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首页> 外文期刊>Journal of industrial and engineering chemistry >Catalytic neutralization of acidic crude oil utilizing ammonia in ethylene glycol basic solution
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Catalytic neutralization of acidic crude oil utilizing ammonia in ethylene glycol basic solution

机译：乙二醇碱性溶液中利用氨催化中和酸性原油

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摘要

Naphthenic acids in crude oil is a main contributor to the corrosion problem in the petroleum industry and removal of these acids from the crude oil fraction become a great concern nowadays. Catalytic neutralization is an alternative technique to be investigated in this study. A basic chemical with a dosing of 0.4% and 4% of ammonia solution in ethylene glycol (NH3-EG) were used as the acid removal agent with a concentration of 100 mg/L, 500 mg/L, and 1000 mg/L for three different crude oils which are Petronas Penapisan Melaka heavy (crude A) and light crude (crude B) and Korean crude (crude C). A series of alkaline earth metal oxide catalysts; calcium, barium and magnesium supported onto alumina with different calcination temperatures were used to enhance the reaction. The results showed 67.4% (3000 mg/L of 4% NH3-EG) reduction in TAN for crude Aand 78.7%(10,000 mg/L of 4% NH3-EG) reduction for crude C by using the best studied catalyst which was Ca/Al2O3 with a calcination temperature of 1100 °C. For crude B, there was 71.2% reduction of TAN with 1000 mg/L of 0.4% of NH3-EG. Additionally, based on the results obtained, a mechanistic naphthenic acid reduction reaction pathway was postulated.
机译：原油中的环烷酸是造成石油工业腐蚀问题的主要因素，如今从原油馏分中去除这些酸已成为人们关注的重大问题。催化中和是本研究中要研究的另一种技术。配给量为100％/ L，500 mg / L和1000 mg / L的碱性化学品（浓度为0.4％和4％的乙二醇在NH3-EG中的氨溶液）用作除酸剂。三种不同的原油分别是马来西亚国家石油公司（Petronas Penapisan Melaka）重油（原油A）和轻质原油（原油B）和韩国原油（原油C）。一系列碱土金属氧化物催化剂;用不同煅烧温度负载在氧化铝上的钙，钡和镁用于增强反应。结果表明，使用研究最好的催化剂Ca，粗制A的TAN降低67.4％（3000 mg / L的4％NH3-EG），而粗制C的78.7％（10,000 mg / L的4％NH3-EG）降低。 / Al2O3，煅烧温度为1100°C。对于粗制B，1000 mg / L的0.4％NH3-EG可使TAN减少71.2％。另外，基于获得的结果，提出了机理性环烷酸还原反应途径。

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