Junyuan Petroleum Group, China’s largest n-Pentane producer, has successfully achieved continuous exports for the 19th consecutive year. Recently, 260 tons of n-Pentane were shipped from Qingdao Port to Colombia, marking another solid step in the company’s steady expansion into international markets.

Over the past years, Junyuan has actively promoted the transformation and upgrading of the petrochemical industry by relying on advanced naphtha chemical technology. Its products not only hold a strong position in the domestic market but also represent a leap from “Made in China” to “Global Solutions.” Through in-depth market research and front-line engagement, Junyuan has strategically targeted regions such as Southeast Asia and South America. By collaborating with major domestic trading partners, participating in international exhibitions, and opening up trade channels along the Belt and Road, the company has significantly expanded the global reach of its n-Pentane products.

In Colombia, particularly in the port cities of Buenaventura and Cartagena, n-Pentane plays a vital role:

Blowing Agent in polyurethane (PU) and polystyrene (EPS) foams, essential for insulation in refrigerators and construction panels.

Organic Solvent in adhesives, coatings, and inks.

Electronics Cleaning Agent to remove grease and impurities in manufacturing processes.

Refrigerant Component (R601) in eco-friendly cooling systems.

Chemical Intermediate, Laboratory Applications, and Specialty Uses in fine chemicals, chromatography, and performance-enhancing materials.

With its “Terminal + Internationalization” dual-driven strategy, Junyuan has built a strong supply chain that ensures reliable delivery through ISO tanks and customized packaging solutions. The company’s efforts are also aligned with the high-level development of inland open economy pilot zones in China, while strengthening long-term cooperation with international partners.

A company spokesperson emphasized that exporting to Colombia is an important milestone in Junyuan’s international strategy. Looking ahead, Junyuan will continue to explore overseas market potential, expand export volumes, and enhance the global recognition of its brand concept — “Junyuan · More than n-Pentane.” By doing so, Junyuan Petroleum Group aims to bring more high-quality naphtha-based chemical products to the global stage and contribute to the growing recognition of Chinese manufacturing worldwide.

Process Steps Explained

1. Raw Material – DCPD (Dicyclopentadiene): DCPD is commonly sourced as a byproduct from petroleum refining processes. It serves as the starting material for the production of Cyclopentane.
2. Thermal Cracking: Under high-temperature conditions, DCPD undergoes thermal cracking. This reaction breaks its molecular structure to form Cyclopentadiene, which is an unstable intermediate but necessary for the subsequent step.
3. Catalytic Hydrogenation: The Cyclopentadiene is then subjected to a catalytic hydrogenation process. In the presence of a suitable catalyst and hydrogen gas, Cyclopentadiene is converted into the stable product, Cyclopentane.
4. Final Product – Cyclopentane: Cyclopentane, the final product, is widely used as a blowing agent in the production of polyurethane foam, refrigerant insulation materials, and other applications where its distinct properties are beneficial.

Cyclopentane Production Process Flow Diagram

Below is an overview of the process used to produce Cyclopentane from DCPD.

1. Raw Material: DCPD (Dicyclopentadiene)

• Source: DCPD is typically obtained as a byproduct of petroleum refining processes. It serves as the starting material for this production route.

2. Thermal Cracking

• Process: Under high-temperature conditions, DCPD undergoes thermal cracking.
• Intermediate Result: This step converts DCPD into Cyclopentadiene, an unstable intermediate necessary for the next transformation.

3. Catalytic Hydrogenation

• Process: The Cyclopentadiene intermediate is subjected to a catalytic hydrogenation reaction.
• Outcome: With the presence of a suitable catalyst and hydrogen gas, Cyclopentadiene is converted into the final product—Cyclopentane.

Final Product: Cyclopentane

Applications

• Usage: Cyclopentane is widely utilized as a blowing agent in the production of polyurethane foam, as well as in insulation materials for refrigeration and construction applications.
• Benefits: Its favorable physical properties and environmental advantages make Cyclopentane a preferred choice in these applications.

   ┌─────────────────────────────┐  
   │ Raw Material: DCPD          │  
   │ (Dicyclopentadiene)         │  
   └─────────────────────────────┘  
                │  
                │  (Thermal Cracking)  
                ▼  
   ┌─────────────────────────────┐  
   │ Intermediate:               │  
   │ Cyclopentadiene             │  
   └─────────────────────────────┘  
                │  
                │  (Catalytic Hydrogenation)  
                ▼  
   ┌─────────────────────────────┐  
   │ Final Product:              │  
   │ Cyclopentane                │  
   └─────────────────────────────┘  

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Selecting a dependable cyclopentane supplier is essential for maintaining the quality, consistency, and sustainability of your supply chain. Cyclopentane, a versatile cycloalkane with numerous industrial applications, requires a supplier that can meet your specific needs. Here are five critical factors to consider when choosing a cyclopentane supplier.

