Gas- Properties & Composition
400201 - Chemical & Physicochemical Properties