Contents

Petroleum Chemistry

Vol. 65, No. 5, 2025

RESEARCH PAPER

Characterizing Heat Transfer Performance in a Slurry Bubble Column Reactor Equipped with a Real Heat Exchanger

Dalia S. Makki, Hasan Sh. Majdi, Amer A. Abdulrahman, Abbas J. Sultan, Bashar J. Kadhim, and Muthanna H. Al-Dahhan p. 507  abstract

Functionalization of Powdered Walnut Shell with Acid Activation for Congo Red Dye Removal

Abdul-Azeez H. Mohammed, and Haneen A. Kh. Karaghool p. 520  abstract

Ultrasonic Bubble Treatment of Heavy Oil as a Green Technology

Dina Harith Shaker, Raheek Ismael Ibrahim, Manal Kadhim Oudah, and Hussain H. Al-Kayiem p. 530  abstract

Analyze the Flexible Property for Pavements with Various Axle Loads and Different Reinforcement Layers

Meina Subhi Jawad, Ahmed Subhi Abdulijabbar, and Makki Kamel Mohsen p. 537  abstract

Enhancing Drilling Efficiency: A Comprehensive Review of Bit Hydraulic Optimization in Rotary Drilling Operations

Dena Mahmood, Akhmal Sidek, Kenny Anak Ganie, and Nada S. Al-Zubaidi p. 550  abstract

Demulsification of Basra Crude Oil using Chemical Demulsifier and Ultrasonic

Luma H. Mahmoud, Rabab Raheem, Husham Mohammed Al-Tameemi, and Adnan A. AbdulRazak p. 558  abstract

Formation of Titanium Dioxide by Hydrolysis Catalyst: Effect of Calcination Temperature on Microstructure Characteristics of Polymeric Nanocomposites

Rasheed Lateef Jawad, and Raghad Subhi Abbas p. 566  abstract

Experimental Investigation of Heat Transfer Behavior in Spouted Bed Reactors under Different Operating Conditions

Hasan A. Abdulwahab, Abbas J. Sultan, Amer A. Abdulrahman, Hasan Sh. Majdi, Haydar A. S. Aljaafari, Zahraa W. Hasan, Laith S. Sabri, Bashar J. Kadhim, Jamal M. Ali, and Muthanna H. Al-Dahhan p. 576  abstract

Zinc Removal from Wastewater by Emulsion Liquid Membrane Technique: Utilizing Response Surface Methodology to Improve Optimization and Analyze Data

Ahmed Salah Al-Shati, Hussein Hantoosh Alaydamee, Abbas J. Sultan, Zahraa W. Hasan, Bashar J. Kadhim, Laith S. Sabri, and Hasan Sh. Majdi p. 589  abstract

Using Gaviscon Expired Drug as Corrosion Inhibitor in Acidic Solution to Reduce Corrosion in Carbon Steel

Shaimaa A. Naser, Aya A. Shahir, Diyar Abdul Kareem, Hadeer M. Aljoubory, Haneen A. Basim, and Rejwan Kh. Ibrahim p. 600  abstract

Jet Impingement Heat Transfer on Heated Block by Using Different Nozzle Arrangements

Rafid Abdulrazaq Jabr, Kadhum Audaa Jehhef, and Salah H. Abid Aun p. 609  abstract

Effect of Cathode Electrode Material and Voltage on the Production of Hydrogen Gas through the Chlor-Alkali Electrolysis Process of Brine Solution

Ahmed R. Noori, Mohammed A. Ahmed, Ali M. Resen, and Muna K. Abbass p. 624  abstract