METHOD OF REMOVING AND NEUTRALIZING HYDROGEN SULFIDE AND MERCAPTANS, AND INSTALLATION Russian patent published in 2006 - IPC C10G29/00 

FIELD: crude oil treatment and petroleum processing.

SUBSTANCE: removal of hydrogen sulfide and mercaptans from crude oil and gas condensate is accomplished by directly heating oil well produce in hydrocyclone and treating released gases together with steam-gas mixture by hydrogen sulfide- and mercaptan-selective reagent: aqueous solution of 1-hydroxy-2[1,3-oxazetidin]-3-yl-ethane (C₄H₉O₂N) followed by cooling at temperature not higher than 15°C and separation at pressure at least 1.3 excessive atm. Installation has stilling manifold, depulser, separators, hydrocyclone, condenser-cooler, gasoline separator, discharge pumps, buffer vessel, and tanks. Accumulation tank for cleaned product is provided with heated hydrocyclone having diminishing cone angle and steam-gas line exit connected to gasoline separator equipped with mass-exchange bulk attachment.

EFFECT: considerably improved quality of well produce and reduced loss of raw material.

2 cl, 3 dwg