Postupak priprave polimernih aditiva za poboljšanje tečenja sirove nafte

0394217 - ÚCHP 2014 hrv P - Patentový dokument
Erceg Kuzmić, A. - Radošević, M. - Bogdanić, Grozdana - Vuković, R.
Postupak priprave polimernih aditiva za poboljšanje tečenja sirove nafte.
[Production of Polymeric Additives as Pour Point Depressant.]
2008. Vlastník: INA-Industrija nafte Zagreb. Datum udělení patentu: 30.11.2008. Číslo patentu: HR P20070164 A2
Výzkumný záměr: CEZ:AV0Z40720504
Klíčová slova: polymeric additives * pour point depressant
Kód oboru RIV: CI - Průmyslová chemie a chemické inženýrství

Razrađen je postupak za pripravak polimernih aditiva za poboljšanje tečenja plinskog kondenzata. Postupak se sastoji u tome da se prirede terpolimeri dugolančanih estera metakrilne (akrilne) kiseline sa C10-C25 u alkilnom lancu sa stirenom i akrilnom (metakrilnom) kiselinom, odnosno kopolimeri dugolančanih estera metakrilne (akrilne) kiseline sa C10-C25 u alkilnom lancu sa stirenom ili s akrilnom (metakrilnom) kiselinom, u organskim otapalima, kao na primjer toluenom ili ksilenom, mehanizmom slobodnih radikala uz azo ili peroksidni inicijator, posebno azobisizobutironitrilom ili terc.butil peroksi-2-etilheksanoatom, koji se dodaje na početku ili tijekom polimerizacije. Polimerizacija se izvodi na 80-1000C u inertnoj atmosferi (dušika) u vremenu od 2 do 6 sati.

Synthesis and evaluation of polymeric additives for improving the flow properties of gas condensate. The additives were prepared by the free-radical initiated polymerization of methacryl esters with styrene and acrylic or methacrylic acid. Polymerization was performed by initiator AIBN in toluene or xylene at 80 C. The influence of additives structure,composition and molar weight, as well as gas condensate properties on its flow properties was studied. Gas condensate samples from the fields of Kalinovac, Stari Gradac and Molve located in the northern Croatia were used for evaluation of the prepared additives. It was found that the additives efficiency was considerably influenced by their properties and by condensate n-paraffin content and distribution.
Trvalý link: http://hdl.handle.net/11104/0222511