Biomass Group, Nanjing Agricultural University, PO Box 68, 40 Dianjiangtai Road, Nanjing 210031

Lectures in Tengchong No.1 Middle School

On December 3, 2023, one of the activities of “Tengchong Scientists Forum series – Academician Science Popularization into Campus Activity” was held at Tengchong No.1 Middle School. The theme of the activity is “Love Science and Advocate Science”, which stimulates the interest of young people in exploring science through forms such as science popularization lectures, science experiment shows, and science popularization book exhibitions.

On the day of the event, Prof. Keqin Zhang (Academician of CAS), Dr. Zhaoyun Zhu (Academician of CAE), Prof. Caucher Birkar from Tsinghua University (2018 Winner of the Fields Medal), and Prof. Zhen Fang (Fellow of the Canadian Academy of Engineering), gave lectures in their respective fields. Prof. Zhen Fang gave a talk on “Biorefining agricultural and forestry biomass as fuel and high value-added products”. The 14^th batch of Yunnan Province Science Popularization Base awarding ceremony was held on-site; The scientific experiment exhibition – Fun Science Gallium – was welcomed by teachers and students on site.

Prof. Caucher Birkar and Prof. Zhen Fang

Prof. Caucher Birkar and Prof. Zhen Fang

方老师参加“腾冲科学家论坛系列活动之一——院士科普进校园活动”

12月3日，2023腾冲科学家论坛系列活动之一——院士科普进校园活动在腾冲一中举行。活动以“热爱科学 崇尚科学”为主题，通过科普讲座、科学实验秀、科普图书展等形式，激发青少年探索科学的兴趣。

活动当天，中国科学院院士张克勤、中国工程院院士朱兆云、清华大学丘成桐数学科学中心教授考切尔•比尔卡尔(2018年菲尔兹奖获得者-数学诺奖)、加拿大工程院院士方真(南京农业大学教授)结合各自领域展开科普。现场举行了第十四批云南省科普基地授牌仪式；科学实验展演——趣味科学“镓”受到现场师生欢迎。

中国科学院院士张克勤以《真菌与线虫的战争》为题，从作物的杀手——根结线虫、线虫的天敌——捕食线虫真菌、真菌如何设置陷阱等六个方面，通俗易懂地讲解了真菌与线虫之间的战争。中国工程院院士朱兆云以《话说中药》为题，从历史上的中药、现代中药和云南中药三个部分，展示了中药作为中国科学文化的瑰宝所具有的无限魅力，详细介绍云南白药传承创新发展的历程。伊朗裔英籍数学家考切尔•比尔卡尔以《From Science to Happiness》为题，阐释了如何从科学中获得幸福，如何在解决问题、发现奥秘中收获喜悦，如何正确认识教育在科学研究发现中的重要作用。加拿大工程院院士方真以《生物精炼农林生物质为燃料和高附加值产物》为题，介绍了生物质资源、生物炼制、生物质的几种水解方式，分享如何通过化学、生物的方法将糖转化为高附加产物以及合成生物柴油，展现生物技术在实现经济可持续发展和环保方面的积极作用。

省科技厅党组书记、厅长王学勤表示，院士科普进校园活动搭建了院士专家与青年学生的交流平台，不仅是教育“双减”中做好科学教育加法的具体举措，更是践行习近平总书记关于科技创新和科学普及“一体两翼”理论，促进两翼齐飞的重要载体。以此次活动为契机，希望同学们心怀科学梦想、树立创新志向，爱科学、懂科学、学科学，传承科学家精神。

　　昆明日报全媒体记者：张怡

责编：莫开井

Lecture in Cixi middle school

In the afternoon of April 25^th, Professor Zhen Fang (Fellow of Canadian Academy of Engineering) from Nanjing Agricultural University visited our school.

Professor Zhen Fang visited the campus and school history exhibition room, learned about the basic situation of Cixi Middle School, and discussed educational achievements and the concept of talent cultivation together.

Professor Fang gave a science popularization lecture on “Biomass and Biorefinery” in the staircase classroom on the second floor, introducing bioenergy technology and majors from the perspectives of biomass resources, sugar conversion into high value-added products, and biodiesel.

After lecture, students enthusiastically asked questions, and Professor Fang patiently and professionally answered them one by one. He encouraged the students to demonstrate the vitality and proactive spirit of young people in the new era. This is not only for answering questions about professional knowledge, but also a great encouragement and motivation for their curiosity and professional interest. Professor Fang also expressed the hope that students can maintain diligence and progress, and work together to promote the progress and development of science and technology in China.

