Tag Pentanes

Abstract:

Pipeline insulation is a technique that aims to reduce the heat loss and prevent the freezing of fluids in pipelines. Pipeline insulation is widely used in various industries, such as oil and gas, chemical, power, and water supply. Pipeline insulation can improve the energy efficiency, safety, and reliability of the pipeline system.

One of the main materials used for pipeline insulation is polyurethane foam (PUF), which is a type of thermosetting polymer that has excellent thermal and mechanical properties. PUF is formed by the reaction of polyol and isocyanate, which are mixed with a blowing agent that creates bubbles in the foam. The blowing agent determines the density, thermal conductivity, and environmental impact of the PUF.

Cyclopentane is a hydrocarbon that has been widely used as a blowing agent for PUF in recent years. Cyclopentane has many advantages over other blowing agents, such as low ozone depletion potential (ODP), low global warming potential (GWP), high solubility in polyol, and low cost. Cyclopentane can also enhance the flame retardancy and aging resistance of the PUF.

In this article, we will introduce the principle and process of pipeline insulation, the properties and advantages of cyclopentane as a blowing agent, and the challenges and solutions of using cyclopentane in pipeline insulation. We will also review the current status and future prospects of cyclopentane in pipeline insulation.

Keywords: pipeline insulation, polyurethane foam, cyclopentane, blowing agent, energy efficiency

n-Pentane is a simple organic compound that belongs to the family of alkanes. It has the chemical formula C5H12 and consists of five carbon atoms linked by single bonds, with each carbon atom attached to three hydrogen atoms. n-Pentane is one of the three isomers of pentane, which means that it has the same molecular formula but a different structure. The other two isomers are isopentane and neopentane, which have more branched structures.

n-Pentane is a colorless liquid at room temperature and pressure, with a characteristic odor of gasoline. It is highly flammable and volatile, meaning that it can easily catch fire and evaporate. It is also insoluble in water, but soluble in most organic solvents. n-Pentane has a boiling point of 36°C and a melting point of -130°C, making it one of the lowest boiling and melting alkanes.

n-Pentane is mainly used as a solvent, a fuel, and a chemical intermediate. As a solvent, it can dissolve various substances such as oils, fats, waxes, resins, and rubber. As a fuel, it can be blended with gasoline to increase its octane rating and reduce its emissions. As a chemical intermediate, it can be converted into other useful compounds such as isoprene, which is used to make synthetic rubber.

n-Pentane is also important for the production of refrigerants, which are substances that can absorb and release heat in cooling systems. n-Pentane is used to make hydrofluorocarbons (HFCs), which are a type of refrigerant that have low ozone depletion potential and global warming potential. HFCs are widely used in air conditioners, refrigerators, and heat pumps.

n-Pentane is a common and versatile compound that has many applications in various industries. However, it also poses some risks to human health and the environment. Exposure to high levels of n-Pentane can cause irritation, drowsiness, headache, nausea, and loss of coordination. Inhalation of n-Pentane can also affect the nervous system and the lungs. n-Pentane can also contribute to air pollution and smog formation when it reacts with oxygen and nitrogen oxides in the presence of sunlight.

Therefore, it is important to handle n-Pentane with care and follow the safety precautions. n-Pentane should be stored in a cool, dry, and well-ventilated place, away from heat, sparks, and flames. n-Pentane should also be disposed of properly and not released into the environment. n-Pentane is a useful but hazardous substance that requires careful management and regulation.

Abstract: n-pentane and isopentane are two isomers of pentane, which are flammable liquids that belong to the class of alkanes. n-pentane has a higher boiling point than isopentane because it has a larger surface area and stronger intermolecular forces. This article explains the concept of boiling point, the structure and properties of n-pentane and isopentane, and the factors that affect their boiling point.

