1、In

In this study, we prepared a nanoflower-like Ni 2 P/Al 2 O 3 catalyst using an in-situ synthesis combined with liquid-phase phosphidation strategy and applied for the production of value-added hydrogenated C 9PR.

2、C9石油树脂_百度百科

C9石油树脂是以裂解制乙烯装置的副产物C9馏分为主要原料，在催化剂存在下聚合，或将其与醛类、 芳烃、萜烯类化合物进行共聚合而制得的热塑性树脂。

3、Large

Conversion of olefin-rich side streams of petroleum distillate cracking operations, pyrolysis gasoline (pygas), to hydrocarbon resins (HRs) represents a promising technology to upgrade the pygas byproduct and facilitate pygas valorization.

New advances in catalysts for C9 petroleum resin hydrogenation

The research progress in the efficiency supported nickel or/and palladium catalysts for C9 petroleum resin hydrogenation was illustrated and reviewed, further development was discussed.

New advances in catalysts for C9 petroleum resin hydrogenation

Color improvement of commercial C9 hydrocarbon resin (c-C9HR) and prepared C9 hydrocarbon resin (p-C9HR) has been investigated under various hydrogenation conditions over 2% Pd/γ-alumina...

C9 氢化石油树脂/C9 Hydrogenated Hydrocarbon Resin

9馏分通过聚合及加氢获得的水白色热塑性树脂。具有较好的热稳定性,以及与SIS、EVA、SBS、SEBS 、聚. 烃等聚合物有良好的相容性,可用于橡胶混炼。 RES-900 is water-white thermoplastic. esin obtained from polymerizing of Aromatic and hydrogenation. With the good heat resistance and good compatibility with polymer such as SIS, EVA, SBS, . EB. , polyolefin, etc., HR-100 is w. <1. Gardner 3 �. . 500-700kg/ 袋.

共聚型加氢石油树脂在热熔胶中的流变性能调控

共聚型加氢石油树脂（如常见的C5/C9共聚加氢石油树脂）凭借共聚带来的结构兼容性和加氢赋予的结构稳定性，常作为增粘改性成分调控热熔胶的流变性能。

C9 petroleum resins_化工百科

由石油裂解制造烯烃时所得的裂解油，经分离取130～160℃馏分（含有苯乙烯、甲基苯乙烯、二乙烯苯和茚等），在酸性催化剂和弗瑞德一克来福特、三氟化硼、硫酸等存在下聚合；或将其馏分与醛类、芳烃、萜烯类化合物进行共聚合而得的热塑性树脂，统称为石油树脂。 一般在聚合反应完成后，需经脱催化剂、洗涤、分离等工序得最终产品。 石油树脂主要用于涂料工业，如增强合成乳胶涂料、油性清漆改进光泽和附着力，橡胶增塑剂（软化点低）、提高合成橡胶硬度，纸张热熔涂层制造耐水瓦楞纸等。 它也可组成建筑涂料，广泛用于印刷油墨和胶黏剂。 产品内包装为绝缘性薄膜袋，外包装为聚丙烯编织袋，每袋净重25kg，净重误差±0.2%。 可长期贮存于清洁干燥的仓 …

Hydrogenated Hydrocarbon Resins (pure Series)

They are based on C9 or DCPD/C9 Monomers. Due to the precursor structure, the NOVARES pure series of water-white resins provide a range of polymer compatibilities and can fulfil the requirements of a broad spectrum of applications.

C9 Petroleum Resin

C9 thermal-polymerization hydrocarbon resin is widely used in anti-corrosive coating, alkyd-based enamel, aluminium paint, varnish, marine paint, offset ink, newspaper ink and rubber compounding.

In the vigorous development of modern industry, materials science plays a crucial role. Among them, C9 resin, as a high-performance material, is widely used in aerospace, automotive manufacturing, construction, and other fields due to its excellent mechanical properties and chemical stability. with the increasing awareness of environmental protection, the issue of polycyclic aromatic hydrocarbons (PAHs) in C9 resin has gradually attracted widespread attention. This article will explore the PAH content in C9 resin and its environmental impact, and propose corresponding treatment and control measures.

I. Overview of C9 Resin

C9 resin, also known as polycarbonate resin, is a thermoplastic plastic with excellent chemical resistance, electrical insulation, and dimensional stability. Its molecular structure contains multiple carbon atoms, which are connected through covalent bonds to form a three-dimensional network structure. This structure endows C9 resin with outstanding heat resistance, impact resistance, and transparency.

II. Sources and Hazards of PAHs

Polycyclic aromatic hydrocarbons (PAHs) are a class of compounds composed of two or more benzene rings connected by one or more side chains. They are widely present in the environment, including soil, water, atmosphere, and organisms. During the production and application of C9 resin, PAH residues may occur due to raw material contamination, improper processes, or operational errors.

III. Environmental Impact of PAHs

1. Ecological Risks: PAHs have strong toxicity and carcinogenicity. Long-term exposure to high concentrations of PAHs can severely harm human health, particularly affecting the respiratory system, liver, and endocrine system. Additionally, PAHs can accumulate through the food chain, posing potential threats to human health.

2. Environmental Pollution: PAHs are persistent and difficult to degrade in the environment. They easily volatilize into the atmosphere, forming long-lasting air pollutants. This not only negatively impacts air quality but may also lead to meteorological phenomena such as acid rain, damaging ecosystems.

IV. Control and Treatment of PAHs in C9 Resin

To reduce the risks of PAHs in the production process of C9 resin, a series of effective control measures must be implemented.

1. Raw Material Selection: Prioritize raw materials with low PAH content or preprocess raw materials to remove potential PAH contaminants.

2. Process Optimization: Improve the production process of C9 resin, such as adopting advanced catalysts, increasing reaction temperature and pressure, to effectively reduce PAH generation. Strengthen process control to ensure raw materials and product quality meet environmental standards.

3. Emission Control: Install efficient exhaust gas treatment devices, such as activated carbon adsorption towers or photocatalytic oxidation units, to remove PAHs from emissions.

4. Wastewater Treatment: Conduct strict monitoring and treatment of wastewater generated during production to ensure PAH levels meet discharge standards.

5. Waste Management: Classify, collect, and properly dispose of production waste, such as waste resin and catalysts, to avoid secondary environmental pollution.

As an important engineering plastic, the PAH issues in C9 resin during production and use cannot be ignored. By implementing effective control and treatment measures, the PAH content in C9 resin can be significantly reduced, thereby minimizing environmental and human health impacts. In the future, with continuous advancements in environmental technology, we believe that green and sustainable production of C9 resin can be achieved.