1. Quality and Purity
   The quality and purity of cyclopentane are crucial. Opt for suppliers offering products with a purity level of at least 80% or higher to ensure effectiveness and reliability. Request a certificate of analysis (COA) to verify the product’s specifications. For instance, Junyuan Petroleum Group provides cyclopentane with a minimum purity of 99.0%, meeting stringent quality standards.
2. Research and Development Capabilities
   A supplier with strong R&D capabilities demonstrates a commitment to innovation and the ability to adapt to market demands. Inquire about their R&D team, facilities, and any recent advancements or patents. Suppliers like Junyuan Petroleum Group, with dedicated labs and research teams, are better positioned to offer cutting-edge solutions and continuous product improvements.
3. Production Capacity and Scalability
   Evaluate the supplier’s production capacity and scalability to ensure they can meet your current and future needs. A supplier with robust production facilities and scalable processes can guarantee a consistent supply, even as demand grows. Consider their production volume, capacity utilization, and expansion plans. Large-scale suppliers, such as Junyuan Petroleum Group, often provide cost-effective solutions and can efficiently handle substantial orders.
4. Customer Service and After-Sales Support
   Reliable suppliers offer excellent customer service and after-sales support. Look for prompt communication, personalized service, and a proactive approach to resolving issues. Effective after-sales support is vital for addressing technical problems or product concerns post-purchase. Junyuan Petroleum Group, for example, has a dedicated customer service team that ensures quick and efficient resolution of any issues.
5. Regulatory Compliance and Certifications
   Ensure the supplier adheres to industry standards and regulations. Certifications such as ISO indicate a commitment to quality and safety. Compliance with safety and environmental regulations minimizes legal and reputational risks. Junyuan Petroleum Group, for instance, holds ISO certifications and follows strict quality control measures to meet industry standards.

Conclusion
Choosing a reliable cyclopentane supplier involves evaluating quality and purity, R&D capabilities, production capacity, customer service, and regulatory compliance. By considering these factors, you can select a supplier like Junyuan Petroleum Group that delivers high-quality, consistent, and sustainable cyclopentane. A reliable supplier not only provides a superior product but also fosters a supportive and enduring partnership.

n-Pentane in drums is available starting October!  Due to high summer temperatures, shipments are paused from May 1st to October 1st. Contact us now and start stocking up! 
#nPentane #ChemicalSupply #IndustrialSolutions #Pentanes

In recent months, the price of n-Pentane in China has seen a significant decline. This downward trend can be attributed to several key factors:

1. Low Demand: The primary driver behind the falling prices is the reduced demand from downstream industries, particularly the petrochemical sector. The post-festival season saw a decrease in procurement activities, leading to an overall drop in demand.
2. Oversupply: The market has been experiencing an oversupply of n-Pentane, which has further pushed prices down. This oversupply is partly due to reduced production activities as enterprises adopt a cautious approach to ease inventory pressure.
3. Global Economic Factors: Fluctuations in global oil prices, influenced by geopolitical tensions and economic policies, have also played a role in the volatility of n-Pentane prices. These factors have led to weaker cost support from feedstock naphtha, contributing to the downward pressure on prices.
4. Logistical Challenges: Issues in logistics, including the Red Sea crisis and adverse weather conditions affecting soybean imports, have compounded the challenges faced by the n-Pentane market. These disruptions have further reduced the need for n-Pentane in various industrial processes.
5. Market Sentiment: The overall market sentiment remains negative, with buyers hesitant to place new orders amid ongoing disruptions and low demand. This cautious approach has led to a significant decline in procurement activities.

Despite these challenges, there is optimism for a potential recovery in the future, driven by smooth logistics and increased purchases during upcoming festival seasons. However, the current market conditions continue to exert downward pressure on n-Pentane prices in China.

Global geothermal power generation: the future star of clean energy

Summary:
With the continuous growth of global demand for clean energy, geothermal power generation, as an environmentally friendly and renewable form of energy, is gradually receiving attention from around the world. This article provides an overview of the development history, global layout, and several major thermal systems of geothermal power generation. Special mention was made of Italy as the world’s earliest country to utilize geothermal power generation, as well as China’s progress in the field of geothermal power generation. In addition, it also introduced the important raw materials provided by Junyuan Oil Group for global geothermal power generation projects.

