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水性中间相制备研究(Ⅱ)──混酸(HNO_3/H_2SO_4)氧化过程动力学研究 被引量:3
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作者 余高奇 李轩科 +3 位作者 刘秀然 马育国 沈士德 刘朗 《炭素》 2000年第4期28-32,共5页
采用混酸(HNO3/H2SO4)氧化石油生焦,制备水性中间相;重点考察温度对氧化速度的影响。利用付立叶红外光谱对石油生焦、水性中间相和残渣进行了表征;结果表明:扩散是石油生焦氧化的速率控制步骤,其表现活化能为3.9k... 采用混酸(HNO3/H2SO4)氧化石油生焦,制备水性中间相;重点考察温度对氧化速度的影响。利用付立叶红外光谱对石油生焦、水性中间相和残渣进行了表征;结果表明:扩散是石油生焦氧化的速率控制步骤,其表现活化能为3.9kJ·mol-1。 展开更多
关键词 水性中间相 氧化 表征 动力学 混酸 石油生焦
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The New-Generation Technology for Making Petroleum Needle Coke
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作者 SiftChangzhi ShenHaiping +1 位作者 LongJun XieChangjiang 《China Petroleum Processing & Petrochemical Technology》 SCIE CAS 2003年第3期23-27,共5页
The current technology for producing the petroleum needle coke is apt to cause overflow of feedstock from the coke drums, instability in operation of coking unit, low mechanical strength of petroleum coke, and high pe... The current technology for producing the petroleum needle coke is apt to cause overflow of feedstock from the coke drums, instability in operation of coking unit, low mechanical strength of petroleum coke, and high percentage of coke powder, leading to difficulties in improving the overall quality of needle coke. Therefore, we have developed a new technology for producing the needle coke,featuring the manipulation of temperature range in a narrow scale at high pressure coupled with feedstock alternations. This new kind of technology has been successfully applied in a 60kt/a commercial coking unit. Provided that demand for the feedstock quality is satisfied, petroleum needle coke meeting the international quality standard can be manufactured using RIPP's technology for producing petroleum needle coke. 展开更多
关键词 needle coke delayed coking operating pressure varying temperature
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