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2. Numerical simulation of crushed coal pressurized slagging gasification

Author

ZHANG Lihe, BAI Yanping, XU Deping, ZHANG Haiyong, XU Zhengang, and WANG Yonggang

Subjects
coal gasification, crushed coal slag, gasification equilibrium temperature, combustion raceway, bed structure, Engineering geology. Rock mechanics. Soil mechanics. Underground construction, TA703-712, Mining engineering. Metallurgy, TN1-997
Abstract

The Crushed Coal Pressurized Slagging Gasification (British Gas-Lurgi, BGL) renders the use of gates obsolete and changes from dry slag discharge to liquid slag discharge, significantly improving the gasification performance. This study aims to reveal the essential structural characteristics of BGL coal gasification to further improve the performance of gasification equipment. We established the thermodynamic equilibrium model, coal gasification dynamics model and Euler multiphase flow model via numerical simulation, and validated these models. The simulation results show that 1) compared with Lurgi coal gasification, the gasification equilibrium temperature increases from 795 ℃ (Lurgi gasifier) to 1 029 ℃, and the decomposition rate of water vapor increases from 32.66 % to 93.12 %. The maximum bed temperature increases from 1 110 ℃ to 1 837 ℃, much higher than the coal ash flow temperature (1 210 ℃). This improves the gasification intensity and ensures liquid slag discharge. 2) BGL coal gasification reaction is mainly completed in the lower part of the furnace, with only a small amount of water vapor participating in the shift reaction. CH4 in the crude gas mainly comes from coal pyrolysis. 3) The fluctuation of bed surge in gasifier enhances heat and mass transfer. 4) Nozzle Jet impacts and squeezes coal char particles, forming an ellipsoidal combustion raceway extending to the central area. This becomes an important functional unit of BGL gasification, realizing primary gas distribution and providing heat for gasification layer and slag pool. 5) The liquid slag in the slag pool whirls up and down, which is beneficial to reduce carbon residue in slag and ensure smooth slag discharge.

Published
2024
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6. Numerical analysis and research on coal pyrolysis characteristics in BGL gasification process

Author

Zhang Lihe, Xu Deping, Xu Zhengang, and Wang Yonggang

Subjects
bgl coal gasification, coal particle, pyrolysis, numerical simulation, Engineering geology. Rock mechanics. Soil mechanics. Underground construction, TA703-712, Mining engineering. Metallurgy, TN1-997
Abstract

Research on the patterns of the internal temperature change and volatile analysis on the law of coal particle pyrolysis are essential to optimizing the furnace structure and operating parameters, while further improves the economy of BGL coal gasification.Based on the analysis of BGL coal gasification pyrolysis process, this study established the coal particle pyrolysis model.The decoupling algorithm was sadopted in solving the model, in which the heat transfer model adopted the chasing method, the pyrolysis kinetic model adopted the fourth-order single-step push-up method, and the ambient temperature was calculated by the moving bed one-dimensional model.The rationality of the model was verified by experimental data in literature.The simulation results show that the final pyrolysis temperature of BGL coal gasification is higher, and the temperature gradient inside the particles changes greatly.The particle size is 10 mm, the calculated final pyrolysis temperature is 1 372 K, and the calculated peak temperature difference between the surface and center of coal particles is 338 K. Taking the particle size of 40 mm, the corresponding calculated values are 1 412 K and 381 K respectively; The process of coal particle volatilization is similar to that of gas-solid non-catalytic condensation reaction, which proves that the coal pyrolysis process is controlled by heat transfer process.Pyrolysis kinetics is described by FZ general pyrolysis model, which has better adaptability than distributed activation energy model.When the moving bed one-dimensional model predicts the height of BGL coal gasification pyrolysis layer, the pyrolysis evaporation model is superior to FZ general pyrolysis model.The predicted height of pyrolysis layer is 0.616 5 m, which is consistent with the operation of agitator.