院士进校园 丨 加拿大工程院院士方真教授莅临我校讲学

慈溪中学 2023-04-29 07:43 Posted on 浙江

4月25日下午，加拿大工程院院士方真教授莅临我校。

方真教授参观了校园和校史陈列室，了解了慈溪中学的基本情况，共议教育成果与英才培育理念。

方真教授于二楼阶梯教室开设了主题为“生物质和生物炼制”的科普讲学，从生物质资源、糖转化为高附加产物及生物柴油等角度，科普介绍了生物能源技术与专业。

讲座结束后，同学们踊跃进行提问，方真教授一一进行了耐心而专业的解答，他鼓励同学们展现新时代青年的蓬勃朝气与积极主动精神，这不仅是针对专业知识的答疑解惑，更是对同学们好奇心、专业兴趣的莫大鼓舞与激励。方真教授还表示，希望同学们能够保持勤勉与奋进，共同助力中国科技的进步与发展。

方真：加拿大工程院院士，Springer系列丛书《生物燃料和生物炼制》总编辑，曾获中国农业大学工学学士、硕士、博士（导师：曾德超院士）、加拿大麦吉尔大学工学博士学位（导师：JA Kozinski院士）、欧共体居里夫人博士后。在西班牙、日本和加拿大工作12后，2007年初全职回国，先后在中科院（百人计划学者）和南京农大工作。他是“快速水解”技术的发明者, 国际著名刊物Biotechnol Biofuels和J Supercrit Fluid副主编/编委。他连续9年进入“中国高被引学者”榜单。获2012云南省政府彩云奖、2017中国科学院优秀导师奖、2020 Springer “中国新发展奖” 、2021贵州自然科学一等奖和2022中国侨界贡献奖。他在能源和农业工程刊物发表论文172篇，获31项中国和5项美国发明专利，出版英文专著21部（章节下载量达44万次）。

2022年2月，学校入选浙江省首批“院士科普基地”。本次活动是慈溪中学“院士进校园”系列活动四。在过去一年，82届校友、中国工程院院士陈建峰回母校赠书，中国科学院院士、西湖大学校长施一公，中国工程院院士、温州医科大学校长李校堃来我校讲学，这些“育科学精神，立强国之志”的思政课，培植了学生的家国情怀与社会责任，激发了学生献身科学、报效祖国的爱国热情。

相关链接：

1.院士回母校 | 慈溪中学82届杰出校友、中国工程院院士陈建峰赠书活动和报告会在慈溪中学隆重举行

2.中科院院士、西湖大学校长施一公莅临慈溪中学讲学

3.院士进校园 | 中国工程院院士、温州医科大学校长李校堃莅临我校讲学

On Sep. 30, 2024, Prof. Zhen Fang was invited to the Celebration of the 75th Anniversary of the Founding of the PRC in Nanjing.

岁月啊，您就是一把杀猪刀。Time is a knife for killing pigs.

2013 in UK

2009 in NZ

Co-production of porous N-doped biochar and hydrogen-rich gas production from simultaneous pyrolysis-activation-nitrogen doping of biomass: Synergistic mechanism of KOH and NH₃

Recently, Master student Miss Yu-rou Wang supervised by Dr. Wei Chen and Prof. Zhen Fang published a research article entitled “Co-production of porous N-doped biochar and hydrogen-rich gas production from simultaneous pyrolysis-activation-nitrogen doping of biomass: Synergistic mechanism of KOH and NH₃” in Renewable Energy.

In this study, a method of simultaneous activation and nitrogen doping during biomass fast pyrolysis for co-production of porous N-doped biochar and H₂-rich gas production was proposed. The effect of temperature on chemical interaction mechanism of KOH and NH₃ was investigated at 500-800°C. Results showed that KOH and NH₃ had a synergistic effect on pore development and nitrogen doping, and the specific surface area and nitrogen content reached maximum values of 2008.37 m²/g and 5.05 wt%, respectively. It may be due to that NH₃ entered pores generating by KOH activation for further activation, and at the same time, excessive NH₃ could convert new O-containing groups to N-containing groups for more effective nitrogen doping. What’s more, the H₂ concentration and yield were up to 56.67 vol% and 517.95 mL/g, respectively. It indicates that the synchronization method of fast pyrolysis-activation-nitrogen doping is a promising approach, which is of great significance for the high-value utilization of biomass.

