Syntheses of Alkylated Aromatic Model Compounds To Facilitate Mass Spectral Characterization of Heavy Oils, Resids, and Bitumens
| Autor: | Kuangnan Qian, M. A. Francisco, Larry A. Green, Cathleen Yung, Kathleen E. Edwards, Birbal Chawla, Rodrigo Gobbo Garcia |
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| Rok vydání: | 2011 |
| Předmět: | |
| Zdroj: | Energy & Fuels. 25:4600-4605 |
| ISSN: | 1520-5029 0887-0624 |
| Popis: | This study summarizes the synthesis of model compounds. Long-chain alkyl multi-ring heteroaromatics are the synthetic targets. These compounds are considered analogues of similar compounds that are present at abundant levels in petroleum crude oils, resids, heavy oils, deasphalted oils, asphaltenes, and bitumens, and they are responsible for coke formation and other processing problems. Model compounds are not readily available. Some models have been synthesized to approximate the physical and chemical behavior of real asphaltenes, but the structures are not completely consistent with the current structural understanding. The composition of petroleum crudes, resids, heavy oils, and bitumens has been a subject of intense research for years. The structure of these coke-forming molecules is generally thought to be an aromatic core of critical molecular weight and number of fused aromatic rings. This critical ring number is around 4–5 fused aromatic rings, which bear alkyl side chains and heteroatoms. This ge... |
| Databáze: | OpenAIRE |
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