Keywords: geothermal power generation; Clean energy; Thermal system; Raw material supply

Main text:

In the context of global energy structure transformation, geothermal power generation has become a shining star in the clean energy field with its unique advantages. Since Italy built the world’s first geothermal experimental power plant in 1904, geothermal power generation technology has gone through more than a hundred years of development. Nowadays, 32 countries around the world have established geothermal power plants with a total installed capacity of over 8 million kilowatts, making them an important choice to replace traditional fossil fuels.

In the global layout of geothermal power generation, countries such as the United States, Italy, Japan, and New Zealand are in a leading position. Especially in the United States, its installed capacity of geothermal power generation ranks first in the world, with Unit 11 of the Gaisse geothermal power station having a single unit capacity of up to 106000 kilowatts, demonstrating the enormous potential of geothermal power generation.

China started research in the field of geothermal power generation relatively late, but significant progress has also been made in recent years. Since the late 1960s, China has successively built several geothermal test power stations, of which the Yangbajing geothermal power station in Xizang, as the largest geothermal power station in China, has been operating safely and stably. The construction and operation of these power stations have accumulated valuable experience for the development of geothermal power generation technology in China.

The thermal system of geothermal power generation mainly includes geothermal steam power generation thermal system, expansion method geothermal water power generation thermal system, and intermediate medium method geothermal hydropower thermal system. These systems are suitable for geothermal fields in different temperature ranges, providing technical support for achieving the full utilization of geothermal resources.

It is worth mentioning that Junyuan Petroleum Group, as an important participant in global geothermal power projects, provides key raw materials such as isopentane and isobutane for global geothermal power projects. These raw materials play an important role in the thermal system of geothermal power generation and are one of the key factors to ensure the efficient operation of the geothermal power generation system.

Looking ahead to the future, with the continuous growth of global demand for clean energy, geothermal power generation will usher in a broader development space. Especially in many developing countries, geothermal resources are particularly abundant and have enormous development potential. It can be foreseen that in the near future, geothermal power generation will become one of the important pillars in the global clean energy field.

Summary:
n-Pentane is an important organic chemical raw material, with the chemical formula C5H12. This article will provide a scientific introduction to the properties, uses, storage methods, and applications of n-pentane in the chemical industry.

N-pentane, as a member of the alkane family, occupies an important position in the chemical industry due to its unique chemical properties and wide range of applications. Its chemical formula C5H12 indicates that n-pentane is composed of 5 carbon atoms and 12 hydrogen atoms, and belongs to a type of straight chain alkanes.

1、 The properties of n-pentane

n-Pentane is a colorless and transparent liquid with a lower boiling point (about 36 ° C) and is prone to volatilization. Its isomers include isopentane and neopentane, but the term “pentane” usually specifically refers to n-pentane. N-pentane has stable properties at room temperature, but is prone to combustion reactions at high temperatures or near ignition sources.

2、 The use of n-pentane

n-Pentane has a wide range of applications in the chemical industry. Firstly, it can be used as a low boiling solvent to dissolve some substances that are not easily soluble in water. Secondly, n-pentane is also an important foaming agent in the plastic industry, which can help plastic materials form a uniform foam structure. In addition, n-pentane can also be used as a fuel for automobiles and airplanes, and its high calorific value and good combustion performance make it an ideal energy choice.

In addition to the above applications, n-pentane also plays an important role in gas chromatography analysis and can be used as a standard substance or reference liquid. At the same time, it can also be used to manufacture chemicals such as synthetic pentanol and isopentane, providing raw material support for chemical production.

3、 Storage method of n-pentane

Due to the flammable and explosive properties of n-pentane, special attention should be paid during storage. Firstly, it should be stored in a cool and ventilated warehouse, away from flames and heat sources. The temperature of the warehouse should not exceed 29 ℃ to avoid fire or explosion accidents. Secondly, storage containers should be kept sealed to prevent the volatilization or leakage of n-pentane. In addition, n-pentane should be stored separately from oxidants and other substances to avoid chemical reactions.

Emergency leak handling equipment and appropriate containment materials should be equipped in the storage area, so that measures can be taken quickly for disposal in the event of a leak. At the same time, explosion-proof lighting and ventilation facilities should also be used to ensure the safety of the storage area.

4、 Summary

n-Pentane, as a multifunctional organic chemical raw material, plays an important role in the chemical industry. By understanding its properties, uses, and storage methods, we can better utilize n-pentane to provide support for chemical production. At the same time, we should also pay attention to its safe storage issues to ensure that no safety accidents occur during use.

