METHOD FOR REDUCING A QUANTITY OF SULFIDRIL COMPOUNDS IN ACID WATER SUBSTRATES OR ACID HYDROCARBONS, OR COMBINATIONS OF THE SAME, AND A SUBSTRATE TREATED TO REDUCE THE PRESENCE OF AT LEAST ONE SULFIDRIL COMPOUND

摘要

Selective, irreversible removal of hydrogen sulfide (HSUB2/SUBS) and other sulfhydryl compounds from a gas stream, such as sour natural gas and sour hydrocarbon liquids is achieved with a scavenging agent having hydroxyalkyl functionality and alkylamine functionality. This scavenger possesses a higher capacity for HSUB2/SUBS removal compared with a scavenger having only hydroxyalkyl functionality. The scavenging agent is made by reacting at least one alkanolamine and at least one alkyl amine with an aldehyde, such as formaldehyde.