惠城环保：公司自主研发的混合废塑料深度催化裂解技术直接将废塑料转化为低碳烯烃和混合芳烃

Core Viewpoint - Huicheng Environmental Protection (300779) has announced its innovative approaches to waste plastic pollution management, highlighting three recycling pathways, with a focus on its proprietary one-step catalytic cracking technology that achieves a high product yield of over 92% [1] Group 1: Recycling Pathways - The first pathway is physical recycling, which involves converting waste plastics into regenerated pellets for downgraded use in plastic products, but it has high quality requirements and limited recycling cycles, ultimately leading to incineration or landfill [1] - The second pathway is the traditional "two-step method," which involves pyrolyzing waste plastics to produce oil and then chemical raw materials, characterized by long processing times, high energy consumption, and a product yield of only 50%-60% [1] - The third pathway is the company's self-developed mixed waste plastic deep catalytic cracking technology, a globally pioneering "one-step" process that directly converts waste plastics into low-carbon olefins and mixed aromatics, achieving a product yield of over 92% [1] Group 2: Technological Innovations - The company has developed a gas film nozzle technology that addresses the challenge of continuous and stable feeding of solid waste plastics under high-temperature conditions, which is crucial for the one-step process [1] - The use of a circulating fluidized bed with a local countercurrent bed reactor resolves the heat supply challenges necessary for the cracking of solid waste plastics into low-carbon olefins, particularly addressing the activation energy requirements for small molecules at high temperatures [1] - The company has effectively tackled the corrosion issues caused by chlorine in waste plastics during cracking by capturing hydrogen chloride at high temperatures, enabling continuous and stable industrial production [1]