Abstract
This paper aims at presenting a computational scheme to thermodynamically simulate a continuous multistage operation for separating, by forming clathrate hydrates, carbon dioxide (CO2) and hydrogen sulfide (H2S) from a low-quality natural gas and at showing the stage-to-stage changes in the gas-phase composition, the crystallographic structure and composition of the formed hydrate, and the gas/aqueous-liquid/hydrate equilibrium temperature (the higher temperature limit for hydrate formation). The paper first describes the fundamental concept and algorithm of the computational scheme and then applies the scheme to the processing of a specific natural gas modeled as a CH 4 + C2H6 + C3H8 + N 2 + H2S + CO2 mixture. It is demonstrated that the optimum number of stages should be determined by finding a compromise between the improving removal of CO2 and H2S and increasing losses of combustible substances, particularly C2H 6 and C3H8, from the residual gas with an increasing number of stages.
| Original language | English |
|---|---|
| Pages (from-to) | 15165-15176 |
| Number of pages | 12 |
| Journal | Industrial and Engineering Chemistry Research |
| Volume | 52 |
| Issue number | 43 |
| DOIs | |
| Publication status | Published - 2013 Oct 30 |
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ASJC Scopus subject areas
- Chemical Engineering(all)
- Chemistry(all)
- Industrial and Manufacturing Engineering
Cite this
Thermodynamic simulations of hydrate-based removal of carbon dioxide and hydrogen sulfide from low-quality natural gas. / Akatsu, Satoru; Tomita, Shuhei; Mori, Yasuhiko H.; Ohmura, Ryo.
In: Industrial and Engineering Chemistry Research, Vol. 52, No. 43, 30.10.2013, p. 15165-15176.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Thermodynamic simulations of hydrate-based removal of carbon dioxide and hydrogen sulfide from low-quality natural gas
AU - Akatsu, Satoru
AU - Tomita, Shuhei
AU - Mori, Yasuhiko H.
AU - Ohmura, Ryo
PY - 2013/10/30
Y1 - 2013/10/30
N2 - This paper aims at presenting a computational scheme to thermodynamically simulate a continuous multistage operation for separating, by forming clathrate hydrates, carbon dioxide (CO2) and hydrogen sulfide (H2S) from a low-quality natural gas and at showing the stage-to-stage changes in the gas-phase composition, the crystallographic structure and composition of the formed hydrate, and the gas/aqueous-liquid/hydrate equilibrium temperature (the higher temperature limit for hydrate formation). The paper first describes the fundamental concept and algorithm of the computational scheme and then applies the scheme to the processing of a specific natural gas modeled as a CH 4 + C2H6 + C3H8 + N 2 + H2S + CO2 mixture. It is demonstrated that the optimum number of stages should be determined by finding a compromise between the improving removal of CO2 and H2S and increasing losses of combustible substances, particularly C2H 6 and C3H8, from the residual gas with an increasing number of stages.
AB - This paper aims at presenting a computational scheme to thermodynamically simulate a continuous multistage operation for separating, by forming clathrate hydrates, carbon dioxide (CO2) and hydrogen sulfide (H2S) from a low-quality natural gas and at showing the stage-to-stage changes in the gas-phase composition, the crystallographic structure and composition of the formed hydrate, and the gas/aqueous-liquid/hydrate equilibrium temperature (the higher temperature limit for hydrate formation). The paper first describes the fundamental concept and algorithm of the computational scheme and then applies the scheme to the processing of a specific natural gas modeled as a CH 4 + C2H6 + C3H8 + N 2 + H2S + CO2 mixture. It is demonstrated that the optimum number of stages should be determined by finding a compromise between the improving removal of CO2 and H2S and increasing losses of combustible substances, particularly C2H 6 and C3H8, from the residual gas with an increasing number of stages.
UR - http://www.scopus.com/inward/record.url?scp=84887205476&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84887205476&partnerID=8YFLogxK
U2 - 10.1021/ie402010p
DO - 10.1021/ie402010p
M3 - Article
AN - SCOPUS:84887205476
VL - 52
SP - 15165
EP - 15176
JO - Industrial & Engineering Chemistry Research
JF - Industrial & Engineering Chemistry Research
SN - 0888-5885
IS - 43
ER -