Related results were accepted in Renewable Energy：

120777. Y. Wang, W. Guo, W. Chen*, G. Xu, G. Zhu, G. Xie, L. Xu, C. Dong, S. Gao, Y. Chen, H. Yang, H. Chen, Zhen Fang, Co-production of porous N-doped biochar and hydrogen-rich gas production from simultaneous pyrolysis-activation-nitrogen doping of biomass: Synergistic mechanism of KOH and NH₃, Renewable Energy 229 (2024) 120777. https://doi.org/10.1016/j.renene.2024.120777.

Co-production of porous N-doped biochar and hydrogen-rich gas production from simultaneous activation and nitrogen doping during biomass fast pyrolysis 生物质快速热解过程中同步活化掺氮联产多孔掺氮炭和富氢气体

生物质同步热解-活化-掺氮联产多孔掺氮炭和富氢气体：KOH和NH₃的协同机制

最近，硕士生王雨柔在陈伟副教授和方真教授的指导下，在国际学术期刊Renewable Energy (Q1, IF = 8.7) 发表了一篇题为“Co-production of porous N-doped biochar and hydrogen-rich gas production from simultaneous pyrolysis-activation-nitrogen doping of biomass: Synergistic mechanism of KOH and NH₃”的研究性论文。

本研究提出了一种在生物质快速热解过程中同步活化掺氮的方法，可以实现多孔掺氮生物炭和富氢气体的联产。探究了温度（500-800°C）对 KOH 和 NH₃ 化学协同作用的影响。结果表明，KOH 和 NH₃ 对孔隙发育和氮掺杂有协同促进作用，比表面积和氮含量分别达到最大值 2008.37 m²/g 和 5.05 wt%。这可能是由于 NH₃ 进入 KOH 活化产生的孔隙进一步活化，同时过量的 NH₃ 可以将新生成的含氧官能团转化为含氮官能团，从而实现更有效地掺氮。此外，热解气体中氢气浓度和产量可达到 56.67 vol% 和 517.95 mL/g。这表明，同步快速热解-活化-掺氮的方法前景广阔，对生物质的高值化利用具有重要意义。

结果发表在Renewable Energy：

120777. Y. Wang, W. Guo, W. Chen*, G. Xu, G. Zhu, G. Xie, L. Xu, C. Dong, S. Gao, Y. Chen, H. Yang, H. Chen, Zhen Fang, Co-production of porous N-doped biochar and hydrogen-rich gas production from simultaneous pyrolysis-activation-nitrogen doping of biomass: Synergistic mechanism of KOH and NH₃, Renewable Energy 229 (2024) 120777. https://doi.org/10.1016/j.renene.2024.120777.

Prof. FANG attended 2024 CAE Annual Conference & Induction Ceremony of New Fellows

From May 26 to June 5, 2024,  Prof. Zhen FANG visited Canada and USA, attended 2024 CAE (Canadian Academy of Engineering: https://www.cae-acg.ca/) Annual Conference & Induction Ceremony in London (May 27-29), visited  McGill (https://www.mcgill.ca/) in Montreal (May 30-June 1) and New York University (NYU, https://www.nyu.edu/) (June 2-4).

The program included several panel presentations and discussions on important issues:

• AI/ML: The Disruptive Force Reshaping Engineering Disciplines
• Quantum Computing: Unleashing New Potentials and Challenges in Engineering
• From Lab to Market: Translating Cleantech Innovations into Practical Applications

• The next-generation batteries for EVs
• Infrastructure: energy and carbon emissions reduction
• Roadmap for Resilient Building
• The changing nature of severe summer storms and impact on engineering design

Prof. Donna Strickland, the Nobel Laureate (2018, Physics) delivering a keynote lecture in the morning of May 28 （2018年物理诺奖得主唐娜·斯特里克兰院士主题报告）

Prof. Fang in the morning of May 28（方老师出席5月28日的大会）

Profs. Donna Strickland and Fang in the morning of May 28 （大会休息期间，唐娜·斯特里克兰院士和方老师合影）

方老师出席加拿大工程院年会暨新院士入职典礼

2024年5月26日至6月5日，方老师访问加拿大和美国，出席2024 CAE（加拿大工程院：https://www.cae-acg.ca/)年度会议暨新院士入职典礼（伦敦，5月27-29日），随后访问麦吉尔大学(https://www.mcgill.ca/)（蒙特利尔，5月30日至6月1日）和纽约大学(https://www.nyu.edu/)（6月2-4日）。

