✦ LIBER ✦

New chemical structural features of coal. The structure of coal products

✍ Scribed by Ben M. Benjamin; Emily C. Douglas

Publisher: Elsevier Science
Year: 1986
Tongue: English
Weight: 561 KB
Volume: 65
Category: Article
ISSN: 0016-2361
DOI: 10.1016/0016-2361(86)90277-2

No coin nor oath required. For personal study only.

📜 SIMILAR VOLUMES

New chemical structural features of coal

✍ Ben M. Benjamin; Emily C. Douglas; Domenic M. Canonico 📂 Article 📅 1984 🏛 Elsevier Science 🌐 English ⚖ 377 KB

An adaptation of the transalkylation reaction provides a means for cleaving alkyl substituents off of the aromatic portions of coal as well as extracting aliphatic connecting groups from between aromatic clusters. Using reasonably low concentrations of acid catalysts, the groups are transferred to a

Chemical structure of Wyodak coal

✍ N.C. Deno; Barbara A. Greigger; A.Daniel Jones; Walter G. Rakitsky; Karen Ann Sm 📂 Article 📅 1980 🏛 Elsevier Science 🌐 English ⚖ 140 KB

The chemical structure of a sub-bituminous coal from the Wyodak seam, Wyoming, has been investigated using the technique of per TFA oxidative degradation. The relative amounts of products differ markedly from those from a typical bituminous coal (Illinois No, 6 seam, Monterey mine).

Molecular components of coal and coal st

Molecular components of coal and coal structure

✍ Danuta Bodzek; Anna Marzec 📂 Article 📅 1981 🏛 Elsevier Science 🌐 English ⚖ 458 KB

A high-volatile bituminous coal was extracted at room temperature by various organic solvents. The yields of the extracts ranged from 4.5 wt% daf (ethanol/benzene extract) to 38 wt% daf (pyridine/ethylenediamine extract). The extracts were analysed by FI mass spectrometry; the volatile part (75-80 w

Pressure and temperature effect on the m

Pressure and temperature effect on the mean chemical structure of coal hydrogenolysis product

✍ Koji Ouchi; Tsukasa Chicada; Hironori Itoh 📂 Article 📅 1979 🏛 Elsevier Science 🌐 English ⚖ 606 KB

The hydrogenolysis reaction of coal using red-mud and sulphur as catalyst has been carried out at 400 and 45O"C, 10 MPa or 3 MPa of hydrogen, and 3 MPa of hydrogen plus 7 MPa of nitrogen. The mean chemical structures of the asphaltenes and oils produced show that at first the portion with relatively

New method for elucidating the structure

New method for elucidating the structures of coal

✍ Norman C. Deno; Barbara A. Greigger; Stephen G. Stroud 📂 Article 📅 1978 🏛 Elsevier Science 🌐 English ⚖ 514 KB

Skeletal structure of coal

✍ Gora Ghosh; Ashim Banerjee; Bhupendra K. Mazumdar 📂 Article 📅 1975 🏛 Elsevier Science 🌐 English ⚖ 275 KB