Article Per Year (5 Year)
p-Index From 2021 - 2026
0.562
P-Index
This Author published in this journals
All Journal Journal of Chemical Engineering Research Progress
Jong Nam Kim
Department of Chemical Engineering, Hamhung Branch of Science University, Prof. Jong Nam, Hamhung, DPRK 99903
Chemical Engineering, Chemistry & Bioengineering Energy Engineering Materials Science & Nanotechnology

Published : 3 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 3 Documents
Search

 1 
A Comprehensive State Monitoring System for Lime Shaft Kilns Based on Fuzzy Logic and Improved GMDH Algorithm Jong Nam Kim; Hong Yon Han; Chun Bae Ma; Yong So; Ryong Hyok Ri; Chung Hyon Hwang
Journal of Chemical Engineering Research Progress 2026: JCERP, Volume 3 Issue 2 Year 2026 (December) (Issue in Progress)
Publisher : UPT Laboratorium Terpadu, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.9767/jcerp.20741

Abstract

Efficient and environmentally friendly operation of lime shaft kilns requires accurate real-time monitoring of calcination zone status and flue gas composition. This paper concerns on an integrated monitoring system that combines fuzzy logic and an improved Group Method of Data Handling (GMDH) algorithm. First, 18-rule-based fuzzy logic diagnostic model identifies the operational state of the calcination zone with 94.2% accuracy. Second, an enhanced GMDH algorithm with novel data preprocessing and feature selection mechanisms serves as a soft sensor for predicting CO₂, CO, and O₂ concentrations. Experimental results from a 10,000-ton/year vertical lime kiln demonstrate that the improved GMDH achieves mean absolute errors of 1.5% for CO₂, 2.9% for CO, and 3.0% for O₂, representing a 43.2% improvement over conventional methods. Field application shows 8.3% reduction in fuel consumption and 15.2% reduction in CO emissions, confirming the system's practical value for industrial process optimization. Copyright © 2026 by Authors, Published by Universitas Diponegoro and BCREC Publishing Group. This is an open access article under the CC BY-SA License (https://creativecommons.org/licenses/by-sa/4.0).
The Application of Transition Metal Nitride Catalyst in the HDO Reaction of Lignin and Its Model Compounds Chang Sok Kim; Jong Nam Kim; Hak Myong Song; Hyon Il Do; Se Kwon O
Journal of Chemical Engineering Research Progress 2026: JCERP, Volume 3 Issue 2 Year 2026 (December) (Issue in Progress)
Publisher : UPT Laboratorium Terpadu, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.9767/jcerp.20762

Abstract

As the only abundant and renewable non-fossil resource that provides aromatic compounds in nature, lignin is an important raw material for the production of new energy and high-value chemicals. Transition metal nitride is widely used as a good hydrodeoxygenation (HDO) catalyst in the catalytic conversion reaction of lignin and its model compounds thanks to its crystal structure and properties, and good hydrodeoxygenation activity similar to noble metals. This paper reviewed the application of transition metal nitride catalysts in catalytic conversion of lignin and its model compounds. And the paper comprehensively analyzed the components of transition metal nitride catalyst, the nitriding method and the molar hourly space velocities (MHSV) in the preparation process, the carrier, the addition of other metals, the influence of reaction conditions on the catalytic activity and the reaction mechanism. In addition, the paper discussed the problems arising in applying the transition metal nitride catalysts in the reaction of lignin and its model compound HDO were proposed, and proposed the ways to develop nitride catalysts with higher catalytic performance and wider application prospect. Copyright © 2026 by Authors, Published by Universitas Diponegoro and BCREC Publishing Group. This is an open access article under the CC BY-SA License (https://creativecommons.org/licenses/by-sa/4.0).
Selective Synthesis of Glycerol Monostearate by Glycerol Borate Kyong Il Choe; Chol Min Ri; Jong Nam Kim; Rak Won Paek
Journal of Chemical Engineering Research Progress 2026: JCERP, Volume 3 Issue 2 Year 2026 (December) (Issue in Progress)
Publisher : UPT Laboratorium Terpadu, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.9767/jcerp.20763

Abstract

Glycerol monostearate, a widely used nonionic surfactant in food, pharmaceutical, and cosmetic industries. However, current synthesis methods such as molecular distillation and functional group protection suffer from high equipment costs, complex post-processing, or low product purity. In this study, a boric acid ester protection method was developed to selectively synthesize high-purity glycerol monostearate. Quantum chemical calculations (AM1 method) and Monte Carlo simulations were used to predict optimal reaction conditions. Bisglyceride borate was synthesized and characterized by FT-IR, then esterified with stearic acid, and hydrolyzed to yield the final product. The optimal conditions were: glycerol-to-boric acid molar ratio 2:1, 115 °C with toluene as azeotropic agent, 70 min (bisglyceride borate conversion: 96.0%). The final product purity was >95% by HPLC, with melting point 61–63 °C and HLB value 3.8. This method offers mild conditions, simple post-processing, and high purity, making it industrially promising. Copyright © 2026 by Authors, Published by Universitas Diponegoro and BCREC Publishing Group. This is an open access article under the CC BY-SA License (https://creativecommons.org/licenses/by-sa/4.0).
Co-Authors Chang Sok Kim Chol Min Ri Chun Bae Ma Chung Hyon Hwang Hak Myong Song Hong Yon Han Hyon Il Do Kyong Il Choe Rak Won Paek Ryong Hyok Ri Se Kwon O Yong So