Effect of characteristics of inferior residues on thermal coke induction periods

JIAO Shou-hui; LIN Xiang-qin; GUO Ai-jun; CHEN Kun; WANG Zong-xian; TONG Jia-jun; GENG Yu-xuan; LI Ruo-meng; LIU Qing-hao

Volume 45 Issue 2

Feb. 2017

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Article Navigation > Journal of Fuel Chemistry and Technology > 2017 > 45(2): 165-171

JIAO Shou-hui, LIN Xiang-qin, GUO Ai-jun, CHEN Kun, WANG Zong-xian, TONG Jia-jun, GENG Yu-xuan, LI Ruo-meng, LIU Qing-hao. Effect of characteristics of inferior residues on thermal coke induction periods[J]. Journal of Fuel Chemistry and Technology, 2017, 45(2): 165-171.

Citation:

JIAO Shou-hui, LIN Xiang-qin, GUO Ai-jun, CHEN Kun, WANG Zong-xian, TONG Jia-jun, GENG Yu-xuan, LI Ruo-meng, LIU Qing-hao. Effect of characteristics of inferior residues on thermal coke induction periods[J]. Journal of Fuel Chemistry and Technology, 2017, 45(2): 165-171.

Citation:

JIAO Shou-hui, LIN Xiang-qin, GUO Ai-jun, CHEN Kun, WANG Zong-xian, TONG Jia-jun, GENG Yu-xuan, LI Ruo-meng, LIU Qing-hao. Effect of characteristics of inferior residues on thermal coke induction periods[J]. Journal of Fuel Chemistry and Technology, 2017, 45(2): 165-171.

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Effect of characteristics of inferior residues on thermal coke induction periods

1.
State Key Laboratory of Heavy Oil, College of Chemical Engineering, China University of Petroleum(East China), Qingdao 266580, China;
2.
Shandong Haicheng Petrochemical Engineering Design CO., LTD, Zibo 255400, China

Funds:

National Natural Science Foundation of China U1362101

Provincial Natural Science Foundation of Shandong ZR2014BQ030

More Information

Corresponding author: Tel:0532-86980607,Fax:0532-86981787,E-mail:ajguo@upc.edu.cn
Received Date: 2016-10-14
Rev Recd Date: 2016-12-08

Available Online: 2021-01-23

Publish Date: 2017-02-10

Abstract

Abstract

Using 4 inferior residual oils as raw materials, the effect of feedstock properties on the characteristics of coke formation during initial thermal conversion process was studied.The results show that the influence for coke induction period of different oils affected by temperature can be measured with the sensitivity parameters.The shorter the coke induction period of the residue, the bigger the sensitivity parameter.The coke induction period has a higher decrease rate with the reaction temperature rising.The coke formation property generally depends on feedstock's basic properties, and the influence of various properties of inferior residual oils on coke formation is different under the same reaction conditions.Carbon residue, ash, relative molecular mass, asphaltene precipitation onset point and stability parameter have strong correlations with the coke induction period, especially for the colloidal stability of oil reflected by asphaltene precipitation onset point and stability parameter.The colloidal stability of the inferior residual oils is related to the coke formation characteristics.The worse the stability of the residue, the more likely the coke is to form.The coke forming process is a gradual destruction of the colloid system during thermal reaction.
- inferior residue,
- delayed coking,
- characteristic,
- coke induction period,
- colloidal stability

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References(15)

References

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