.png){kind=icon}
.png){kind=icon}
Return
Catalyst Effects on the Pyrolysis Kinetics of Major Textile Wastes: Cotton, Polyester, and Nylon
.png){kind=icon}
OA
AI
P
M
S
T
P
X
DOI：10.3390/chemengineering10050065.png)
.png){kind=icon}
Original request for help.png){kind=icon}
Share.png){kind=icon}
Save
Abstract
En 中文
This study examines how catalysts and operating conditions enhance the pyrolysis of textile wastes, supporting their use as a viable feedstock for waste-to-energy recycling. Pyrolysis of three common textile wastes—cotton, polyester, and nylon—was studied using thermogravimetric analysis (TGA). Experiments were conducted at heating rates of 5, 10, 15, and 20 °C/min, both with and without catalysts, including K2CO3, ZnO, KOH, CaO, and natural zeolite. The results showed that cotton decomposes at significantly lower temperatures than polyester and nylon, with a peak decomposition rate at 361.7 °C compared to 437.9 °C for polyester and 459.8 °C for nylon. Reaction kinetics were analyzed using three established models: Kissinger–Akahira–Sunose (KAS), Flynn–Wall–Ozawa (FWO), and Kissinger. Among the materials studied, polyester exhibited the lowest activation energy (184.8 kJ/mol), while cotton and nylon showed higher values (241.1 and 236.2 kJ/mol, respectively). Catalyst performance varied by material. Potassium carbonate was particularly effective for cotton, increasing the weight loss rate and reaction rate constant. ZnO significantly reduced the activation energy for nylon. Although catalysts generally enhanced reaction rates, many also increased activation energy. This increase in activation energy and collision frequency suggests that catalytic pyrolysis becomes more temperature-sensitive while achieving higher reaction turnover frequencies.
Keywords:
pyrolysis
textile waste
catalysts
kinetics
thermochemical decomposition
Journal
IF:
3.4
Papers:
328
Citations:
1.6K
Organization
Cited Papers