中国石油大学学报（自然科学版）2012，Vol.36Issue(6)：19-25,7.DOI:10.3969/j.issn.1673-5005.2012.06.004
压力对原油裂解成气影响的对比模拟实验
Comparative simulation experiments regarding influence of pressure on crude oil cracking into gas
摘要
Abstract
Two different pressure systems (normal pressure system and 20 MPa pressure system) were used to conduct the comparative simulation experiments in order to study the effect of pressure on the oil cracking into gas and the gas production. The results show that low heating rate in long time is more favorable for oil cracking than high heating rate in short time. Pressure has suppression on the oil cracking into gas. The initial oil cracking is retarded and the temperature threshold for oil cracking is higher at high pressure. The 20 MPa pressure system shows much higher C2.5 production rate and lower dry coefficient compared with normal pressure system, which indicates that the heavy hydrocarbon gas C2.5 cracking into methane at high temperature (600-650 ℃ ) was inhibited by pressure. Water is likely to involve in the oil cracking reaction in the overpressure system, reflected by the lower oil transformation rate and higher production rate of carbon dioxide, C2.5 gas and total cracking gas in the o-verpressured-system with more water. The formation mechanisms of the carbon dioxide and heavy hydrocarbon gas C2.5 are close indicated by the similar changes of production rates during the crude oil cracking into gas. The main gas genaration period for total cracking gas is 425-650 ℃ in the experiment, and corresponding R0 is 1.5% -2. 4%.关键词
原油裂解/裂解气/压力/天然气产率/生烃模拟实验Key words
crude oil cracking/ cracking gas/ pressure/ gas production rate/ hydrocarbon generation simulation experiment分类
能源科技引用本文复制引用
陈中红,张守春,查明..压力对原油裂解成气影响的对比模拟实验[J].中国石油大学学报（自然科学版）,2012,36(6):19-25,7.基金项目
国家自然科学基金(40802026、41272140) （40802026、41272140）
山东省自然科学基金(ZR2011DM004) （ZR2011DM004）
中央高校基本科研业务费专项 （）
