Overview
Olefins, or alkenes, are unsaturated hydrocarbons containing at least one carbon-carbon double bond. They represent one of the most important classes of organic compounds in petrochemical industries. The simplest olefin is ethylene (C₂H₄), which serves as the foundation for numerous derivative products. These compounds are primarily produced through steam cracking of hydrocarbons in petroleum refining. Their industrial significance stems from the reactivity of the double bond, which allows for polymerization and other chemical transformations. The global olefins market is valued in hundreds of billions USD annually, reflecting their crucial role in modern manufacturing.
Physical and Chemical Properties
Olefins exhibit distinct physical properties that vary with molecular weight. Lower olefins (C₂-C₄) are gases at room temperature, while intermediate ones (C₅-C₁₅) are volatile liquids, and higher olefins are waxy solids. All olefins share the characteristic chemical reactivity of the carbon-carbon double bond. The double bond makes olefins susceptible to addition reactions, including hydrogenation, halogenation, and hydration. They readily undergo polymerization to form plastics and other polymers. Olefins are generally nonpolar, with low solubility in water but good solubility in organic solvents like benzene or ether. Their flammability increases safety considerations in handling and storage.
Main Applications
The primary use of olefins is as feedstocks for polymer production. Ethylene and propylene are converted into polyethylene and polypropylene respectively - the world's most produced plastics. These materials find applications in packaging, automotive parts, construction materials, and countless consumer goods. Olefins also serve as intermediates in producing alcohols, glycols, and other oxygenated compounds through hydration and oxidation processes. In fuel production, olefins improve octane ratings but require treatment to prevent engine deposits. Specialty olefins are used in synthetic lubricants, surfactants, and pharmaceuticals, demonstrating the versatility of this chemical family.
Safety and Storage
Handling olefins requires strict safety protocols due to their flammability and potential as asphyxiants. Lower olefins form explosive mixtures with air at relatively low concentrations (ethylene: 2.7–36% in air). Proper ventilation and explosion-proof equipment are essential in storage and processing areas. Storage considerations vary by physical state. Gaseous olefins are typically stored in pressurized cylinders or spherical tanks, while liquid olefins require properly designed containers with pressure relief systems. Inhibitors are often added to prevent peroxide formation during storage. Personnel should use appropriate PPE including flame-resistant clothing and respiratory protection when handling these compounds.
