Method and apparatus for the desalination of crude tall oil
OwnerHermann Stageinventor
Life of this patent
Estimating the term…
Abstract
Crude tall oil and water undergo a mass transfer at predetermined temperature and pressure values so as to remove salts from the oil. The flow of the crude oil through a collector disposed beneath an evaporator is maintained at a speed 8 to 80 times less than the trickling speed of the crude oil flowing through the evaporator. Salts are also precipitated from the crude oil by a cooling process.
Claims21
A method for removing salts from crude tall oil having said salts dissolved or emulsified therein, wherein said method comprises:
- providing and contacting water with said oil at a temperature above 100.degree. C.;
- maintaining said oil and said water under a predetermined pressure;
- and
- effecting a mass transfer between said water and said oil such that said water remains in a liquid aggregate state.
A method for removing salts from crude tall oil using a film evaporator, a liquid collector disposed below said film evaporator and a cooling device operatively associated with said liquid collector, said crude tall oil having said salts dissolved or emulsified therein, wherein said method comprises:
- performing a film evaporation on said crude tall oil at a predetermined trickling speed in said film evaporator;
- collecting said crude tall oil in a liquid state in said liquid collector;
- maintaining a flow speed of said crude tall oil in said liquid collector at a speed 8 to 80 times less than said predetermined trickling speed;
- subjecting said crude tall oil in said liquid collector to a subcooling between 1.degree. C. to 5.degree. C. below a boiling temperature of said crude tall oil with said cooling device;
- precipitating said salts from said crude tall oil in said liquid collector;
- and
- removing continuously said salts from said liquid collector.
A method for removing salts from crude tall oil using a film evaporator, a liquid collector disposed below said film evaporator and a cooling device operatively associated with said liquid collector, said crude tall oil having said salts dissolved or emulsified therein, wherein said method comprises:
- performing a film evaporation on said crude tall oil at a predetermined trickling speed in said film evaporator;
- collecting said crude tall oil in a liquid state in said liquid collector;
- maintaining a flow speed of said crude tall oil in said liquid collector at a speed 8 to 80 times less than said predetermined trickling speed;
- subjecting said crude tall oil in said liquid collector to a subcooling between 1.degree. C. to 5.degree. C. below a boiling temperature of said crude tall oil with said cooling device;
- precipitating said salts from said crude tall oil in said liquid collector;
- and
- removing discontinuously said salts from said liquid collector.
Dependencies are inferred from the claim text.