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Thermal pyrolysis conversion of methane to hydrogen(H_(2)):A review on process parameters,reaction kinetics and techno-economic analysis

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Chinese Chemical Letters 2024年第8期35卷 62-73页

作者： Yi Herng Chan Zhe Phak Chan Serene Sow Mun Lock chung loong yiin Shin Ying Foong Mee Kee Wong Muhammad Anwar Ishak Ven Chian Quek Shengbo Ge Su Shiung Lam PETRONAS Research Sdn.Bhd.(PRSB) Kawasan Institusi BangiLot 3288&3289Off Jalan Ayer ItamKajang 43000Malaysia PETRONAS Carbon Capture&Storage(CCS)Enterprise PETRONAS Twin TowersKuala Lumpur City CentreKuala Lumpur 50088Malaysia CO_(2)Research Center(CO2RES) Department of Chemical EngineeringUniversiti Teknologi PETRONASSeri Iskandar 32610Malaysia Department of Chemical Engineering and Energy Sustainability Faculty of EngineeringUniversiti Malaysia Sarawak(UNIMAS)Kota Samarahan 94300Malaysia Institute of Sustainable and Renewable Energy(ISuRE) Universiti Malaysia Sarawak(UNIMAS)Kota Samarahan 94300Malaysia Higher Institution Centre of Excellence(HICoE) Institute of Tropical Aquaculture and Fisheries(AKUATROP)Universiti Malaysia TerengganuKuala Nerus 21030Malaysia Co-Innovation Center of Efficient Processing and Utilization of Forest Resources College of Materials Science and EngineeringNanjing Forestry UniversityNanjing 210037China Center for Global Health Research(CGHR) Saveetha Medical CollegeSaveetha Institute of Medical and Technical Sciences(SIMATS)Saveetha UniversityChennai 602105India

Hydrogen(H_(2))is a promising renewable energy which finds wide applications as the world gears toward low-carbon ***,current H_(2) production via steam methane reforming of natural gas or gasification of coal are laden with high CO_(2) ***,methane(CH_(4))pyrolysis has emerged as a potential technology to generate low-carbon H_(2) and solid *** this review,the current state-of-art and recent progress of H_(2) production from CH_(4) pyrolysis are reviewed in *** such as funda-mental mechanism and chemistry involved,effect of process parameters on the conversion efficiency and reaction kinetics for various reaction media and catalysts are elucidated and critically ***-ature,among other factors,plays the most critical influence on the methane pyrolysis *** metal/salt could lower the operating temperature of methane pyrolysis to1000℃.Based on the reaction kinetics,metal-based cata-lysts were more efficient in lowering the activation energy of the reaction to 29.5-88 kJ/mol from that of uncatalyzed reaction(147-420.7 kJ/mol).Besides,the current techno-economic performance of the pro-cess reveals that the levelized cost of H_(2) is directly influenced by the sales price of carbon(by-product)generated,which could offset the overall ***,the main challenges of reactor design for efficient product separation and retrieval,as well as catalyst deactivation/poisoning need to be debottlenecked.

关键词： Pyrolysis Methane Hydrogen Reaction kinetics Techno-economic analysis

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A review on co-pyrolysis of agriculture biomass and disposable medical face mask waste for green fuel production:recent advances and thermo-kinetic models

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化学科学与工程前沿:英文版 2023年第9期17卷 1141-1161页

