Prof. Songbo He was invited as a speaker

何松波研究员应邀担任演讲嘉宾

Title: Catalytic pyrolysis of biomass to bio-based aromatics

口头报告题目：生物质催化热解制生物基芳烃

ABSTRACT:

       The aromatics industry produces approximately 110 million tons of benzene, toluene, and xylenes (BTX) annually. As a result of the strong drive towards a circular (bio-)economy, the demand for circular and biobased BTX has increased remarkably in recent years. Circular carbon sources such as end-of-life plastics and biomass are of interest to partly replace fossil resources for the production of BTX. Catalytic pyrolysis is an attractive approach, though techno-economic viability needs to be improved, e.g. by improving BTX yields and lowering the catalyst consumption. In my presentation, I will address the following technical challenges of bio-BTX production in the biorefinery by taking glycerol to aromatics as an example.

       1. In-situ and ex-situ catalytic pyrolysis approaches – Which one is preferable?

      2. Low BTX yield – How to enhance the BTX productivity over the zeolite catalysts?

      3. Reversible and irreversible catalyst deactivation – How to prolong the catalyst life-time and inhibit irreversible catalyst deactivation?

      4. Frequent catalyst regeneration in a fixed-bed reactor – How to recycle catalyst for catalytic reaction-regeneration cycles?

      5. Leveraging the existing refinery infrastructure – How to co-produce bio-BTX in an FCC reactor?

摘要：

      芳烃行业每年生产约1.1亿吨苯、甲苯和二甲苯（BTX）。在循环（生物）经济的强劲推动下，近年来对循环型和生物基BTX的需求显著增长。利用废弃塑料和生物质等循环碳源部分替代化石资源生产BTX已成为重要研究方向。催化热解是一种极具潜力的技术路径，但其技术经济可行性仍需通过提高BTX收率、降低催化剂消耗等方式进一步优化。本次报告将以甘油制芳烃为例，探讨生物精炼过程中生物基BTX生产面临的以下技术挑战：

      1. 原位与非原位催化热解路径——哪种更具优势？

      2. BTX收率偏低——如何提高分子筛催化剂的芳烃产率？

      3. 可逆与不可逆催化剂失活——如何延长催化剂寿命并抑制不可逆失活？

      4. 固定床反应器中频繁的催化剂再生——如何实现催化剂在反应-再生循环中的高效回用？

      5. 利用现有炼厂基础设施——如何在流化催化裂化反应器中实现生物基BTX的联产？