Hydrogen sulfide gas evolution during storage or transport of petroleum residua are suppressed by the incorporation of an effective amount of a diamine of the formula
wherein R₁, R₂, R₃, and R₄ are independently an alkyl radical containing 1 to 14 carbon atoms, (CH₂)n-OR₆ or cycloalkyl containing 5 or 6 carbon atoms and R₅ is hydrogen or methyl. R₁ and R₂ and R₃ and R₄ can be alkylene groups joined together with their respective adjacent N to form a heterocyclic ring. R₆ is hydrogen or an alkyl radical having 1 to 5 carbon atoms and n is an integer of 1 to 5.
通过加入有效量的式二胺,可抑制石油残渣在储存或运输过程中的
硫化氢气体演化
其中 R₁、R₂、R₃ 和 R₄ 独立地是含有 1 至 14 个碳原子的烷基、(CH₂)n-OR₆ 或含有 5 或 6 个碳原子的环烷基,R₅ 是氢或甲基。R₁ 和 R₂ 以及 R₃ 和 R₄ 可以是与各自相邻的 N 连接在一起形成杂环的亚烷基。R₆ 是氢或具有 1 至 5 个碳原子的烷基,n 是 1 至 5 的整数。