SUPER-CLEAN COAL PRODUCTION FROM TURKISH BITUMINOUS COAL

Date

1994-07-01

Author

OZBAYOGLU, G
MAMUREKLI, M

Metadata

Show full item record

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Item Usage Stats

32
views

0
downloads

The possibility of producing super-clean coal from Zonguldak bituminous coal by heavy medium separation and flotation techniques was investigated. The coal sample used was a - 50 mm + 18 mm size jig concentrate from the Central Washery of Zonguldak. It was composed of 12.11% ash and 0.41 % total sulfur. The vitrain band of the same coal contained 3.28% ash and 0.22% total sulfur. By applying a two-step heavy medium separation, it was possible to reduce the ash content from 12.11% to 4.00%. Additional cleaning to less than 3.0% ash was carried out by flotation. To determine the optimum flotation conditions required for the production of super-clean coal, the effects of different types of frothers, pH and collector dosage were studied. The optimum result was obtained using 170 g/t kerosene and 160 g/t MIBC. The investigation showed that it was possible to produce a coal containing 2.16% ash and 0.42% total sulfur from Zonguldak bituminous coals.

Subject Keywords

Fuel Technology, Organic Chemistry, Energy Engineering and Power Technology, General Chemical Engineering

URI

https://hdl.handle.net/11511/65295

Journal

FUEL

DOI

https://doi.org/10.1016/0016-2361(94)90263-1

Collections

Department of Mining Engineering, Article

Suggestions

OpenMETU
Core

Influence of coal briquette size on the combustion kinetics Altun, Naci Emre; Bagci, AS (Elsevier BV, 2004-08-15) In this study, the effects of one of the most important parameters in coal briquetting process, the briquette size, on the combustion behaviour of coal briquettes were determined from the view of combustion kinetics, i.e. their liability to ignite and combust. Effect of size on the combustion kinetics was treated by two different approaches. The first one consists of combustion kinetics experiments with briquettes of increasing sizes, thus of expanding volumes. In the second phase, briquette dimensions were...
Comparison of single particle combustion behaviours of raw and torrefied biomass with Turkish lignites Magalhaes, Duarte; Panahi, Aidin; Kazanç Özerinç, Feyza; Levendis, Yiannis A. (Elsevier BV, 2019-04-01) This study investigated the combustion behaviour of single pulverized biomass and lignite coal particles under high temperature-high heating rate conditions. Selected fuels included three important agricultural residues in Turkey (olive residue, almond shell, and hazelnut shell), and two lignite coals from the regions of Tuncbilek and Soma in Turkey. Biomass fuels were either raw or torrefied at 275 degrees C for 30 min in nitrogen. The biomass fuels were sieved to a size cut of 212-300 mu m, and the coals ...
Effect of pressure on combustion kinetics of heavy oils Bağcı, Ali Suat (Informa UK Limited, 2005-07-01) In this study, 16 experiments were conducted to study the effects of pressure on crude oil oxidation in limestone medium. Karakus (29 degrees API), Beykan (32 degrees API), Bati Raman (12 degrees API), Camurlu ( 12 degrees API), Adiyaman (26 degrees API), Garzan (28 degrees API) and Raman (18 degrees API) crude oil from Turkish oil fields were used. The mixture of limestone and the crude oil was subjected to a controlled heating schedule under a constant flow rate of air. The produced gas was analyzed for i...
Microwave heating of coal for enhanced magnetic removal of pyrite Uslu, T; Atalay, U (Elsevier BV, 2004-01-15) Amenability of Askale coal to desulfinization by magnetic separation following microwave heating was investigated. The coal was subjected to magnetic separation at 2 T following the treatment in a microwave oven at 850-W power and 2.45-GHz frequency. The increase in magnetic property by microwave heating at 850 W and 2.45 GHz was not sufficient to enhance the removal of considerable amount pyritic sulfur from the coal by magnetic separation at 2 T. Pyritic sulfur content was reduced by 37.46%. With the addi...
ELECTROKINETICS OF OXIDIZED COAL SARIKAYA, M; OZBAYOGLU, G (Elsevier BV; 1990-01-01) Electrokinetic measurements were carried out in order to determine the properties of oxidized coal surfaces over a wide pH range both in the presence and absence of various metal ions and flotation collectors. It was found that polyvalent cations, such as Fe++, Fe+++ and Al+++ decreased the zeta potential to zero and then reversed the charge. In the presence of cationic collectors, the negative value of zeta potential of oxidized coal was driven positive, below 9.3 to 10.9 depending on the type and concentr...

Citation Formats

G. OZBAYOGLU and M. MAMUREKLI, “SUPER-CLEAN COAL PRODUCTION FROM TURKISH BITUMINOUS COAL,” FUEL, pp. 1221–1223, 1994, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/65295.