Published
2023
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13. Supplementary Table S4 from Anlotinib in Locally Advanced or Metastatic Radioiodine-Refractory Differentiated Thyroid Carcinoma: A Randomized, Double-Blind, Multicenter Phase II Trial

Author

Chi, Yihebali, primary, Zheng, Xiangqian, primary, Zhang, Yuan, primary, Shi, Feng, primary, Cheng, Ying, primary, Guo, Zhuming, primary, Ge, Minghua, primary, Qin, Jianwu, primary, Zhang, Jiewu, primary, Li, Zhendong, primary, Zhou, Xiaohong, primary, Huang, Rui, primary, Chen, Xiaohong, primary, Liu, Hui, primary, Cheng, Ruochuan, primary, Xu, Zhengang, primary, Li, Dapeng, primary, Tang, Pingzhang, primary, and Gao, Ming, primary

Published
2023
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14. Supplementary Methods S1 from Anlotinib in Locally Advanced or Metastatic Radioiodine-Refractory Differentiated Thyroid Carcinoma: A Randomized, Double-Blind, Multicenter Phase II Trial

Author

Chi, Yihebali, primary, Zheng, Xiangqian, primary, Zhang, Yuan, primary, Shi, Feng, primary, Cheng, Ying, primary, Guo, Zhuming, primary, Ge, Minghua, primary, Qin, Jianwu, primary, Zhang, Jiewu, primary, Li, Zhendong, primary, Zhou, Xiaohong, primary, Huang, Rui, primary, Chen, Xiaohong, primary, Liu, Hui, primary, Cheng, Ruochuan, primary, Xu, Zhengang, primary, Li, Dapeng, primary, Tang, Pingzhang, primary, and Gao, Ming, primary

Published
2023
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15. Data from Anlotinib in Locally Advanced or Metastatic Radioiodine-Refractory Differentiated Thyroid Carcinoma: A Randomized, Double-Blind, Multicenter Phase II Trial

Author

Chi, Yihebali, primary, Zheng, Xiangqian, primary, Zhang, Yuan, primary, Shi, Feng, primary, Cheng, Ying, primary, Guo, Zhuming, primary, Ge, Minghua, primary, Qin, Jianwu, primary, Zhang, Jiewu, primary, Li, Zhendong, primary, Zhou, Xiaohong, primary, Huang, Rui, primary, Chen, Xiaohong, primary, Liu, Hui, primary, Cheng, Ruochuan, primary, Xu, Zhengang, primary, Li, Dapeng, primary, Tang, Pingzhang, primary, and Gao, Ming, primary

Published
2023
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16. Supplementary Figure S1 from Anlotinib in Locally Advanced or Metastatic Radioiodine-Refractory Differentiated Thyroid Carcinoma: A Randomized, Double-Blind, Multicenter Phase II Trial

Author

Chi, Yihebali, primary, Zheng, Xiangqian, primary, Zhang, Yuan, primary, Shi, Feng, primary, Cheng, Ying, primary, Guo, Zhuming, primary, Ge, Minghua, primary, Qin, Jianwu, primary, Zhang, Jiewu, primary, Li, Zhendong, primary, Zhou, Xiaohong, primary, Huang, Rui, primary, Chen, Xiaohong, primary, Liu, Hui, primary, Cheng, Ruochuan, primary, Xu, Zhengang, primary, Li, Dapeng, primary, Tang, Pingzhang, primary, and Gao, Ming, primary

Published
2023
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18. Anlotinib in Locally Advanced or Metastatic Radioiodine-Refractory Differentiated Thyroid Carcinoma: A Randomized, Double-Blind, Multicenter Phase II Trial

Author

Chi, Yihebali, primary, Zheng, Xiangqian, additional, Zhang, Yuan, additional, Shi, Feng, additional, Cheng, Ying, additional, Guo, Zhuming, additional, Ge, Minghua, additional, Qin, Jianwu, additional, Zhang, Jiewu, additional, Li, Zhendong, additional, Zhou, Xiaohong, additional, Huang, Rui, additional, Chen, Xiaohong, additional, Liu, Hui, additional, Cheng, Ruochuan, additional, Xu, Zhengang, additional, Li, Dapeng, additional, Tang, Pingzhang, additional, and Gao, Ming, additional