B2B Procurement Guide
When procuring olefins industrially, buyers should first determine the required specifications including purity level (typically 99%+ for polymer-grade), impurity limits, and any required additives or inhibitors. Transportation logistics are crucial due to the hazardous nature of these chemicals. Reliable suppliers should demonstrate compliance with international standards like ISO 9001 and possess proper safety certifications. Contract terms should address quality testing procedures, delivery schedules, and liability for transportation incidents. Large-volume buyers may consider long-term supply agreements to hedge against price volatility in the petrochemical markets. Always verify the supplier's track record for consistency and reliability.
Related Manufacturers
- 主营：[]
- 主营：[]
- 主营：铝酸钠、偏铝酸钠、中性氧化铝、药用层析氧化铝、活性氧化铝、丁基胶乳、丁基手套
- 主营：tpu、Eva、Pom、聚烯烃弹性体POE、Pa66、Lcp、Pa6t、Pa9t、Pa6、Poe、Hdpe、Ldpe、Lldpe、Pc、Hips、Pbt、Pctg、Pc/abs、Abs、pp、Ppsu、Pps、Para、Tpee、Pa612、Pa12
- 主营：耐高温材料、LCP、尼龙原料、聚烯烃弹性体POE、PPA、PC、PC/ABS、PPS、EVA、PP、POM、POE、PA6、PA66、TPU、PET、ABS、聚丙烯、PA12、PBT、PPO、PPE、合金料、LDPE、万华化学tpu、HDPE
- 主营：PP、POM、pc、聚烯烃弹性体POE、PA66、POE、ABS、PPS、PBT、PA6
- 主营：降凝剂、超分散剂、螯合稀释剂、α烯烃马来酸酐共聚物、甲基丙烯酸酯、染料水性分散剂
- 主营：环乙烷、苯乙烯、丁醇nba、烯烃类氧化醇催化剂、二甲苯、缩甲醛、石油醚、燃料油、石脑油、异辛醇、清洗剂、环己烷、溶剂d80、甲缩醛、增塑剂、稀释剂、溶剂油、黄腐酸、正丁醇、工业丁醇、工业酒精、油漆涂料、溴丁烷、辛醇、航空煤油
- 主营：聚乙烯亚胺、三甘醇二异辛酸酯3G8、三硫代碳酸钠40%、聚烯烃无卤阻燃剂HF900A、TS-1钛硅分子筛、六氯环三磷腈、5-甲基靛红、烷基苯磺酸酯、苯基次磷酸钠、甲巯咪唑、吡啶硫酮锌、焦磷酸哌嗪、热敏材料、油酸甲酯、曲酸
- 主营：甲基丙烯酸十二酯、甲基丙烯酸十六酯、甲基丙烯酸十八酯、丙烯酸十二酯、丙烯酸十六酯、丙烯酸十八酯、V50引发剂、偶氮二异丁咪唑啉盐酸盐、N-乙酰己内酰胺、硅烷偶联剂、双马来酰亚胺、马来酸酯、缩水甘油酯、缩水甘油醚、甲基咪唑、N-异丙基丙烯酰胺、金属萃取剂
- 主营：三硫代碳酸钠、红色素-16、聚乙烯亚胺、三乙二醇二异辛酸酯、巯基苯并噻唑钠、L-丙交酯、乙交酯、石油酯-T50、多元醇苯甲酸酯、热压敏染料、光稳定剂、高分子降解材料
- 主营：Pom美国杜邦、日本宝理pom、旭化成pom、Pom100p、Pom500p、Pom900p、M90-44、F20-03、ABS747、abs757、LCP、PA6T、PA9T、POE、PBT、PVDF、PETG、COC、HIPS、TPEE、TPU、TPV、日本旭化成pom、美国杜邦pom
- 主营：叔碳酸、十八醛、溶菌酶、聚Α烯烃、海藻糖、癸二醇、氨基丙基、氢路噻嗪、邻苯二甲、乙基碳二、羟基癸酸、正十七烷、谷胱甘肽、烷二甲醇、松果体素、vc磷酸酯镁、2-甲基丁醛、朱栾倍半萜、丁烷四乙酸、表面活性剂、癸烷撑二醇、缩水甘油邻、10-羟基羊蜡酸、氢氯噻嗪杂质、盐酸邻菲罗啉、壳聚糖季铵盐
- 主营：玻璃矿物、POM塑胶原料、PA66塑胶原料、COC环烯烃共聚物、LCP塑胶原料、PA12塑胶原料、PA6塑胶原料、ABS塑胶原料、PC/ABS塑胶原料、PPO塑胶原料、PMMA亚克力、PA9T工程塑料、PBT工程塑料、沙林料、PC塑料、PVA降解塑料、TPU弹性体、TPEE塑胶原料
- 主营：F20-03、m90-44、m90-45、烯烃基弹性体、PC-1100、pom100p、pom500p、pom900p、云天化pom、宝理pom、旭化成pom、杜邦pom、巴斯夫pa66、杜邦pa66、聚甲醛原料、聚丙烯pp、埃克森美孚POE、美国苏威PPSU、科思创PC、沙伯基础PC、李长荣聚丙烯、路博润TPU、埃克森ldpe、巴塞尔ldpe、韩华ldpe、日本三菱pom
- 主营：优氯净、二萘酚、硫酸锌、封口蜡、甘露醇、水杨酸、硫酸锰、防染盐、正辛烷、牛磺酸、白僵菌、冰醋酸、铵明矾、肉桂醇、碳酸镁、肉桂醛、磷酸铝、戊二醛、沸石粉、硫化钠、硫化钡、硫化钙、氯化锌、黄原胶、磺酸钙
- 主营：PA66、TPEE、玻纤增强PA66、环烯烃共聚物、PA66 A3EG6、食品级PA66、耐低温PA66、pa66加纤、PA66阻燃加纤、PPSU、PPS粉、EVA粉末、PA66 FR50、PPA、EVA、PET、LCP、POM、PA6T、高温尼龙、PC ABS、PPS、PA9T、PA46、抗紫外线TPU