US 10,889,766 B2
Petroleum demulsifier
Sébastien Barreau, Noyon (FR); Dirk Packet, Rotselaar (BE); Pauline Couleon, Conflans Sainte Honorine (FR); and Marine Fouquet, La Varenne Saint Hilaire (FR)
Assigned to OLEON NV, Evergem (BE)
Appl. No. 16/85,905
Filed by OLEON NV, Evergem (BE)
PCT Filed Mar. 15, 2017, PCT No. PCT/EP2017/056166
§ 371(c)(1), (2) Date Sep. 17, 2018,
PCT Pub. No. WO2017/158054, PCT Pub. Date Sep. 21, 2017.
Claims priority of application No. 16 52359 (FR), filed on Mar. 18, 2016.
Prior Publication US 2019/0093024 A1, Mar. 28, 2019
Int. Cl. C10G 33/04 (2006.01); B01D 17/04 (2006.01); C10L 1/18 (2006.01)
CPC C10G 33/04 (2013.01) [B01D 17/047 (2013.01); C10L 1/1802 (2013.01)] 7 Claims
 
1. A process for demulsification of a water and petroleum emulsion comprising contacting the emulsion with a demulsifier comprising at least one mannosylerythritol lipid, wherein the total quantity of mannosylerythritol lipid(s) is comprised between 0.5 ppm and 100 ppm, with respect to the weight of the emulsion.