Materials Science
Coke Decomposition Kinetic Model of Spent Hydrodesulfurization Catalysts

Aymen F. Zween; Zaidoon M. Shakor; Bashir Y. Sherhan

Volume 4, Issue 4 , December 2024, , Page 29-46

https://doi.org/10.53293/jasn.2024.7465.1305

Abstract
  Recycling residue hydrodesulfurization (HDS) catalysts is essential due to frequent deactivation. Petroleum coke's high ignition temperature and complex combustion behavior stem from its graphite-like structure and low volatile matter. This study investigates petroleum coke combustion and oxidation kinetics ...  Read More ...

Materials Science
Study of the Mechanical and Thermal Properties of Refractory Mortars from Kaolin and Bentonite

Faten Hasan Gata; ENAS MHUI

Volume 2, Issue 1 , March 2022, , Page 69-79

https://doi.org/10.53293/jasn.2021.3743.1039

Abstract
  In this paper, Mortar was prepared from medium alumina refractory grog, bricks crashed as a mean material to a particular size, and Iraqi raw (kaolin or bentonite) as binding materials. Refractory bricks were crushed, milled, then sieved to three particle sizes: fine as (1.18 >fine> 0) mm, medium ...  Read More ...