US 12,330,087 B2
Multi stage safe dry condensing
Pieter Jellema, Oss (NL); and Jelle Luutzen Nijdam, Oss (NL)
Assigned to SOLUTHERM B.V., Oss (NL)
Appl. No. 17/435,604
Filed by Solutherm B.V., Oss (NL)
PCT Filed Mar. 6, 2020, PCT No. PCT/NL2020/050144
§ 371(c)(1), (2) Date Sep. 1, 2021,
PCT Pub. No. WO2020/185068, PCT Pub. Date Sep. 17, 2020.
Claims priority of application No. 2022700 (NL), filed on Mar. 8, 2019.
Prior Publication US 2022/0152522 A1, May 19, 2022
Int. Cl. B01D 11/04 (2006.01); A23D 9/04 (2006.01); B01D 5/00 (2006.01); B01D 7/00 (2006.01); C11B 3/14 (2006.01); B01D 11/00 (2006.01)
CPC B01D 11/0492 (2013.01) [A23D 9/04 (2013.01); B01D 5/0036 (2013.01); B01D 5/009 (2013.01); B01D 7/00 (2013.01); B01D 11/0488 (2013.01); C11B 3/14 (2013.01); B01D 2011/007 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A method for deodorizing an edible oil or fat provided in a deodorizer, comprising:
in order:
stripping substances from the edible oil or fat with a stripping medium at a temperature of 160 degrees C. or more at a pressure of less than 5 mbar via transporting at least the stripping medium through the deodorizer and a scrubber to produce a deodorized and scrubbed stripping medium having a first pressure and then
directly supplying the deodorized and scrubbed stripping medium at the first pressure as input to a holder of a multi-stage dry condensing system for processing in a multi-step process including:
in a first step where the deodorized and scrubbed stripping medium is received by the holder at the first pressure, reducing a volume of the deodorized and scrubbed stripping medium by desubliming or condensing by cooling the deodorized and scrubbed stripping medium using a first heat transfer fluid loop at a first temperature, and increasing pressure of said desublimed or condensed stripping medium to a first intermediate pressure to produce a first pressurized product that is supplied via a first pipe to a second heat transfer fluid loop;
in a second step, reducing the volume of the first pressurized product by desubliming or condensing by cooling the first pressurized product using the second heat transfer fluid loop at a second temperature, and increasing the first intermediate pressure of the first pressurized product to a second intermediate pressure to produce a second pressurized product that is supplied via a second pipe to a third heat transfer fluid loop;
in a third step, reducing the volume of the second pressurized product by desubliming or condensing by cooling the second pressurized product using the third heat transfer fluid loop at a third temperature, and increasing the second intermediate pressure to atmospheric pressure to produce a discharged product.