Overview
3D Combined PP Packing is a modular plastic packing material designed for gas-liquid contact towers in chemical and environmental industries. Its interconnected polypropylene (PP) lattice structure maximizes surface area while maintaining low pressure drop, outperforming traditional random packings like Raschig rings. Developed to address efficiency limitations in absorption and scrubbing systems, this packing type is particularly effective in wastewater treatment towers and VOC removal applications. Manufacturers often customize cell size (typically 50–200 mm) and surface treatments (e.g., hydrophilization) for specific process requirements.
Physical and Chemical Properties
The packing exhibits excellent thermal stability within -10°C to 120°C, making it suitable for most industrial processes. Its void ratio exceeds 95%, facilitating high gas throughput. The PP material provides inherent resistance to acids (except concentrated oxidizing acids), alkalis, and organic solvents. Key mechanical properties include a compressive strength of 3–8 MPa (depending on cell geometry) and a specific surface area ranging from 100–300 m²/m³. Unlike ceramic packings, its lightweight (bulk density 40–80 kg/m³) reduces structural load on towers while maintaining mechanical rigidity through interlocking 3D designs.
Main Applications
Primary use cases include bio-trickling filters for odor control, CO2 scrubbers in biogas plants, and SO2 removal towers in flue gas treatment. In petrochemicals, it serves in ethylene glycol recovery towers due to its resistance to glycol degradation. The packing’s large free volume (≥98%) makes it ideal for high-liquid-load applications like seawater desalination pretreatment. Recent innovations include conductive PP variants for electrochemical reactors and antimicrobial-additive versions for biological wastewater treatment, expanding its utility in advanced environmental technologies.
Safety and Storage
While PP is generally non-hazardous, dust generated during cutting/installation requires standard particulate PPE (N95 masks). Bulk storage should avoid stacking heights exceeding 2 meters to prevent deformation. Prolonged UV exposure degrades mechanical properties—outdoor storage beyond 6 months requires UV-stabilized formulations. Chemical compatibility must be verified for atypical processes involving halogenated solvents or temperatures above 110°C. Unlike metal packings, PP doesn’t require passivation but benefits from pre-cleaning with mild detergents to remove mold release agents before initial use.
