FIELD: crude oil treatment. SUBSTANCE: removal of hydrogen sulfide and low-molecular mercaptans is accomplished by treating raw material with methanolethanolamine, dimethanolethanolamine, methanoldiethanolamine, or their mixture taken in amount 0.3 to 2 mole per 1 mole of mercaptan and hydrogen sulfide sulfur at temperature from 20 to 80 C. Amines are used as aqueous solution preliminarily obtained by interaction of mono- or diethanolamine with formaldehyde aqueous solution at molar ratio of ethanolamine to formaldehyde 1:(1-2) at room temperature. EFFECT: considerably increased degree of purification. 4 cl, 6 ex
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF OIL TRANSPORT | 1996 |
|
RU2092613C1 |
| METHOD OF CLARIFICATION OF PETROLEUM, GAS CONDENSATE AND PETROLEUM PRODUCTS FROM HYDROGEN SULFIDE AND / OR LOW-MOLECULAR MERCAPTANS | 2000 |
|
RU2216568C2 |
| HYDROGEN SULFIDE-CONTAINING CRUDE OIL PRETREATMENT PROCESS | 2002 |
|
RU2220756C2 |
| HYDROGEN SULPHIDE NEUTRALISER AND METHOD FOR USE THEREOF | 2013 |
|
RU2522459C1 |
| METHOD OF REMOVING HYDROGEN SULFIDE FROM GAS CONDENSATE, PETROLEUM, AND PETROLEUM PRODUCTS | 1997 |
|
RU2119526C1 |
| HYDROGEN SULFIDE CONTAINING CRUDE OIL TREATMENT PROCESS | 2003 |
|
RU2283856C2 |
| METHOD OF REMOVING HYDROGEN SULFIDE AND MERCAPTANS FROM CRUDE OIL AND GAS CONDENSATE | 1996 |
|
RU2121491C1 |
| HYDROGEN SULPHIDE NEUTRALISER AND METHOD FOR PRODUCTION THEREOF | 2011 |
|
RU2470987C1 |
| METHOD FOR DEODORIZING PURIFICATION OF CRUDE OIL, GAS CONDENSATE FROM HYDROGEN SULFIDE AND LOW-MOLECULAR MERCAPTANS | 2001 |
|
RU2186087C1 |
| HYDROGEN SULPHIDE SCAVENGER | 2012 |
|
RU2490311C1 |