作者： Melvin X.J.Wee Bridgid L.F.Chin Agus Saptoro chung L.yiin Jiuan J.Chew Jaka Sunarso Suzana Yusup Abhishek Sharma Department of Chemical and Energy Engineering Faculty of Engineering and ScienceCurtin University MalaysiaCDT 250Miri 98009Malaysia Energy and Environment Research Cluster Faculty of Engineering and ScienceCurtin University MalaysiaCDT 250Miri 98009Malaysia Department of Chemical Engineering and Energy Sustainability Faculty of EngineeringUniversiti Malaysia Sarawak(UNIMAS)Kota Samarahan 94300Malaysia Institute of Sustainable and Renewable Energy(ISuRE) Universiti Malaysia Sarawak(UNIMAS)Kota Samarahan 94300Malaysia Research Centre for Sustainable Technologies Faculty of EngineeringComputing and ScienceSwinburne University of TechnologyKuching 93350Malaysia Generation Unit(Fuel Technology&Combustion) Tenaga Nasional Berhad(TNB)Research Sdn BhdKajang 43000Malaysia Department of Chemical Engineering Manipal University JaipurJaipur 303007India Chemical&Environmental Engineering School of EngineeringRMIT UniversityMelbourneVictoria 3000Australia

The Association of Southeast Asian Nations is blessed with agricultural resources,and with the growing population,it will continue to prosper,which follows the abundance of agricultural *** biomass attracted researchers’interest in extracting bio-oil from these ***,the resulting bio-oil has low heating values and undesirable physical ***,co-pyrolysis with plastic or polymer wastes is adopted to improve the yield and quality of the ***,with the spread of the novel coronavirus,the surge of single-use plastic waste such as disposable medical face mask,can potentially set back the previous plastic waste reduction ***,studies of existing technologies and techniques are referred in exploring the potential of disposable medical face mask waste as a candidate for co-pyrolysis with *** parameters,utilisation of catalysts and technologies are key factors in improving and optimising the process to achieve commercial standard of liquid *** copyrolysis involves a series of complex mechanisms,which cannot be explained using simple iso-conversional ***,advanced conversional models are introduced,followed by the evolutionary models and predictive models,which can solve the non-linear catalytic copyrolysis reaction *** outlook and challenges for the topic are discussed in detail.

关键词： biomass COVID-19 wast catalyst pyrolysis kinetics

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Cultivation of microalgae for biodiesel production:A review on upstream and downstream processing

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Chinese Journal of Chemical Engineering 2018年第1期26卷 17-30页

作者： Xin Bei Tan Man Kee Lam Yoshimitsu Uemura Jun Wei Lim chung yiin Wong Keat Teong Lee Chemical Engineering Department Universiti Teknologi PETRONAS Centre for Biofuel and Biochemical Research Universiti Teknologi PETRONAS Fundamental and Applied Science Department Universiti Teknologi PETRONAS School of Chemical Engineering Universiti Sains MalaysiaEngineering Campus

Fluctuating market price of fossil fuel and overwhelming emission of greenhouse gases to the atmosphere have resulted in climate change and have been a global concern in this decade. Hence, biodiesel has become an alternative option to fossil diesel as it is renewable and environmentally friendly. Nevertheless, this alternative fuel that is usually derived from terrestrial oil crops will cause shortage in food supply and deforestation if mass production is realized. In recent years, cultivation of aquatic microorganism(particularly microalgae) to produce biodiesel is considered as a practical solution due to their high growth rate and ability to synthesize large quantity of lipid within their cell. However, the development of energy and cost-efficiency of microalgae cultivation system are the main issues in producing renewable microalgae biodiesel. Of late, wastewater or organic compost has been used as the cultivation medium as it can provide sufficient nutrients to sustain microalgae *** cultivation method and system are vitally important as these factors undoubtedly affect the final microalgae biomass and lipid yield. In this review, the cultivation system of microalgae, nutrients demanded for microalgae production, cell harvesting and drying, microalgae oil extraction, and utilization of microalgae biomass for biodiesel production are introduced and discussed. It is anticipated to convey clearer perspectives in upstream and downstream processes in microalgae-derived biodiesel production.

