#physical refining

[spectecindia]

Spectec group is a leading oil deodorizing system.Physical refinery plants are an ideal solution for minimizing processing cost & processing loss.Oil extraction

Deodorizing is nothing but The DISTILLATION process. in which fatty acid is distilled from oil. Under high temperature condition and in presence of high vacuum, with the help of sparging & agitation steam.

[mectechindia-blog]

Physical refining is a method used for the removal of free fatty acids during the process of distillation, itself a stage of deodorizing. MECTECH’s custom-designed Pre-treatment & Bleaching is cost effective and ensures perfect results.

[mectechindia-blog]

Process Between Physical Refining and Chemical Refining

Vegetable oil refining process is further segregated into two major processes i.e. physical and chemical. Edible oils and fats...

“Refining” is generally referred to the processes designed for neutralizing free fatty acids (FFA) in the edible oils by introducing alkali and via centrifugal separation of heavy phase insoluble material.

[mectechindia-blog]

Mectech Group is a globally physical refining plant supplier with complete solution.

Physical refining is completely different from chemical refining process. Though it uses the same Degumming, Bleaching and deodorizing process. It is separated with involvement if all physical activities included in this process.

[ithinkthereforeiship]

PLS SEND HELP

So for some Chemistry homework, I have to make a powerpoint-slide-sized poster about pretty much anything I want, as long as it's chemically relatable. For some reason I chose to do it about palm oil, and bc I'm (hopefully) going to read Chemical Engineering in September, I'm focussing on the production of it, from Crude Palm Oil (CPO) to Refined, Bleached and Deodourised Palm Oil (RBDPO).

The thing is, I can't work out what the process actually is; while all the internet sources I've looked at have agreed that the oil is melted, degummed ("A step in the refining of oils and fats. The addition of phosphoric acid to the crude oil results in the separation of all or some of phospholipids which present." as defined by Rohani Binti Mohd Zin), bleached and deodourised, there are some sources (e.g. Wikipedia and here) that mention a preliminary step, factional crystallisation. Apparently, the fractionation of the CPO separates the solid (stearin), which is used for margarine and ice cream etc., from the liquid (olein), which is often used in cooking oils. Other sources seem to insinuate that the fractionation takes place after/during the degumming process and basically I'm super confused and would really appreciate if someone could talk me through physical refinement of palm oil :))