石油炼制与化工
石油煉製與化工
석유련제여화공
PETROLEUM PROCESSING AND PETROCHEMICALS
2009年
10期
54-58
,共5页
高酸原油%酯化反应%催化反应%石油酸
高痠原油%酯化反應%催化反應%石油痠
고산원유%지화반응%최화반응%석유산
high acid crude oil%esterification%catalytic reaction%petroleum acid
采用10种国内外高酸原油在无外加催化剂的条件下进行酯化降酸试验,分析原油性质与酯化降酸率之间的关系,探讨高酸原油自催化酯化反应的原因.结果表明,高酸原油自催化酯化降酸反应的主要原因是原油中以羧酸盐形式存在的钙充当了酯化催化剂,钙含量为140～300 μg/g时催化酯化降酸效果较好.鉴于原油加工过程对钙含量的要求,高酸原油并不适于采用自催化直接酯化降酸.
採用10種國內外高痠原油在無外加催化劑的條件下進行酯化降痠試驗,分析原油性質與酯化降痠率之間的關繫,探討高痠原油自催化酯化反應的原因.結果錶明,高痠原油自催化酯化降痠反應的主要原因是原油中以羧痠鹽形式存在的鈣充噹瞭酯化催化劑,鈣含量為140～300 μg/g時催化酯化降痠效果較好.鑒于原油加工過程對鈣含量的要求,高痠原油併不適于採用自催化直接酯化降痠.
채용10충국내외고산원유재무외가최화제적조건하진행지화강산시험,분석원유성질여지화강산솔지간적관계,탐토고산원유자최화지화반응적원인.결과표명,고산원유자최화지화강산반응적주요원인시원유중이최산염형식존재적개충당료지화최화제,개함량위140～300 μg/g시최화지화강산효과교호.감우원유가공과정대개함량적요구,고산원유병불괄우채용자최화직접지화강산.
The esterification experiments for reducing acid content of high acid crude oils were carried out without the presence of additional catalyst.Ten domestic and imported high acid crudes were involved in discussing the relationship between crude oil properties and the acid removal rate for further study the cause of autocatalytic esterification of high acid crudes.Test results showed that when the calcium contents of crude oils were in the range of 140-300 μg/g, good acid removal rates were observed,which indicated that calcium naphthenate in high acid crudes might act as catalyst to catalyze the esterification of high acid crudes.However,it is unsuitable to adopt the autocatalytic esterification for reducing acid content of high acid crudes due to the limitation of calcium content in crude oil processing.