大会包括几个关于重要问题的报告和小组讨论：

• AI/ML：颠覆性力量重塑工程学科
• 量子计算：释放工程中的新潜力和挑战
• 从实验室到市场：将清洁技术创新转化为实践应用

• 电动汽车的下一代电池
• 基础设施：减少能源和碳排放
• 弹性建筑路线图
• 严重夏季风暴的性质变化及其对工程设计的影响

McGill sci road to the top of Royal Mount （通往皇家山顶的麦吉尔科学之路）

Prof. Fang visited Prof. CJ Li’s Lab at McGill in Montreal （麦基尔大学CJ Li院士实验室）

Prof. Fang visited NYU （纽约大学一角）

Prof. Fang in the library at NYU（纽大图书馆）

生物柴油脂肪酶Biodiesel production via simultaneous esterification and transesterification of Periplaneta americana oil with liquid lipase Eversa® transform 2.0

Recently, PhD student Miss Jing-jing Guo supervised by Prof. Zhen Fang published a research article in Renewable Energy about biodiesel production from high acid value oil with liquid lipase.

Undeveloped Periplaneta americana oil (acid value 38.32 mg KOH/g) was directly used for one-step production of biodiesel with lipase without acid-pretreatment step for the commercial alkaline process. Biodiesel was produced via simultaneous esterification and transesterification of Periplaneta americana oil in the presence of lipase Eversa® Transform 2.0 (ET2) (12 US$/kg) in solvent-free system. The maximum biodiesel yield of 98.63% was obtained under the optimized conditions of 32 °C, 8.5 wt.% lipase dosage, 8 h, 6.5/1 methanol/oil molar ratio, and 4 wt.% water. Lipase ET2 was recycled 6 times at > 89.52 % biodiesel yield. Biodiesel yield of 93.94 % was further achieved in a 1 L reactor with 15.08 g/kg lipase/biodiesel. Biodiesel cost was estimated as 589.3 US$/ton. Kinetics study gave activation energy of 24.50 kJ/mol with kinetic Michaelis constant of 1.19 mol/L. The physicochemical properties of biodiesel met both Chinese national and US ASTM standards that could be blended with petro-diesel to be applied in both countries. This study suggests that lipase could directly catalyze waste oils for the production of biodiesel at low temperature.

Related results were published in Renewable Energy:

JJ Guo, S Gao, J Yang, H Zhang, YT Wang*, WN Ding*, Zhen Fang*. Biodiesel production via simultaneous esterification and transesterification of Periplaneta americana oil with liquid lipase Eversa® transform 2.0. Renewable Energy (IF 8.7), 229 (2024), 120756. https://doi.org/10.1016/j.renene.2024.120756

Liquid lipase Eversa® Transform 2.0 catalyzed high acid value Periplaneta americana oil for biodiesel production with 98.63% yield and recycled 6 times at > 89.52% biodiesel yield. （液体脂肪酶催化高酸值美洲大蠊油制备生物柴油的产率为98.63%。酶回收6次，生物柴油产率仍可达 > 89.52%）。

液体脂肪酶Eversa® Transform 2.0催化美洲大蠊油同时进行酯化和酯交换反应制备生物柴油

近期，博士生郭静静同学在方真教授的指导下，在国际学术期刊Renewable Energy (Q1，IF 8.7)发表了一篇关于液体脂肪酶催化高酸值油制备生物柴油的研究性论文。

脂肪酶直接催化美洲大蠊油（酸值为38.32 mg KOH/g）一步法制备生物柴油，而无需传统碱工艺的酸催化预处理步骤。在无溶剂体系中，脂肪酶Eversa® Transform 2.0（ET2）（12美元/千克）催化美洲大蠊油同时进行酯化和酯交换反应制备生物柴油。在最优反应条件下（反应温度32 °C、加酶量8.5 wt.%、反应时间8 h、醇/油摩尔比6.5/1、加水量4 wt.%），生物柴油的产率为98.63%。该酶回收6次，生物柴油产率仍高达 > 89.52%。在1 L反应器中，生物柴油产率仍可达93.94%在15.08 g/kg酶/生物柴油条件下。生物柴油成本估算为589.3美元/吨。动力学研究表明该反应的活化能为24.50 kJ/mol，动力学米氏常数为1.19 mol/L。生物柴油的理化指标符合中国和美国ASTM的标准，可与柴油混合并在两国应用。该研究表明脂肪酶可以在低温条件下直接催化废弃油脂制备生物柴油。