关键词： Microalgae Cultivation Lipid Biodiesel Harvesting

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Radiological study of the Asian coracoid process and clavicle: Implications for coracoclavicular ligament reconstruction

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Chinese Journal of Traumatology 2020年第1期23卷 56-59页

作者： Chi loong Jen Dong Hao Toon chung Hui Tan Khoo Teck Puat Hospital 90 Yishun Central 768828Singapore

Purpose:Iatrogenic coracoid and clavicle fracture is a known complication of drilling bone tunnels during anatomic coracoclavicular ligament reconstruction(ACCR).This study aims to measure the dimensions of coracoid process and clavicle in an Asian population to evaluate the suitability of drilling coracoid and clavicle tunnels for ACCR in ***:Width measurements of 196 coracoids and 189 clavicles were obtained after reviewing all computed tomography(CT)scans of the shoulder performed over a 6 years *** measurements were made on the CT slice which showed the maximum cross sectional width of the coracoid *** to lateral measurements of the coracoid width were taken on an axial view,4 mm above the identified junction of the coracoid base and glenoid ***-posterior clavicle width was measured through a point directly above the midpoint of the coracoid and perpendicular to the long axis of the ***:The overall mean coracoid width was 14.8 mm±2.54 mm(range 9.2e23.3 mm)and clavicle width was 17.1 mm±2.72 mm(range 11.1e25.3 mm).Conclusion:The Asian coracoid process is smaller than its Western *** research is required to validate this conclusion as no cadaveric studies with equivalent measurement techniques have been performed on *** the potentially narrower dimensions of the Asian coracoid process,extra precautions are required to minimize the risk of iatrogenic coracoid and clavicle fractures.

关键词： Coracoclavicular ligament reconstruction Coracoid process Clavicle Width

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Ti-containing hydrogenated carbon films fabricated by high-power plasma magnetron sputtering

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Transactions of Nonferrous Metals Society of China 2012年第6期22卷 1381-1386页

作者： YANG Peng SUNG Chia-chi FUH yiin-Kuen CHU Chun-lin LO Chih-hung Department of Engineering Science and Ocean Engineering National Taiwan UniversityTaipeiChina Department of Mechanical Engineering National Central UniversityChung liChina National Nano Device Laboratories HsinchuChina

To improve the characteristics of a diamond-like carbon （DLC） film, Ti-containing amorphous hydrogenated carbon thin films were deposited on sus304 stainless steel substrates by high-power plasma-sputtering with titanium metal as the solid plasma source in a mixed ArC2H2 atmosphere. The films were fabricated to obtain a multilayered structure of Ti/TiC/DLC gradient for improving adhesion and reducing residual stress. The effects of substrate bias and target-substrate distance on the films＇ properties were studied by glow discharge spectroscope, X-ray diffractometer, Raman spectroscope, nanoindenter, and a pin-on-disk tribometer. The results indicate that the films possess superior adhesive strength and toughness.

关键词： high-power plasma-sputtering Me-DLC diamond-like carbon

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An extra-adrenal pheochromocytoma mimicking a primary liver cancer

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Hepatoma Research 2016年第1期2卷 297-299页

作者： Kenneth Siu Ho Chok Florence loong chung Mau Lo Department of Surgery Queen Mary HospitalThe University of Hong KongHong KongChina Department of Pathology The University of Hong KongHong KongChina

Despite doctors’every effort to be vigilant when diagnosing,sometimes a preoperative diagnosis is disproved by postoperative pathological examination.A patient was diagnosed with hepatocellular carcinoma and received surgery as *** operation,a solitary retroperitoneal mass rather than a liver lesion was *** histopathological examination,the retroperitoneal mass was found to be an extra-adrenal pheochromocytoma.

关键词： Hepatocellular carcinoma liver resection major vascular resection hepatitis B carrier

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铁电复合物PZT/P[VDF(77)-TrFE(23)] 退极化场系数的电场与温度效应

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材料研究学报 2000年第1期14卷 17-23页

作者：张兴元陈王丽华蔡忠龙中国科学技术大学香港理工大学

用自建的适合厚片材料测量的介电测试系统研究了不同组分含量的ＰＺＴ／Ｐ［ＶＤＦ（７７）－ＴｒＦＥ（２３）］０－３型铁电复合物厚片介电系数的电场和温度依赖性在低电场和室温附近的温度范围，由Ｂｒｕｇｇｅｍａｎ方程预测的... 详细信息

