延长油田某炼厂含油污泥的含水率为19.63%,含油率为28.85%,外观呈油黑色,具有较大的回收利用价值。以热解油回收率为考核指标,通过单因素实验和正交实验对某炼厂含油污泥热解参数进行了优化,研究了热解终温、停留时间、氮气流速、升温...延长油田某炼厂含油污泥的含水率为19.63%,含油率为28.85%,外观呈油黑色,具有较大的回收利用价值。以热解油回收率为考核指标,通过单因素实验和正交实验对某炼厂含油污泥热解参数进行了优化,研究了热解终温、停留时间、氮气流速、升温速率以及加热方式对热解油回收率的影响规律,并初步分析了热解终温对热解油凝点的影响。结果表明,热解时间对热解油回收率影响最大,氮气流速无明显影响。最佳热解条件为:污泥初温时加入热解炉,热解终温440℃、停留时间4 h、氮气流速80 m L·min^(-1)、升温速率10℃·min^(-1),此时的热解油回收率最大,达到73.56%。另外,在热解终温400℃~450℃范围内,随着温度的升高,热解油的凝固点逐渐降低。展开更多
利用真空管式热解炉对延长油田含油污泥进行真空热解,研究了以活性白土为催化剂,在真空度70 k Pa时,热解终温、保温时间、升温速率对油回收率的影响,对热解工艺进行了优化。研究结果表明,含油污泥真空热解油回收率影响因素由大到小的次...利用真空管式热解炉对延长油田含油污泥进行真空热解,研究了以活性白土为催化剂,在真空度70 k Pa时,热解终温、保温时间、升温速率对油回收率的影响,对热解工艺进行了优化。研究结果表明,含油污泥真空热解油回收率影响因素由大到小的次序为:保温时间>热解终温>催化剂加量>升温速率,保温时间对油回收率影响最大;理想的热解工艺参数为:热解终温440°C,保温时间140 min,催化剂加量1%,升温速率5 K/min;真空热解是含油污泥资源化利用的切实可行的方法之一。展开更多
A novel process to recovery natural gas liquids from oil field associated gas with liquefied natural gas (LNG)cryogenic energy utilization is proposed.Compared to the current electric refrigeration process,the propose...A novel process to recovery natural gas liquids from oil field associated gas with liquefied natural gas (LNG)cryogenic energy utilization is proposed.Compared to the current electric refrigeration process,the proposed process uses the cryogenic energy of LNG and saves 62.6%of electricity.The proposed process recovers ethane, liquid petroleum gas(propane and butane)and heavier hydrocarbons,with total recovery rate of natural gas liquids up to 96.8%.In this paper,exergy analysis and the energy utilization diagram method(EUD)are used to assess the new process and identify the key operation units with large exergy loss.The results show that exergy efficiency of the new process is 44.3%.Compared to the electric refrigeration process,exergy efficiency of the new process is improved by 16%.The proposed process has been applied and implemented in a conceptual design scheme of the cryogenic energy utilization for a 300 million tons/yr LNG receiving terminal in a northern Chinese harbor.展开更多
文摘延长油田某炼厂含油污泥的含水率为19.63%,含油率为28.85%,外观呈油黑色,具有较大的回收利用价值。以热解油回收率为考核指标,通过单因素实验和正交实验对某炼厂含油污泥热解参数进行了优化,研究了热解终温、停留时间、氮气流速、升温速率以及加热方式对热解油回收率的影响规律,并初步分析了热解终温对热解油凝点的影响。结果表明,热解时间对热解油回收率影响最大,氮气流速无明显影响。最佳热解条件为:污泥初温时加入热解炉,热解终温440℃、停留时间4 h、氮气流速80 m L·min^(-1)、升温速率10℃·min^(-1),此时的热解油回收率最大,达到73.56%。另外,在热解终温400℃~450℃范围内,随着温度的升高,热解油的凝固点逐渐降低。
文摘利用真空管式热解炉对延长油田含油污泥进行真空热解,研究了以活性白土为催化剂,在真空度70 k Pa时,热解终温、保温时间、升温速率对油回收率的影响,对热解工艺进行了优化。研究结果表明,含油污泥真空热解油回收率影响因素由大到小的次序为:保温时间>热解终温>催化剂加量>升温速率,保温时间对油回收率影响最大;理想的热解工艺参数为:热解终温440°C,保温时间140 min,催化剂加量1%,升温速率5 K/min;真空热解是含油污泥资源化利用的切实可行的方法之一。
基金Supported by the National Natural Science Foundation of China(20876056,20536020)the PhD Program Fund from Ministry of Education of China(20100172110016)
文摘A novel process to recovery natural gas liquids from oil field associated gas with liquefied natural gas (LNG)cryogenic energy utilization is proposed.Compared to the current electric refrigeration process,the proposed process uses the cryogenic energy of LNG and saves 62.6%of electricity.The proposed process recovers ethane, liquid petroleum gas(propane and butane)and heavier hydrocarbons,with total recovery rate of natural gas liquids up to 96.8%.In this paper,exergy analysis and the energy utilization diagram method(EUD)are used to assess the new process and identify the key operation units with large exergy loss.The results show that exergy efficiency of the new process is 44.3%.Compared to the electric refrigeration process,exergy efficiency of the new process is improved by 16%.The proposed process has been applied and implemented in a conceptual design scheme of the cryogenic energy utilization for a 300 million tons/yr LNG receiving terminal in a northern Chinese harbor.
