Title:
METHOD FOR PRODUCING A HYDROCARBON MIXED REFRIGERANT
Document Type and Number:
WIPO Patent Application WO/2011/132306
Kind Code:
A1
Abstract:
Disclosed is an optimal method for producing a hydrocarbon mixed refrigerant which contributes to global warming prevention by reducing the power consumption of refrigeration / AC devices and by reducing CFC substitutes (HCFC, HFC, which are greenhouse gases) by substitution with hydrocarbon refrigerants so to achieve a CFC-free refrigerant, and which has a low fill volume and high refrigeration / AC performance in order to simplify measures against hydrocarbon fires. In the method for producing a hydrocarbon mixed refrigerant, a mixture is created of two or more raw materials chosen from hydrocarbons containing 98.0 mol% or more of a single component with 1-4 carbon atoms, and/or liquefied petroleum gases containing a 98.0 mol% or more in total of two elements selected from propane, n-butane, isobutane, ethane, methane. As the basic process, first the raw material with the lowest raw material container filling pressure is introduced into an evacuated mixing container, and raw materials introduced after the first raw material are adjusted such that the raw material container filling pressure is at least 0.3MPa greater than that of the raw material introduced immediately prior. In the aforementioned process, raw materials are removed from the raw material containers and are introduced into the mixing container such that the total amount of introduced raw material satisfies equation (I) below, and the portion of the total amount of the mixing material that is extracted from the raw material container but not introduced into the mixing container is controlled to be at most 10 mass% of the total of the introduced amount of the raw material.
G≦L×D×0.9 ... (I)
(G: total amount of the raw material introduced into the mixing container; L: capacity of the mixing container; D: saturated liquid density of hydrocarbon mixed refrigerant at the temperature at the manufacturing site)
Inventors:
SHINKAWA YOSHINOBU (JP)
YADA NAOYUKI (JP)
HOSOMURA HIROYOSHI (JP)
YADA NAOYUKI (JP)
HOSOMURA HIROYOSHI (JP)
Application Number:
PCT/JP2010/057226
Publication Date:
October 27, 2011
Filing Date:
April 23, 2010
Export Citation:
Assignee:
SHINKAWA YOSHINOBU (JP)
YADA NAOYUKI (JP)
HOSOMURA HIROYOSHI (JP)
YADA NAOYUKI (JP)
HOSOMURA HIROYOSHI (JP)
International Classes:
C09K5/04; F25B1/00; F25B45/00
Domestic Patent References:
| WO2009081672A1 | 2009-07-02 |
Foreign References:
| JPH08313120A | 1996-11-29 | |||
| JP2002228307A | 2002-08-14 | |||
| JP2004035701A | 2004-02-05 |
Attorney, Agent or Firm:
YOSHIDA, YOSHIHARU (JP)
Yoshiharu Yoshida (JP)
Yoshiharu Yoshida (JP)
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Claims: