Abstract
CO 2 capture,utilization and storage (CCUS) is now recognized as an important technology in the global scope of CO 2 emission reduction, pipeline transportation is the main center to connect the capture point and the use storage point, the first issue to CO2 pipeline transportation is to solve CO 2 source quality research. Yanchang Oilfield has the advantages of CCUS, its coal chemical capture of CO 2 contains different impurities. In the CO 2 pipeline transportation, the impurity content in CO 2 is based on its end use and the actual situation of pipeline. The impurities will affect the efficiency of CO 2 -EOR, the choice of CO 2 state equation, the changes of CO 2 phase diagram and the capacity of pipeline transportation.
Highlights
CCUS (CO2 capture, utilization and storage) is a new technology, which has the potential of large-scale CO2 emission reduction, is expected to achieve low carbon utilization of fossil fuels, which is widely considered to be one of the important technologies to deal with global climate change and control greenhouse gas emissions [1]
There are more than 9.5 million tons CO2 had emitted by coal chemical projects every year, of which about 60%, the concentration is above 85%. the use of CO2 for EOR to reduce CO2 emissions in Northern Shaanxi means that the coal utilization rate is higher than other areas and it’s the important module of coal chemical industry in Northern Shaanxi [4]
There are a total of about 10 million tons of high pure CO2 capacity in Northern Shaanxi, of which Yanchang oilfield has been formed a huge capture scale that is early 400000t CO2, mid 700000 CO2 and forward 4 million tons CO2, this huge CO2 capture is the prerequisite for the development of CO2-EOR
Summary
CCUS (CO2 capture, utilization and storage) is a new technology, which has the potential of large-scale CO2 emission reduction, is expected to achieve low carbon utilization of fossil fuels, which is widely considered to be one of the important technologies to deal with global climate change and control greenhouse gas emissions [1]. There are more than 65 million tons CO2 for CO2-EOR each year in America, it increases more than 15 million tons oil [3]. CO2 pipeline construction and operation experience has been more than 40 years in America, which contains impurities CO2 pipeline’s experience is 20 years, CO2 pipeline transportation in China has just started, building a large scale containing impurities CO2 pipeline and ensuring safety and stable operation, the research of CO2 quality is the first step
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