Products

Liquefied Petroleum Gas

    • Product Name: Liquefied Petroleum Gas
    • Chemical Name (IUPAC): Liquefied Petroleum Gas is a mixture of propane (IUPAC: propane) and butane (IUPAC: butane).
    • CAS No.: 68476-85-7
    • Chemical Formula: C₃H₈·C₄H₁₀
    • Form/Physical State: Liquefied gas
    • Factroy Site: Yushan Island, Gaoting Town, Daishan County, Zhoushan City, Zhejiang Province
    • Price Inquiry: sales3@ascent-chem.com
    • Manufacturer: Zhejiang Petroleum & Chemical Co., Ltd.
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    Specifications

    HS Code

    275028

    Chemicalformula C3H8 (propane) and C4H10 (butane) mixture
    Physicalstate Liquid under pressure, gas at atmospheric pressure
    Color Colorless
    Odor Odorless (odorant like ethyl mercaptan usually added)
    Boilingpoint -42°C to -0.5°C (propane to butane)
    Density 0.493–0.584 kg/L (at 15°C, as liquid)
    Vaporpressure Approx. 6–15 bar (at 20°C, depending on composition)
    Flammabilityrange 2% to 10% (volume in air)
    Autoignitiontemperature 470°C to 540°C
    Molarmass 44.1 g/mol (propane), 58.12 g/mol (butane)
    Energycontent Approx. 46 MJ/kg
    Solubilityinwater Very low
    Storagemethod Pressurized steel cylinders or tanks

    As an accredited Liquefied Petroleum Gas factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.

    Packing & Storage
    Packing Liquefied Petroleum Gas is packaged in a 50 kg steel cylinder with a valve, safety cap, and proper hazard labels.
    Container Loading (20′ FCL) Loaded into standard 20-foot containers, Liquefied Petroleum Gas (LPG) is transported in pressurized, specialized tanks ensuring safe, leak-proof shipping.
    Shipping Liquefied Petroleum Gas (LPG) is shipped in pressurized tanks or cylinders to maintain its liquid state. Transportation is typically via specially designed tank trucks, railcars, or gas carriers. Strict safety regulations are followed to prevent leaks, explosions, or fire hazards due to LPG’s flammability and pressurized nature during shipping.
    Storage Liquefied Petroleum Gas (LPG) is stored in specially designed, pressure-tight steel cylinders or large spherical or cylindrical tanks. These containers are equipped with safety valves and pressure relief systems to prevent leaks and accidents. Storage vessels are kept in cool, well-ventilated areas, away from ignition sources and direct sunlight, ensuring safe containment and easy access for filling or withdrawal.
    Shelf Life Liquefied Petroleum Gas (LPG) does not degrade over time and has an indefinite shelf life when stored in properly sealed cylinders.
    Application of Liquefied Petroleum Gas

    Purity 95%: Liquefied Petroleum Gas with purity 95% is used in domestic heating systems, where it ensures efficient combustion and reduced pollutant emissions.

    Vapor Pressure 8 bar: Liquefied Petroleum Gas with vapor pressure 8 bar is used in industrial cutting torches, where it enables stable flame characteristics for precise metal processing.

    Calorific Value 46 MJ/kg: Liquefied Petroleum Gas with calorific value 46 MJ/kg is used in commercial cooking appliances, where it provides rapid heating and consistent energy output.

    Boiling Point -42°C: Liquefied Petroleum Gas with a boiling point of -42°C is used in portable camping stoves, where it maintains reliable fuel vaporization in low ambient temperatures.

    Odorized Grade: Liquefied Petroleum Gas of odorized grade is used in urban fuel distribution networks, where it enhances safety by providing leak detectability.

    Moisture Content ≤0.01%: Liquefied Petroleum Gas with moisture content ≤0.01% is used in petrochemical feedstocks, where it prevents catalyst deactivation and process corrosion.

    Sulfur Content ≤50 ppm: Liquefied Petroleum Gas with sulfur content ≤50 ppm is used in automotive fuel systems, where it minimizes engine deposits and prolongs catalytic converter life.

    Density 0.52 kg/L: Liquefied Petroleum Gas with density 0.52 kg/L is used in forklift operations, where it enables optimized fuel storage and vehicle balance.

    Residue-Free: Liquefied Petroleum Gas of residue-free specification is used in aerosol propellant manufacturing, where it ensures product purity and consistent spray performance.

    Free Quote

    Competitive Liquefied Petroleum Gas prices that fit your budget—flexible terms and customized quotes for every order.

    For samples, pricing, or more information, please contact us at +8615365186327 or mail to sales3@ascent-chem.com.

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    Certification & Compliance
    More Introduction

    Liquefied Petroleum Gas: From Our Plant to Your Operations

    Understanding LPG: Our Everyday Experience

    Running a chemical manufacturing facility, day after day, brings an ongoing conversation about energy choices. We produce liquefied petroleum gas (LPG) by recovering valuable fractions from crude oil refining and natural gas processing. Each batch reflects the skill of our technicians, as we strive to deliver cleanliness, consistent vapor pressure, and an energy content that stays reliable year after year. LPG, in our plant, comes mainly as a mix of propane and butane, with trace amounts of propylene and butylene depending on seasonal demand and raw feedstock quality.