B2B Procurement Guide
Industrial buyers should specify: 1) Tower diameter (for custom module sizing), 2) Required surface area per unit volume, 3) Presence of any oxidizing agents in the process stream. Bulk purchases (≥5 tons) typically qualify for 10–15% discounts from Chinese manufacturers. Quality verification should include melt flow index testing (MFI 2–10 g/10 min at 230°C/2.16 kg) to confirm material consistency. For corrosive environments, request third-party certifications like ISO 9001 and MSDS with traceable batch numbers. Lead times average 4–6 weeks for customized orders during peak seasons.
Related Manufacturers
- 主营：生物填料、聚合氯化铝、活性炭、水处理滤料
- 主营：石英砂、火山岩、竹炭、斜管填料、彗星填料、流化床填料、松树皮、陶粒、铸造石用英砂、火山石、沸石、活性炭、聚丙烯酰胺、聚合氯化铝、葡萄糖、悬浮球、空心球、硫酸铁、水处理石英砂、喷砂除锈、河道治理、尾水处理、污水处理厂、园林景观
- 主营：多面空心球、蜂窝斜管、ABS絮凝球、流化床填料、MBBR填料、悬浮球填料、泰勒花环填料、矩鞍环填料、生物绳型填料、立体弹性填料、组合填料、阶梯环填料、规整填料、冷却塔填料、波纹填料、盘式曝气器、管式曝气器、旋流曝气器、单孔膜曝气器、ABS滤头、彗星式纤维滤料、纤维球滤料、石英砂滤料
- 主营：椰壳活性炭、无烟煤滤料、石英砂滤料、蜂窝斜管填料、锰砂滤料、煤质柱状活性炭、微孔曝气器、纤维球滤料、863彗星式纤维滤料、火山岩
- 主营：过滤帽、abs滤帽、排水帽、环保填料、abs滤头、过滤管、废水处理、水帽滤头、叶片滤帽、叠片水帽、内丝滤帽、塑料滤帽、过滤滤头、防堵滤头、生物滤池、预装水帽、过滤装置、塔形滤头、滤帽滤头、板式水帽、长柄滤头、水处理配件、反冲洗滤头、污水过滤器、宾馆水处理
- 主营：聚丙烯酰胺、柠檬酸、硫酸亚铁、组合填料、聚合氯化铝、醋酸钠、食用葡萄糖、锰砂滤料、果壳滤料、金刚砂、纤维球、天然鹅卵石、氯锭、海绵铁滤料、无烟煤滤料、活性氧化铝、蜂窝活性炭、石英砂、椰壳活性炭、果壳活性炭、粉状活性炭、煤质柱状活性炭、消泡剂、硫酸铜、氯化钙
- 主营：聚丙烯酰胺、聚合氯化铝、椰壳果壳煤质活性炭、弹性填料、污水处理菌种
- 主营：曝气器、abs卡环、abs调节、组合填料、弹性填料、斜管填料、花环填料、流化床填料、悬浮球填料、曝气管、曝气头、排水帽、生物绳、调节支架、卡环抱箍、曝气设备、微孔曝气盘、曝气盘接头、多面空心球、MBBR、管式曝气器、盘式曝气器
- 主营：马鞍座、马鞍座接头、曝气盘马鞍座、斜管填料、PP斜管填料、弹性填料、立体弹性填料、空心球填料、多面空心球填料、生物绳填料、绳型生物填料、组合填料、PP组合填料、立体组合式填料、鲍尔环填料、聚丙烯鲍尔环填料、PP鲍尔环填料、鲍尔环、刚玉曝气器、管式曝气器、可提升管式曝气器、曝气管、排水帽、abs排水帽
- 主营：T型滤砖、絮凝格柵、滤板、床填料、pvc填料、ppc海绵、塔填料、不锈钢集水槽、生物填、流化床、无烟煤、空心球、鲍尔环、液面球、球除油、活性炭、去除cod、纤维球、除氮cod、abs滤头、短柄abs、不锈钢堰板、玻璃钢斜管、S型滤砖
- 主营：曝气器、搅拌机、板式曝气器、填料、MBBR填料、斜管填料、悬浮球填料、组合填料、弹性填料、花环填料、管式曝气器、盘式曝气器、平板曝气器、多面空心球、纤维球、絮凝球、微孔曝气器、旋混曝气器、旋流曝气器、加药搅拌机、小型搅拌机、立式搅拌机
- 主营：絮凝球、阶梯环、冷却塔、工填料、球填料、聚丙烯pp、弹性填料、塑料填料、曝气器、排水帽、涡流球、悬浮球、曝气管、曝气头、空心球、塑料球、沉淀池、维纶丝、曝气盘、喷淋塔、反应球、过滤球、空心浮球、球形曝气、曝气装置
- 主营：ABS絮凝球、彗星式纤维滤料、纤维球滤料、蜂窝斜管填料、空心球填料、鲍尔环填料、流化床填料、组合填料、弹性填料、MBBR填料、悬浮球填料、泰勒花环填料、矩鞍环填料、生物绳型填料、阶梯环填料、规整填料、石英砂滤料、核桃壳滤料、锰砂滤料、盘式曝气器、管式曝气器、旋流曝气器、单孔膜曝气器、ABS滤头、阳离子交换树脂
- 主营：絮凝剂、生物球、活性炭、污水填料、斜管填料、组合填料、生物填料、空心球填料、多孔环填料、好氧池填料、鹅卵石、无烟煤、醋酸钠、沉淀剂、乙酸钠、加厚斜管、凝胶电泳、pac净水剂、蜂窝斜管、聚丙烯酰胺、斜管沉淀池、纤维球滤料、改性纤维球、聚合氯化铝、碳基磷灰石
- 主营：聚丙烯酰胺、聚合氯化铝、硫酸亚铁、组合填料、聚合硫酸铝、醋酸钠、cod去除、除氧剂、活性炭、无烟煤、蜂窝碳、纤维球、火山石、eps泡沫、排水帽、干燥剂、悬浮球、火山岩、硅藻土、多空球、生物陶粒、海绵铁滤料、石英砂、鹅卵石、曝气器