Published
2023
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21. Table S4 from Anlotinib in Locally Advanced or Metastatic Medullary Thyroid Carcinoma: A Randomized, Double-Blind Phase IIB Trial

Author

Li, Dapeng, primary, Chi, Yihebali, primary, Chen, Xiaohong, primary, Ge, Minghua, primary, Zhang, Yuan, primary, Guo, Zhuming, primary, Wang, Jun, primary, Chen, Jie, primary, Zhang, Jiewu, primary, Cheng, Ying, primary, Li, Zhendong, primary, Liu, Hui, primary, Qin, Jianwu, primary, Zhu, Jingqiang, primary, Cheng, Ruochuan, primary, Xu, Zhengang, primary, Zheng, Xiangqian, primary, Tang, Pingzhang, primary, and Gao, Ming, primary

Published
2023
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22. Assay of Serum Calcitonin from Anlotinib in Locally Advanced or Metastatic Medullary Thyroid Carcinoma: A Randomized, Double-Blind Phase IIB Trial

Author

Li, Dapeng, primary, Chi, Yihebali, primary, Chen, Xiaohong, primary, Ge, Minghua, primary, Zhang, Yuan, primary, Guo, Zhuming, primary, Wang, Jun, primary, Chen, Jie, primary, Zhang, Jiewu, primary, Cheng, Ying, primary, Li, Zhendong, primary, Liu, Hui, primary, Qin, Jianwu, primary, Zhu, Jingqiang, primary, Cheng, Ruochuan, primary, Xu, Zhengang, primary, Zheng, Xiangqian, primary, Tang, Pingzhang, primary, and Gao, Ming, primary

Published
2023
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23. Figure S1 from Anlotinib in Locally Advanced or Metastatic Medullary Thyroid Carcinoma: A Randomized, Double-Blind Phase IIB Trial

Author

Li, Dapeng, primary, Chi, Yihebali, primary, Chen, Xiaohong, primary, Ge, Minghua, primary, Zhang, Yuan, primary, Guo, Zhuming, primary, Wang, Jun, primary, Chen, Jie, primary, Zhang, Jiewu, primary, Cheng, Ying, primary, Li, Zhendong, primary, Liu, Hui, primary, Qin, Jianwu, primary, Zhu, Jingqiang, primary, Cheng, Ruochuan, primary, Xu, Zhengang, primary, Zheng, Xiangqian, primary, Tang, Pingzhang, primary, and Gao, Ming, primary

Published
2023
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29. Anlotinib in patients with medullary thyroid carcinoma with negative prognostic factors: A sub-analysis based on the ALTER01031 study

Author

Zhao, Jingzhu, primary, Chi, Yihebali, additional, Hu, Chuanxiang, additional, Chen, Xiaohong, additional, Ge, Minghua, additional, Zhang, Yuan, additional, Guo, Zhuming, additional, Wang, Jun, additional, Chen, Jie, additional, Zhang, Jiewu, additional, Cheng, Ying, additional, Li, Zhendong, additional, Liu, Hui, additional, Qin, Jianwu, additional, Zhu, Jingqiang, additional, Cheng, Ruochuan, additional, Xu, Zhengang, additional, Li, Dapeng, additional, Tang, Pingzhang, additional, Gao, Ming, additional, and Zheng, Xiangqian, additional

Published
2022
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40. A Randomized, Phase III Study of Lenvatinib in Chinese Patients with Radioiodine-Refractory Differentiated Thyroid Cancer

Author

Zheng, Xiangqian, primary, Xu, Zhengang, additional, Ji, Qinghai, additional, Ge, Minghua, additional, Shi, Feng, additional, Qin, Jianwu, additional, Wang, Feng, additional, Chen, Guang, additional, Zhang, Yuan, additional, Huang, Rui, additional, Tan, Jian, additional, Huang, Tao, additional, Li, Sijin, additional, Lv, Zhongwei, additional, Lin, Yansong, additional, Guo, Zhuming, additional, Kubota, Tomoki, additional, Suzuki, Takuya, additional, Ikezawa, Hiroki, additional, and Gao, Ming, additional

Published
2021
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42. Anlotinib in radioiodine-refractory differentiated thyroid carcinoma: A subanalysis based on ALTER01032 study for patients with poor baseline characteristics.

