Removal of naphthenic acids in crude oils and distillates
    5.
    发明授权
    Removal of naphthenic acids in crude oils and distillates 失效
    去除原油和馏出物中的环烷酸

    公开(公告)号:US5961821A

    公开(公告)日:1999-10-05

    申请号:US49466

    申请日:1998-03-27

    摘要: The instant invention is directed to a process for extracting organic acids including naphthenic acids, heavy metals, and sulfur from a starting crude oil comprising the steps of:(a) treating the starting crude oil containing organic acids, heavy metals, and sulfur with an amount of an ethoxylated amine and water under conditions and for a time and at a temperature sufficient to form a water-in-oil emulsion of amine salt wherein said ethoxylated amine has the following formula: ##STR1## where m=1 to 10 and R=C.sub.3 to C.sub.6 hydrocarbon; (b) separating said emulsion of step (a) into a plurality of layers, wherein one of such layers contains a treated crude oil having decreased amounts of organic acids, heavy metals and sulfur;(c) recovering said layer of step (b) containing said treated crude oil having decreased amounts of organic acids, heavy metal and sulfur and layers containing water and ethoxylated amine salt.

    摘要翻译: 本发明涉及从起始原油中提取包括环烷酸,重金属和硫的有机酸的方法,包括以下步骤:(a)用含有机酸,重金属和硫的起始原油用 乙氧基化胺和水的量在足以形成胺盐的油包水乳液的条件和时间和温度下进行,其中所述乙氧基化胺具有下式:其中m = 1〜10,R = C3〜 C6烃; (b)将步骤(a)的所述乳液分离成多个层,其中这些层之一含有具有降低量的有机酸,重金属和硫的经处理的原油; (c)回收含有所述经处理的原油的所述含有有机酸,重金属和硫的量减少的步骤(b)层,以及含有水和乙氧基化胺盐的层。

    Phytoadditives for enhanced soil bioremediation
    6.
    发明授权
    Phytoadditives for enhanced soil bioremediation 失效
    用于增强土壤生物修复的植物添加剂

    公开(公告)号:US5716839A

    公开(公告)日:1998-02-10

    申请号:US542590

    申请日:1995-10-13

    CPC分类号: B09C1/105 B09C1/10 C12N1/20

    摘要: A bioremediation process is provided comprising adding cedar pieces to a hydrocarbon contaminated soil in an amount ranging from about 5 to about 15 wt. % based on the weight of the contaminated soil and applying sufficient nitrogen and phosphorous nutrients to the soil to provide a C:N:P ratio in the range of about 100:10:1 to about 100:1:0:1.

    摘要翻译: 提供了一种生物修复方法,包括将碳素污染土壤中的雪松片以约5至约15wt。 基于污染土壤的重量,并向土壤中施加足够的氮和磷营养物以提供在约100:10:1至约100:1:0:1范围内的C:N:P比率。