emulsification process and de-emulsification techniques

7/24/2019 Emulsification Process and de-emulsification Techniques

1/17

JAIPURNATIONALUNIVERSITY

EMULSIFICATION PROCESS AND

DE-EMULSIFICATION

TECHNIQUES

SUBMITTED TO- PRESENTED BY-

Mrs. Kalpana sharma Deovrat Kumar (!"-#$%

Dr. Su&h'r ar)


2/17

CONTENT

Emulsion and de-emulsion Water in oil emulsion

Types of emulsion

Formation of emulsion

De-emulsion

De-stablizing emulsion

Mechanism involved in de-emulsification

Methods of emulsion breaking

Desalter and other methods


3/17

Emulsion And Emulsifcation

*n emuls'on 's a &'spers'on (&roplets% o+

one l',u'& 'n another 'mm's'le l',u'&.

The phase that 's present 'n the +orm o+

&roplets 's the &'sperse& or 'nternalphase/ an& the phase 'n 0h'h the

&roplets are suspen&e& 's alle& the

ont'nuous or e1ternal phase. Emuls'on our 'n almost all phases o+

o'l pro&ut'on an& proess'n).


4/17

Water in Oil Emulsion


5/17

Types O Emulsion

Pro&ue& o'l+'el& emuls'ons an

elass'+'e& 'nto three roa& )roups2

3ater-'n-o'l

O'l-'n-0ater

Mult'ple or omple1 emuls'ons


6/17

Formation O Emulsion


7/17

De-emulsifcation

De-emuls'+'at'on 's the rea4'n) o+ a

ru&e o'l emuls'on 'nto o'l an& 0ater

phases. Three aspets o+ &e-

emuls'+'at'on2 Rate or the spee& at 0h'h th's

separat'on ta4es plae

*mount o+ 0ater le+t 'n the ru&e o'l a+terseparat'on

5ual't6 o+ separate& 0ater +or &'sposal


8/17

De-stabilizing Emulsions:

Temperature

*)'tat'on or shear

Res'&ene T'me

Sol'&s Removal

!ontrol o+ Emuls'+6'n) *)ent

Retro+'tt'n)


9/17

Mecanism !n"ol"ed inDe-emulsifcation:

7loulat'on or *))re)at'on

!oalesene

Se&'mentat'on or !ream'n)


10/17

Metods O Emulsion #rea$ing orDe-emulsifcation:

*&&'n) !hem'al Demuls'+'es

Inreas'n) the Temperature o+ the

Emuls'on

*ppl6'n) Eletrostat' 7'el&s That

Promote !oalesene

Re&u'n) the 7lo0 8elo't6 That *llo0

rav'tat'onal Separat'on o+ O'l *n&3ater


11/17

De-emuls'+'at'on metho&s are appl'at'on

spe'+' eause o+ the 0'&e var'et6 o+ ru&e

o'ls/ r'nes/ separat'on e,u'pment/ hem'al

&emuls'+'es/ an& pro&ut spe'+'at'ons The most ommon metho& o+ emuls'on

treatment 's the appl'at'on o+ heat an& an

appropr'ate hem'al &emuls'+'es to promote

&esta'l'9at'on/ +ollo0e& 6 a settl'n) t'me0'th eletrostat' )r'&s to promote

)rav'tat'onal separat'on.


12/17

Thermal Methods:"eat'n) re&ues the o'l

v'sos't6 an& 'nreases the 0ater-settl'n) rates

Mecha!cal Methods:

Free-"ater #oc$o%t Dr%ms: 7ree-0ater4no4out &rums separate the +ree 0ater +rom

the ru&e o'l:0ater m'1ture

Prod%ct!o Tra&s or Three-Phase

Se&arators:Three-phase separators orpro&ut'on traps are use& to separate the

pro&ue& +lu'&s 'nto o'l/ 0ater/ an& )as.


13/17

Desalters :are normally designed aseiter one-stage or multistage

desalters % &enerally' desalters use acombination o cemical addition'electrostatic treating' and settlingtime%


14/17

Electrical Methods: Electrostatic gridsare sometimes used or emulsiontreatment% (ig-"oltage electricity)electrostatic grids* is oten an e+ecti"emeans o brea$ing emulsionsChem!cal Methods: The most ommon

metho& o+ emuls'on treatment 's a&&'n)&emuls'+'es.

These hem'als are &es')ne& to

neutral'9e the sta'l'9'n) e++et o+

emuls'+6'n) a)ents.

7loulants are hem'als that +loulate

the 0ater &roplets an& +a'l'tate

oalesene


15/17

M!'!()A(!tat!o: 7or the &emuls'+'es

to 0or4 e++et'vel6/ 't must ma4e 'nt'mateontat 0'th the emuls'on an& reah the

o'l:0ater 'nter+ae.

Dosa(e:The amount o+ hem'al a&&e&'s also 'mportant. Too l'ttle &emuls'+'es

0'll leave the emuls'on unresolve&.

!onversel6/ a lar)e &ose o+ &emuls'+'es

(an over treat on&'t'on% ma6 e&etr'mental. Beause &emuls'+'es are

sur+ae-at've a)ents l'4e the emuls'+'ers


16/17

,eerence:

petrowiki.org/Oil_emulsions

petrowiki.org/Oil_demulsification


17/17

THAN#

*OU

emulsification process and de-emulsification techniques

Documents