𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Macerals in bituminous coals and the coking process: Part 1: Effect of basic coal properties on the process of thermal degradation

✍ Scribed by Miroslav Košina; Petr Heppner

Publisher
Elsevier Science
Year
1984
Tongue
English
Weight
990 KB
Volume
63
Category
Article
ISSN
0016-2361

No coin nor oath required. For personal study only.

✦ Synopsis

Bituminous coals produced in the Ostrava-KarvinB coal basin show considerable variation in their maceral composition and rank. In order to explain the significance of the petrographic composition, structure and chemical parameters in coal degradation processes, a large number of coal samples was investigated. From the relationships obtained, the behaviour of macerals during these processes is discussed. It is found that isometamorphic vitrinites are characterized by a distinctive behaviour affected to a first approximation by the atomic ratios C/H and C/O. Inertinite, despite its occasional significantly higher volatile matter, does not yield an appreciable amount of fused material.

📜 SIMILAR VOLUMES

Macerals in bituminous coals and the cok
Macerals in bituminous coals and the coking process: 2. Coal mass properties and coke mechanical properties
✍ Miroslav Kos̆ina; Petr Heppner 📂 Article 📅 1985 🏛 Elsevier Science 🌐 English ⚖ 710 KB

Bituminous coals produced in the Ostrava-Karvina coal basin show considerable variation in their maceral composition, vitrinite reflectance and fluidity. There is a close association of the latter with the H/O atomic ratio expressing the different chemico-structural properties of vitrinites of lower

Investigations on the processing of oil
Investigations on the processing of oil vacuum residue and its mixtures with coal and coal tars: Part 1. Primary conversion of crude materials
✍ Anna Tokarska 📂 Article 📅 1996 🏛 Elsevier Science 🌐 English ⚖ 593 KB

Complex investigations into the possibility of extending the basis for crude materials for liquid fuels to residues from vacuum distillation of oil (VR) were performed. Mixtures of VR with coal and coal tars were also tested. The raw materials were processed by rapid pyrolysis or delayed coking to o

Carbonization of coal-tar pitch under co
Carbonization of coal-tar pitch under controlled atmosphere—Part II: Effect of temperature and pressure on the electrical property evolution of the formed green coke
✍ M. Elalaoui; V. Krebs; J.F. Mareche; G. Furdin; R. Bertau 📂 Article 📅 1995 🏛 Elsevier Science 🌐 English ⚖ 372 KB

The carbonization of an industrial coal-tar pitch was studied by using a tube bomb, as a function of carbonization temperature (SSOY-SSOOC) and inert gas pressure (l-20 bar), and resultant green cokes were evaluated according to electrical resistivity determined using the Van der Pauw method. At 55O

The role of m-phenylenedimaleimide in re
The role of m-phenylenedimaleimide in reactive processing of poly(propylene)/magnesium hydroxide composites. 1. Effect of processing temperature and composite formulation on mechanical properties
✍ Khunova, V. ;Liauw, C. M. ;Alexy, P. ;Sain, M. M. 📂 Article 📅 1999 🏛 John Wiley and Sons 🌐 English ⚖ 105 KB 👁 3 views

The role of the interface modifier, m-phenylenedimaleimide (BMI), and a lubricant (a mixture of fatty acid amides and esters) in the reactive processing of poly(propylene)/magnesium hydroxide-based composites has been studied. In this investigation process a three-factorial experimental design has b