Keywords: boiling point, n-pentane, isopentane, surface area, intermolecular forces

Article:

Boiling point is the temperature at which a liquid changes into a gas. It is a physical property that depends on the strength of the intermolecular forces between the molecules of the liquid. Intermolecular forces are the attractive or repulsive forces that exist between molecules. The stronger the intermolecular forces, the higher the boiling point, and vice versa.

n-pentane and isopentane are two isomers of pentane, which means they have the same molecular formula (C5H12) but different molecular structures. n-pentane has a straight-chain structure, while isopentane has a branched structure. The molecular structures of n-pentane and isopentane are shown below:

n-pentane and isopentane are both flammable liquids that belong to the class of alkanes, which are hydrocarbons that only contain single bonds between carbon atoms. Alkanes are non-polar molecules, which means they have no permanent electric dipole. Therefore, the main intermolecular force between alkane molecules is the van der Waals force, which is a weak force that arises from the temporary fluctuations of the electron clouds around the atoms.

The strength of the van der Waals force depends on the surface area of the molecule. The larger the surface area, the more contact points between the molecules, and the stronger the van der Waals force. The surface area of a molecule is determined by its shape and size. Generally, a straight-chain molecule has a larger surface area than a branched molecule of the same size, because it can pack more closely with other molecules.

Since n-pentane has a straight-chain structure, it has a larger surface area than isopentane, which has a branched structure. Therefore, n-pentane has stronger van der Waals forces than isopentane. This means that more energy is required to overcome the intermolecular forces and vaporize n-pentane than isopentane. Hence, n-pentane has a higher boiling point than isopentane.

According to the data from the National Institute of Standards and Technology (NIST), the boiling point of n-pentane is 36.1°C, while the boiling point of isopentane is 27.9°C. This shows that n-pentane has a higher boiling point than isopentane by about 8.2°C.

In conclusion, n-pentane has a higher boiling point than isopentane because it has a larger surface area and stronger intermolecular forces. This is due to the difference in their molecular structures, which affects their shape and size. Boiling point is a physical property that reflects the strength of the intermolecular forces between the molecules of a liquid.

Abstract:

Pipeline insulation is a technique that aims to reduce the heat loss and prevent the freezing of fluids in pipelines. Pipeline insulation is widely used in various industries, such as oil and gas, chemical, power, and water supply. Pipeline insulation can improve the energy efficiency, safety, and reliability of the pipeline system.

One of the main materials used for pipeline insulation is polyurethane foam (PUF), which is a type of thermosetting polymer that has excellent thermal and mechanical properties. PUF is formed by the reaction of polyol and isocyanate, which are mixed with a blowing agent that creates bubbles in the foam. The blowing agent determines the density, thermal conductivity, and environmental impact of the PUF.

Cyclopentane is a hydrocarbon that has been widely used as a blowing agent for PUF in recent years. Cyclopentane has many advantages over other blowing agents, such as low ozone depletion potential (ODP), low global warming potential (GWP), high solubility in polyol, and low cost. Cyclopentane can also enhance the flame retardancy and aging resistance of the PUF.

In this article, we will introduce the principle and process of pipeline insulation, the properties and advantages of cyclopentane as a blowing agent, and the challenges and solutions of using cyclopentane in pipeline insulation. We will also review the current status and future prospects of cyclopentane in pipeline insulation.

Keywords: pipeline insulation, polyurethane foam, cyclopentane, blowing agent, energy efficiency

Excerpt:

Molecular sieve dewaxing (MSDW) is a process that uses zeolite catalysts to selectively convert long-chain n-paraffins into isoparaffins, thereby reducing the pour point and cloud point of diesel and lubricating oil. MSDW is an alternative to conventional solvent dewaxing, which has high energy consumption and environmental pollution.

One of the key factors affecting the performance of MSDW is the choice of desorbent, which is used to regenerate the catalyst after the reaction. Desorbent should have a low boiling point, a high selectivity for n-paraffins, and a low solubility in the product oil. Among various candidates, n-pentane has been widely used as a desorbent in MSDW due to its advantages of low cost, easy availability, and high efficiency.

n-Pentane can effectively desorb the n-paraffins from the catalyst pores and restore the catalyst activity. n-Pentane can also improve the product quality by reducing the aromatics and sulfur content in the product oil. Moreover, n-pentane can be easily separated from the product oil by distillation, and recycled for reuse in the process.

In this article, we will introduce the principle and mechanism of MSDW, the properties and advantages of n-pentane as a desorbent, and the optimization and control of the process parameters. We will also review the recent developments and challenges of MSDW, and provide some suggestions for future research.