Choosing between n-Pentane, Isopentane and Cyclopenane depends on the intended use. Here are some general differences between them:

• Pentane is a colorless, volatile liquid, mainly used for chemical experiments, solvent and solvent mixture preparation, and also an important raw material in the petroleum industry.
• When buying pentane, you should pay attention to the following aspects:
  • Purity: The higher the purity of pentane, the better its performance and quality, but the higher the price. According to different uses, you can choose different purity grades, such as AR, CP, GCS, GR, HPLC, agricultural residue grade, etc.
  • Packaging: Pentane is a flammable liquid and should be packed and stored in suitable sealed containers to prevent leakage and fire. Generally speaking, the packaging specifications of pentane are 200L steel drums and ISO tank containers.
  • Price: The price of pentane is affected by many factors such as market supply and demand, raw material cost, transportation cost, etc., generally ranging from hundreds of USD to thousands of USD. When buying, you should compare the quotations of different manufacturers and channels, and choose products with high cost performance.
  • Manufacturer: There are many manufacturers of pentane, and there are great differences in production scale, technology level, product quality, etc. You should fully understand the qualifications, reputation, after-sales service, etc. of the manufacturers when buying. You can choose regular, professional and reliable manufacturers through the Internet, industry associations, peer recommendations, etc.

Many manufacturers will be using a new, more environmentally friendly insulation material, called cyclopentane, in the manufacture of select refrigerators and freezers. Cyclopentane is a blowing agent for the polyurethane foams that are used to insulate refrigerators and freezers. Unlike some other chemicals used to insulate refrigerators, cyclopentane does not contain hydro-fluorocarbons (HFCs). Using cyclopentane results in significant reductions in equivalent CO₂ emissions. The most common foam-blowing agents currently used in the U.S. are R134a and R245fa. These industry-standard insulations can have a global warming potential (GWP) as high as 1300 (134a) and 950 (245a). In contrast, the foam-blowing agent cyclopentane has a GWP of approximately 10. When it comes to GWPs, the lower the number is, the better it is for the environment, so cyclopentane is clearly the more environmentally friendly choice. Cyclopentane increases the efficiency of the insulation foam by approximately 4 percent over the R134a foam currently used in most refrigeration products. Cyclopentane has been very popular as a blowing agent in Europe since the early 1990s, but the cost of retrofitting existing production facilities and the lack of U.S. regulations restricting the use of HFCs has delayed implementation in the U.S. However, there are other manufacturers currently selling refrigerators in the U.S. that use cyclopentane. Compared to other insulating foams, cyclopentane is competitively priced and relatively easy to produce. Like many gases, in its pure form, cyclopentane is a highly evaporative and flammable material. However once foamed, the unit is no more hazardous than a unit foamed with other blowing agents. As with any of our manufacturing processes, we’ve integrated a wide variety of redundant engineering and operational safeguards. To learn more about cyclopentane, click here.

 Common questions about cyclopentane

Q: What is this new material being used in the foam insulation?
A: The new material is called cyclopentane, a highly evaporative gas that is used to apply the foam insulations in refrigeration units. 

Q: What is cyclopentane?
A: Cyclopentane is a blowing agent for the polyurethane foams that are used to insulate refrigerators and freezers. 

Q: What are the benefits of using cyclopentane instead of other materials?
A: From an environmental perspective, unlike some other chemicals used to insulate refrigerators, cyclopentane does not contain hydro-fluorocarbons (HFCs). Using cyclopentane results in significant reductions in equivalent CO₂ emissions. 

Q: What foam-blowing agents are most commonly used in the U.S.? How is cyclopentane different?
A: The most common foam-blowing agents in the U.S. right now are R134a and R245fa. These two industry-standard insulations can have a global warming potential (GWP) as high as 1300 (134a) and 950 (245a). Comparatively, the foam-blowing agent cyclopentane has a GWP of approximately 10. When it comes to GWPs, the lower the number is, the less adverse impact on the environment, so cyclopentane is clearly a better choice. 

Q: Are there significant insulating advantages, as well?
A: Yes, cyclopentane is approximately 4 percent more efficient than the R134a foam we currently use in most of our products. 

Q: Do other refrigerators available in the U.S. market use cyclopentane?
A: There are other manufacturers currently selling refrigerators in the U.S. that use cyclopentane. 

Q: Why hasn’t cyclopentane caught on in the United States?
A: It has been very popular as a blowing agent in Europe since the early 1990s, but the cost of retrofitting existing production facilities and the lack of U.S. regulations restricting the use of HFC’s has delayed implementation in the U.S. 

Q: Is it more expensive than other insulating materials?
A: It is competitively priced and relatively easy to produce. 

Q: Is it dangerous?
A: Like many gases, in its pure form, cyclopentane is a highly evaporative and flammable material. However once foamed, the unit is no more hazardous than a unit foamed with other blowing agents. As with any of our manufacturing processes, we’ve integrated a wide variety of redundant engineering and operational safeguards.