结果发表在Renewable Energy:

JJ Guo, S Gao, J Yang, H Zhang, YT Wang*, WN Ding*, Zhen Fang*. Biodiesel production via simultaneous esterification and transesterification of Periplaneta americana oil with liquid lipase Eversa® transform 2.0. Renewable Energy (IF 8.7), 229 (2024), 120756. https://doi.org/10.1016/j.renene.2024.120756

Thermodynamic modeling of freeze pretreatment in the destruction of rice straw structure combined with alkaline-hydrothermal method for enzymatic hydrolysis

Recently, PhD student Miss Qian Dong supervised by Prof. Zhen Fang published a research article in Bioresource Technology about freeze-pretreatment modeling and its combination with alkaline-hydrothermal method to enhance enzymatic hydrolysis of rice straw.

Freeze pretreatment combined with alkaline-hydrothermal method of rice straw for enzymatic hydrolysis was studied. Crystallization stress in the rice stem pores caused by water freezing at -20– -40 °C was modeled to illustrate the destruction mechanism. The stress was calculated as 22.5–38.3 MPa that were higher than the tensile yield stress of untreated stems (3.0 MPa), indicating ice formation damaging pore structure. After freeze at -20 °C, rice straw was further hydrothermally treated at 190 °C with 0.4 M Na₂CO₃, achieving 72.0 % lignin removal and 97.2 % cellulose recovery. Glucose yield rose to 91.1 % by 4.3 times after 24 h hydrolysis at 10 FPU loading of Cellic®CTec2 cellulase. The specific surface area of rice straw was 2.6 m²/g increased by 1.2 times after freeze. Freeze combined with alkaline-hydrothermal treatment is a green and energy-efficient method for improving enzymatic hydrolysis.

Related results were published in Bioresource Technology:

Q Dong, CX Gong, GL Xie, GQ Zhu, Zhen Fang*. Thermodynamic modeling of freeze pretreatment in the destruction of rice straw structure combined with alkaline-hydrothermal method for enzymatic hydrolysis. Bioresource Technology (IF 11.9), 403 (2024), 130864. https://doi.org/10.1016/j.biortech.2024.130864.

Crystallization stress in the rice stem pores was 33 MPa after freeze 4 times at -20 °C. Rice straw was pretreated by freeze-Na₂CO₃-hydrothermal treatment with 91.1% glucose yield after 24 h enzymatic hydrolysis. （在-20 °C条件下冷冻4次后，水稻茎秆孔内水产生的结晶应力为33 MPa。采用冷冻辅助Na₂CO₃水热预处理稻秆，酶解24 h后葡萄糖产率为91.1%。）

冷冻预处理热力学建模及其结合碱性水热法破坏稻秆结构用于酶解

近期，博士生董倩同学在方真教授的指导下，在国际学术期刊Bioresource Technology (Q1，IF 11.4)发表一篇关于冷冻预处理热力学建模及其结合碱性水热法处理水稻秸秆用于酶解的研究性论文。

采用冷冻联合碱水热预处理水稻秸秆。通过建立水稻茎秆中水冻结(-20– – 40 °C)引起的结晶应力模型来阐明冷冻预处理的破坏机制。冷冻产生的结晶应力为22.5–38.3 MPa，高于未处理茎秆的拉伸屈服应力(3.0 MPa)，表明冷冻预处理破坏了水稻茎秆的孔隙结构。水稻秸秆在-20 °C冷冻后进行碱水热处理(190 °C, 0.4 M Na₂CO₃)，木质素去除率为72.0%，纤维素回收率为97.2%。在10 FPU Cellic®CTec2纤维素酶负载下水解24 h后，葡萄糖的产率提高了4.3倍，达到91.1%。冷冻预处理后，水稻秸秆比表面积为2.6 m²/g，提高了1.2倍。冷冻联合碱性水热处理是一种绿色节能的改善酶解的方法。

结果发表在Bioresource Technology：

Q Dong, CX Gong, GL Xie, GQ Zhu, Zhen Fang*. Thermodynamic modeling of freeze pretreatment in the destruction of rice straw structure combined with alkaline-hydrothermal method for enzymatic hydrolysis. Bioresource Technology (IF 11.9), 403 (2024), 130864. https://doi.org/10.1016/j.biortech.2024.130864.