Expandable polystyrene (EPS) is a type of thermoplastic foam that can be expanded by heating to form various shapes and sizes of products. EPS is composed of polystyrene beads or granules that contain a blowing agent and other additives. The most commonly used blowing agent for EPS is pentane, a low-boiling hydrocarbon that can generate gas bubbles when heated.

EPS has many advantages, such as low density, good thermal insulation, sound absorption, shock resistance, water resistance, acid and alkali resistance, etc. EPS is widely used in packaging, insulation, food containers, furniture, appliances, and automotive industries.

Pentane is a colorless, flammable, and volatile liquid that belongs to the alkane family. Pentane has three isomers: n-pentane, isopentane, and neopentane. Pentane is mainly used as a solvent, a fuel, and a blowing agent for EPS and other foams.

The global production of pentane is dominated by a few leading companies, such as Shell, ExxonMobil, Chevron, BP, Junyuan Petroleum Group and Total. These companies have advanced technologies, large-scale facilities, and extensive distribution networks to meet the growing demand for pentane, especially in the emerging markets of Asia and Africa.

n-Pentane is a hydrocarbon that has various applications in the industrial sector, such as solvent, fuel, and blowing agent for foam production. It is also a component of natural gas and gasoline. In UAE and Dubai, there are several suppliers and manufacturers of n-Pentane, such as Oberoi Refining, SIO365, and LuLu Hypermarket. However, one of the most prominent and reliable suppliers is Junyuan Petroleum Group, a global leader in the production and distribution of Pentanes, Hexanes, and Heptanes.

Junyuan Petroleum Group is a Chinese company that was founded in 2006 and has seven subsidiaries that cover a complete petroleum finishing industry chain. The company has a state-of-the-art, purpose-built manufacturing facility in Shandong, where it produces a wide range of specialty solvents in bulk. Junyuan Petroleum Group also has a subsidiary plant in Xinjiang, where it produces Sodium Methoxide, another important chemical product. The company has a specialist export division that delivers high-quality chemicals to customers in Africa, the Americas, Middle East and Asia, including UAE and Dubai.

Junyuan Petroleum Group offers n-Pentane products with different purity levels, ranging from 95% to 99%. The company also provides n-Pentane blends with Isopentane for different applications, such as geothermal power stations and hair care products. Junyuan Petroleum Group’s n-Pentane products have unrivaled consistency and uniformity, and meet the highest standards of quality and safety. The company also provides convenient and efficient logistics and dedicated after-sales service to its customers.

Junyuan Petroleum Group is a trusted source for chemical solvents and a leading supplier of n-Pentane in UAE and Dubai. For more information, please visit their website or contact them directly.

Summary:

Pentane is a flammable organic compound with the chemical formula C5H12. It has a density of 0.626 g/cm³ and is used as a solvent, a reference liquid for gas chromatography, and a raw material for synthetic rubber and other chemicals. ISO Tank container is a type of intermodal container that is designed to transport liquids, gases, and powders in bulk. It is built according to ISO standards and can carry up to 26,000 liters of liquid. ISO Tank container has a safety filling factor of 95%, which means that the container should not be filled more than 95% of its capacity to allow for thermal expansion and prevent overpressure. A 25 cubic meter ISO Tank container can hold up to 14.725 tons of pentane safely. Pentane and ISO Tank container are a safe and efficient way to transport liquids, as they offer high reliability, low environmental impact, and cost-effectiveness.

Article:

Pentane is a simple hydrocarbon that belongs to the family of alkanes. It has five carbon atoms and 12 hydrogen atoms, arranged in a straight chain. Pentane is one of the three isomers of C5H12, the others being isopentane and neopentane, which have different structures and properties. Pentane is a colorless, transparent liquid at room temperature and pressure, with a boiling point of 36 °C and a melting point of -130 °C. It has a characteristic gasoline-like odor and is highly flammable. Pentane can form explosive mixtures with air and can be ignited by sparks, flames, or static electricity.

