Refrigeration – Processes – Circulating external gas
Patent
1990-08-31
1991-11-05
Capossela, Ronald C.
Refrigeration
Processes
Circulating external gas
62 18, 62 20, 62 28, 62 44, F25J 500
Patent
active
050622706
ABSTRACT:
The invention relates to a method and apparatus for start-up, transformation from start-up to normal operation and normal separation of carbon dioxide and other acid gases from methane using a distillation column with a controlled freezing zone. Normally, the feedstream is treated in at least one distillation zone, a controlled freezing zone, and another acid gas stripping apparatus. The freezing zone produces a carbon dioxide slush which is melted and fed into a distillation section and a methane-enriched stream which is fed to a separate stripping unit. Start-up is accomplished by refluxing the product stream from the separate stripping unit to the distillation column. Transformation is accomplished by separating the methane-enriched stream produced by the freezing zone into a liquid component for refluxing to the column and a vapor component to be fed to the separate stripping unit.
REFERENCES:
patent: 4383841 (1983-05-01), Ryan et al.
patent: 4417909 (1983-11-01), Weltmer et al.
patent: 4462814 (1984-07-01), Holmes et al.
patent: 4533372 (1985-08-01), Valencia et al.
patent: 4636334 (1987-01-01), Skinner et al.
patent: 4761167 (1988-08-01), Nicholas et al.
Denton Robert D.
Haut Richard C.
Thomas Eugene R.
Capossela Ronald C.
Exxon Production Research Company
LandOfFree
Method and apparatus to start-up controlled freezing zone proces does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and apparatus to start-up controlled freezing zone proces, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus to start-up controlled freezing zone proces will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-492131