Carbonization characteristics of ethylene tar narrow fractions

Yu, Yangyang; Wei, Qiang; Wang, Zhen; Jiao, Shouhui; Qiu, Zhipeng; Wang, Lili; Liu, He; Chen, Kun; Guo, Aijun

doi:10.1016/s1872-5813(21)60151-2

Cited by 1 publication

(2 citation statements)

References 12 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…It is known that ET contains a significant amount of various aromatic compounds and can be used as a raw material for the production of bi-and polycyclic hydrocarbons, as well as for the production of high added-value products [5][6][7]. The complexity of the hydrocarbon composition and the high content of technogenic asphaltenes and olefins restricts the production of new materials from ET [1][2][3][8][9][10][11][12]. The asphaltenes content in ET can reach 22 wt.…”

Section: Introductionmentioning

confidence: 99%

“…% and they are highly prone to carbonization, which hampers the production of high-quality carbon materials through traditional thermal processes. Thus, the authors of [8,10,12] showed that the presence of asphaltenes in ET leads to the formation of an irregular mosaic texture of needle coke, and their removal promotes the development of the mesophase and improves the quality of the product. In the above-mentioned works, asphaltenes are considered only as an undesirable component of ET, and there is no information in the literature on the study of ET asphaltenes as raw materials for the production of valuable products.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Asphaltenes from Ethylene Tar as a Potential Raw Material to Obtain High Value-Added Products

Borisova,

Minzagirova,

Shabalin

et al. 2023

Energies

View full text Add to dashboard Cite

Ethylene tar is the main byproduct of ethylene synthesis obtained via pyrolysis of hydrocarbon feedstock. With the growing demand for ethylene, the efficient use of ethylene tar is of great importance from both an economic and an ecological point of view. It contains significant amounts of polycyclic aromatic hydrocarbons, which can be designated as technogenic asphaltenes. Such polyaromatic structures can be isolated and used as a synthetic platform for modification and molecular engineering, similar to petroleum asphaltenes. In this study, the possibility of modifying technogenic asphaltenes by oxidizing reagents used previously for petroleum asphaltenes was shown for the first time. Technogenic asphaltenes contain significantly fewer heteroatomic structures and have a lower molecular weight compared to petroleum asphaltenes. The compositional features of technogenic asphaltenes ensure deeper oxidation with the formation of various O-containing products, whose properties can vary significantly depending on the reaction conditions. At the same time, the general patterns of oxidative modification of technogenic asphaltenes correspond to the oxidation processes of petroleum asphaltenes. The modification products obtained in this way can be used as sorbents, catalysts, fillers for polymers, adhesive additives for road bitumens, etc.

show abstract