Pentane has various applications in industry and science. It is used as a solvent for organic substances, such as fats, oils, waxes, and resins. It is also used as a reference liquid for gas chromatography, a technique that separates and analyzes the components of a mixture based on their volatility and polarity. Pentane is a raw material for the synthesis of rubber, plastics, pharmaceuticals, and other chemicals. For example, pentane can be converted to isoprene, a monomer for natural and synthetic rubber, by a process called dehydrogenation. Pentane can also be used as a blowing agent for polystyrene foam, a refrigerant for low-temperature applications, and a fuel for internal combustion engines.

ISO Tank container is a special type of container that is designed to transport liquids, gases, and powders in bulk. It is also known as a tank container, a tanktainer, or an ISO tank. ISO Tank container is made of stainless steel and is surrounded by an insulation and protective layer of polyurethane and aluminum. The container is fitted inside a steel frame that conforms to the ISO standards, making it suitable for different modes of transportation, such as road, rail, and sea. The frame is 6.05 meters long, 2.4 meters wide, and 2.4 or 2.55 meters high. The capacity of the container ranges from 17,500 to 26,000 liters, depending on the type and density of the cargo.

ISO Tank container can transport both hazardous and non-hazardous products, such as chemicals, fuels, food, and water. ISO Tank container has several advantages over other modes of liquid transportation, such as drums, barrels, or flexitanks. ISO Tank container is more reliable and safer, as it is built to withstand high pressure and damage, and has a low risk of leakage and contamination. ISO Tank container is more environmentally friendly, as it can be reused and recycled, and has a low carbon footprint. ISO Tank container is more cost-effective, as it reduces the packaging, handling, and storage costs, and optimizes the loading and unloading efficiency.

One of the important parameters for ISO Tank container is the safety filling factor, which is the ratio of the maximum volume of liquid that can be loaded into the container to the total volume of the container. The safety filling factor depends on the type and temperature of the liquid, and the ambient conditions. The safety filling factor is usually 95%, which means that the container should not be filled more than 95% of its capacity. This is to allow for thermal expansion of the liquid and prevent overpressure and rupture of the container. For example, a 25 cubic meter ISO Tank container can hold up to 23.75 cubic meters of liquid safely. If the liquid is pentane, which has a density of 0.626 g/cm³, the maximum weight of pentane that can be loaded into the ISO Tank container is 14.725 tons.

Pentane and ISO Tank container are a safe and efficient way to transport liquids, as they offer high reliability, low environmental impact, and cost-effectiveness. Pentane and ISO Tank container can be used to transport various products, such as solvents, fuels, and chemicals, across different regions and countries. Pentane and ISO Tank container are examples of how science and technology can improve the quality and convenience of life.

The price of n-Pentane in Chinese market today, CNY/MT, is for reference only, and the final transaction price shall prevail.

General description. Pentane, a linear aliphatic hydrocarbon, is one of the main constituents of light straight-run (LSR) gasoline fraction in crude oils. Its isomerization can improve the octane number of gasoline.

n-Pentane is a volatile, isomeric, organic compound consisting of an alkane with five carbon atoms. Available in various quantities, purities, and reagent grades, it is an evaporable, nonpolar solvent used in liquid chromatography and industrial applications.

However, the name Pentane can sometimes refer to the two branched-form isomers of C5H12, which are methylbutane (isopentane) and dimethylpropane (neopentane). Unsurprisingly, Pentane exhibits similar chemical properties to the neighboring alkanes.

Are you looking for Pentane manufacturers in China? Find where to buy Pentane products from suppliers in China, including: distributors, industrial manufacturers in China, bulk supplies and wholesalers of n-Pentane, Isopentane, Cyclopentane and Pentane Blends. Search for Pentane products or transportation services, visit our website.

Pentane | C5H12 | – structure, chemical names, physical and chemical properties, classification, patents, literature, biological activities, safety/hazards/toxicity information, supplier lists, and more.

Pentane. CH3(CH2)3CH3. Synonyms: . CAS 109-66-0. Molecular Weight 72.15. Browse Pentane and related products at Junyuan Petroleum.

What are the different types of pentane?

Based on type, the market is classified into n-pentane, isopentane, and Cyclopentane. n-Pentane generated the maximum revenue in 2022, and is expected to remain dominant throughout the analysis period, as it is widely used in various personal care and industrial aerosol products as an aerosol propellant.

n-Pentane