Production of Clean Fuels by Catalytic Hydrotreating a Low Temperature Coal Tar Distillate in a Pilot-Scale Reactor
| Autor: | Meng Qinghua, Xiangping Zhang, Dong Li, Baoqi Ma, Wenhong Li, Menglong Niu, Qiucheng Zhou, Wengang Cui |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Carbonization
Chemistry business.industry 020209 energy General Chemical Engineering Energy Engineering and Power Technology 02 engineering and technology Pulp and paper industry Coal liquefaction Dry distillation complex mixtures Liquid fuel Fuel Technology otorhinolaryngologic diseases 0202 electrical engineering electronic engineering information engineering medicine Coal gasification Coal Coal tar business Hydrodesulfurization medicine.drug |
| Zdroj: | Energy & Fuels. 31:11495-11508 |
| ISSN: | 1520-5029 0887-0624 |
| DOI: | 10.1021/acs.energyfuels.7b01971 |
| Popis: | China is one of the largest coal producers in the world and abundant coal tar is produced from coal gasification and carbonization every year. Thus, catalytic hydrotreating coal tar for the production of clean fuel has received substantial attention. In this work, clean liquid fuel was obtained from the catalytic hydrogenation of a low temperature coal tar (LTCT) distillate in a four-stage fixed bed reactor with various catalyst combinations on the pilot scale. Effects of dominant hydrotreating parameters, reaction temperature (290–390 °C), H2 pressure (8–15 MPa), and liquid hourly space velocity (0.2–0.6 h–1), on hydrotreating activity, the intermediate and final products, and chemical components of the hydrogenated oils were evaluated. Meanwhile, a possible reaction scheme for the conversion of alkyl-naphthalenes (AN) and phenols in feedstock was probed. The results showed that the four-stage reacting system was capable of removing sulfur and nitrogen to less than 10 μg/g. Furthermore, after hydrotreati... |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|