Author

Chi, Yihebali, primary, Gao, Ming, additional, Zhang, Yuan, additional, Shi, Feng, additional, Cheng, Ying, additional, Guo, Zhuming, additional, Ge, Minghua, additional, Qin, Jianwu, additional, Zhang, Jiewu, additional, Li, Zhendong, additional, Zhou, Xiaohong, additional, Huang, Rui, additional, Chen, Xiaohong, additional, Liu, Hui, additional, Cheng, Ruochuan, additional, Xu, Zhengang, additional, Zheng, Xiangqian, additional, Li, Dapeng, additional, and Tang, Pingzhang, additional

Published
2021
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44. Anlotinib in Locally Advanced or Metastatic Medullary Thyroid Carcinoma: A Randomized, Double-Blind Phase IIB Trial

Author

Li, Dapeng, primary, Chi, Yihebali, additional, Chen, Xiaohong, additional, Ge, Minghua, additional, Zhang, Yuan, additional, Guo, Zhuming, additional, Wang, Jun, additional, Chen, Jie, additional, Zhang, Jiewu, additional, Cheng, Ying, additional, Li, Zhendong, additional, Liu, Hui, additional, Qin, Jianwu, additional, Zhu, Jingqiang, additional, Cheng, Ruochuan, additional, Xu, Zhengang, additional, Zheng, Xiangqian, additional, Tang, Pingzhang, additional, and Gao, Ming, additional

Published
2021
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48. Surufatinib in Chinese Patients with Locally Advanced or Metastatic Differentiated Thyroid Cancer and Medullary Thyroid Cancer: A Multicenter, Open-Label, Phase II Trial

Author

Chen, Jiaying, primary, Ji, Qinghai, additional, Bai, Chunmei, additional, Zheng, Xiangqian, additional, Zhang, Yuan, additional, Shi, Feng, additional, Li, Xiaojiang, additional, Tang, Pingzhang, additional, Xu, Zhengang, additional, Huang, Rui, additional, Huang, Tao, additional, Pan, Yueyin, additional, Fan, Songhua, additional, Zhou, Jinghong, additional, and Su, Weiguo, additional

Published
2020
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49. Patterns of Cervical Lymph Node Metastasis in Locally Advanced Supraglottic Squamous Cell Carcinoma: Implications for Neck CTV Delineation

Author

Xu, Yi, primary, Zhang, Ye, additional, Xu, Zhengang, additional, Liu, Shaoyan, additional, Xu, Guozhen, additional, Gao, Li, additional, Luo, Jingwei, additional, Huang, Xiaodong, additional, Wang, Kai, additional, Qu, Yuan, additional, Zhang, Shiping, additional, Liu, Qingfeng, additional, Wu, Runye, additional, Chen, Xuesong, additional, and Yi, Junlin, additional

Published
2020
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50. Development and validation of circulating tumor cells signatures for papillary thyroid cancer diagnosis: A prospective, blinded, multicenter study

Author

Xu, Siyuan, primary, Cheng, Jingning, additional, Wei, Bojun, additional, Zhang, Yang, additional, Li, Yang, additional, Zhang, Zongmin, additional, Liu, Yang, additional, Zhang, Ye, additional, Zhang, Rui, additional, Wang, Kai, additional, Wang, Xiaolei, additional, Liu, Shaoyan, additional, Huang, Ying, additional, Xu, Zhengang, additional, and Liu, Jie, additional

Published
2020
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