用自建的适合厚片材料测量的介电测试系统研究了不同组分含量的ＰＺＴ／Ｐ［ＶＤＦ（７７）－ＴｒＦＥ（２３）］０－３型铁电复合物厚片介电系数的电场和温度依赖性在低电场和室温附近的温度范围，由Ｂｒｕｇｇｅｍａｎ方程预测的介电系数和实验值较为接近．Ｙａｍａｄａ模型通过退极化场系数Ｌｚ的变化，可拟合复合物介电系数的电场和温度依赖关系结果显示Ｌｚ随电场的升高而降低，随温度的改变（升温、降温过程）而与复合物介电系数类似。

关键词：铁电复合物介电系数退极化场系数电场温度

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Spontaneous Rupture of the Bladder after a Seizure: A Pitfall of Diagnosis

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Surgical Science 2013年第2期4卷 128-130页

作者： Eugene Lin Ho Lin Guang-Uei Hung Jungle Chi-Hsiang Wu Huei-loong Hsieh Tah-Chong Lin Chao-Chih Chen Chien-Hsiang Wang Mao-Sheng Lin Department of Life Sciences National Chung Hsing University Taichung Chinese Taipei Department of Nuclear Medicine Chang Bing Show Chwan Memorial Hospital Changhua Chinese Taipei Department of Urology Chang Bing Show Chwan Memorial Hospital Changhua Chinese Taipei Department of Urology Chushang Show Chwan Hospital Nantou City Chinese Taipei Department of Urology Show Chwan Memorial Hospital Changhua Chinese Taipei

Seizures can lead to different injuries ranging from minor lacerations to serious head injuries or bony fractures. We report a rare case of a male patient presenting with a history of a distended abdomen and gross hematuria following a seizure attack. After catheterization, the drained urine was bloodstained. On clinical suspicion of an acute abdomen, computed tomography was conducted, which showed intraperitoneal rupture of the bladder. At laparotomy, we found and repaired a laceration in the dome of the bladder in 3 layers. The postoperative period was uneventful. Our case shows that a complete abdominal examination is needed on patients following a generalized seizure episode. We also suggest that certain drugs for treating schizophrenia have anticholinergic effects, which may induce chronic urine retention. Chronic urine retention, especially in elderly male patients, may contribute to the risk of a spontaneous rupture of the bladder.

关键词： Bladder Injury Provoked Seizure Intraperitoneal Bladder Rupture Seizure

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陶瓷型铁电复合物厚片介电系数的电场依赖性

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复合材料学报 2000年第3期17卷 63-68页

作者：张兴元陈王丽华蔡忠龙中国科学技术大学高分子科学与工程系合肥230026 香港理工大学应用物理系及材料研究中心

建立起高压介电测试装置和相应的数据处理方法。研究了 PZT/P(VDF- Tr FE)和 PT/P(VDF- Tr FE) 0 - 3型铁电复合物厚片介电系数的电场依赖性。对于陶瓷体积分数 φ>0 .3的复合物 ,介电系数随测试场强的升高明显增大。在 φ<0 .1时 ,可用... 详细信息

建立起高压介电测试装置和相应的数据处理方法。研究了 PZT/P(VDF- Tr FE)和 PT/P(VDF- Tr FE) 0 - 3型铁电复合物厚片介电系数的电场依赖性。对于陶瓷体积分数 φ>0 .3的复合物 ,介电系数随测试场强的升高明显增大。在 φ<0 .1时 ,可用 Maxwell- Garnett方程拟合试验结果。Bruggeman方程适合于低电场 (<1 MV/m)下复合物介电系数的预测。通过 Lz的变化 ,用 Yamada模型可拟合复合物介电系数随电场变化的关系 ,说明 Lz是由复合物的组分维数、粒子形状以及粒子间静电相互作用所决定的参数。

关键词：铁电复合物介电系数电场依赖性陶瓷型

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