Kinetic analysis of CO2 gasification of corn straw

Wang, Yu; Ge, Zhiwei; Shang, Fei; Zhou, Chenchen; Guo, Shenghui; Ren, Changyifan

doi:10.1016/j.renene.2022.12.074

Cited by 20 publications

(3 citation statements)

References 31 publications

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“…To eliminate the influence of moisture content in the material on the experimental outcomes, we conducted a pretreatment operation of vacuum drying by using a vacuum-drying oven. The dried straws were ground with a grinder to minimize the effect of shape on heat transfer [20]. We selected 4-6 mg of each straw as experimental material.…”

Section: Raw Materialsmentioning

confidence: 99%

“…Lu Q et al studied the effect of a Fe-Ni-Ca catalyst on wheat straw pyrolysis at heating rates of 5, 10, and 20 • C/min [19]. Wang Y et al investigated the pyrolysis characteristics of corn straw gasification at heating rates of 10, 15, 20, and 30 K/min [20]. The study demonstrates that altering the heating rate has a direct impact on the pyrolysis features of the material.…”

Section: Introductionmentioning

confidence: 99%

“…Although Henan is a major agricultural province in China, there is limited research on the straw output in this area. Therefore, this paper examines the effects of different heating rates (10,20,30,40, and 50 • C/min) on the pyrolysis of four types of agricultural straw (wheat, peanut, corn, and rice) under the condition of air environment. By calculating the activation energy of pyrolysis of each straw, and analyzing the pyrolysis characteristics of each straw, it was possible to provide a reasonable basis for the subsequent industrial application.…”

Section: Introductionmentioning

confidence: 99%

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Pyrolysis Behavior and Kinetics of Typical Crop Straw in Henan Province at Different Heating Rates

Hu,

Hou,

Lan

et al. 2023

Processes

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Straw, which is characterized by its low cost, large quantity, and rich supply of biomass energy, is often converted into energy that can be utilized in industrial production through pyrolysis technology. This paper examines the pyrolysis experiments of four kinds of straw (rice, wheat, peanut, and corn) from the Henan Province of China, conducted in an air environment with varying temperature-rise rates. Based on the experimental results, an analysis was conducted on the effect of the rate of temperature rise on the degree of straw pyrolysis and the pyrolysis characteristics of each type of straw. The activation energies of the pyrolysis reactions were calculated utilizing the Kissinger–Akahira–Sunose (KAS), Flynn–Wall–Ozawa (FWO), and Starink methods. It was concluded that the pyrolysis process of all four types of straw could roughly be classified into three stages: dehydration and drying stage, volatile release stage, and carbonization stage. Among the four types of straw evaluated, rice straw exhibited the most favorable combustion performance, while wheat straw demonstrated the best pyrolysis effect. Increasing the heating rate resulted in a pronounced thermal hysteresis effect during the straw’s pyrolysis, as evidenced by the TG and DTG curves shifting toward higher temperatures. The reaction speed increased as the heating rate increased, and the amount of residual carbon displayed an upward trend.

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Section: Raw Materialsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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