    Our LPG lines go through rigorous checks for purity, sulfur content, and moisture. Physical states depend on temperature and pressure; at atmospheric pressure, LPG remains a vapor, but inside storage vessels, it stays liquid. Each tanker out of our gates holds fuel that offers high calorific value, ideal for heat and cooking or as an industrial feedstock. Customers operating boiler systems, forklifts, or paint-curing ovens rely on the same stability that we monitor with our process control systems every shift.

    LPG Models and Technical Choices

    Different applications shape the LPG blends we load into tankers. In our zone, industrial-grade LPG goes out with higher propane content, providing steady vaporization even in winter cold. Retail cylinders use a blend tuned for household stoves and water heaters. Butane-rich grades get loaded for customers in warm climates or for use as propellant in aerosol packaging. Every batch comes off lines where valves, pumps, and sensors protect the composition—we monitor every movement to prevent cross-contamination.

    We produce LPG under tight tolerances: less than 0.2% total sulfur, moisture below trace levels discernible by Karl Fischer titration, minimal benzene carryover. Tanks, cylinder-filling carousels, and shipping systems in our facility all interlock to segregate the LPG streams; this keeps auto gas, commercial cooking fuel, and chemical-grade product separated by specific gravity, hydrocarbon composition, and odorant addition. That separation matters every day for our downstream partners. Refining output gets allocated on demand, so flexibility in switching blends is a built-in capability—and a headache when margins are tight.

    LPG Versus Other Fuels: Long-Term Perspective of a Manufacturer

    We have customers who look at LPG as a bridge fuel—a cleaner-burning alternative to coal, an easier-to-handle solution than diesel or fuel oil, and a safer material compared to heavier hydrocarbons. For us, the real difference starts well before a shipment leaves the gate. Our LPG involves resource extraction, fractionation, purification, odorization, bottling, and transportation. Handling butane and propane means advanced corrosion prevention and leak detection.

    Diesel, by contrast, stays liquid at normal conditions and delivers greater energy density per volume, but forms more particulates on combustion and produces higher sulfur emissions. Natural gas (methane) flows in pipelines as a gas, not a liquid, and presents different hazards in terms of leaks and combustion. LPG remains portable: tankers, railcars, and pressurized cylinders carry it where pipelines cannot reach. Every heating season, municipalities ramp up demand, and storage logistics keep us up at night. LPG sits closer to the middle ground—cleaner-burning than fuel oil and coal, more versatile than pure butane or propane alone, able to handle both small-scale and industrial applications.

    The Role of LPG in Energy Transition

    We see the market for LPG evolving as global policies push for carbon reduction. Our facility operates under regulations that keep us tracking emissions and process waste. LPG releases less CO₂ per unit of energy than coal and heavy oil, sidestepping the soot and particulates that regulators now target. Compared to electricity—especially from non-renewable sources—LPG allows a more nimble response to heating and cooking needs. Many businesses in our supply chain cannot switch to renewables overnight. Here, LPG serves as a practical step, blending immediate reliability with lower environmental impact in the short run.

    From where we stand, the flexibility of LPG has allowed small manufacturers to keep costs under control. During peak demand, gas grids tighten and industries need backup; LPG’s portability and storage flexibility save operations from expensive shutdowns. This value proves itself in logistics corridors, on construction sites before grid power arrives, and in food processing plants where consistent heating matters. We have watched customers scale up on LPG in cold months and throttle back when pipeline gas prices fall. Our own engineers continually search for better storage efficiency—minimizing boil-off losses and managing tank pressures—and for us, these operational choices turn into competitive advantage.

    Challenges in Quality and Delivery

    Supplying LPG teaches us about the weight of logistics and the reality of infrastructure. Our plant’s daily production doesn’t remove the challenge of safely storing and transporting pressurized liquids. We invest in robust cylinder inspection, training for drivers and technical staff, and systems that monitor tanks and pipes every hour. An unnoticed valve defect or pipe corrosion could spell disaster, so regular inspections and maintenance are non-negotiable.

    In some markets, illegal cylinder refilling leads to safety risks and poor public perception. We run regular audits, trace batch numbers, and share knowledge with downstream distributors to limit counterfeiting and cylinder tampering. Our quality assurance teams support traceability, so customers receiving our product know exactly when it was filled, where it was shipped, and what blend was provided. This transparency safeguards both our brand and the trust end users place in our cylinders—critical for a product that powers homes and fuels food preparation.

    Engineering Better LPG Production

    Years of running fractionation units reveal the impact of subtle adjustments. Feedstock quality keeps our process engineers on their toes. A crude oil shift or unexpected contaminants in associated gas can change separator efficiency, propane-butane balance, and output yield. We monitor each stage with gas chromatography, track corrosion rates, and calibrate our odorant addition to prevent leaks going undetected outside the plant.

    Upgrading compressors, heat exchangers, and tank insulation has allowed us to recover more LPG with less energy input. These investments come after long months of field testing—not every innovation delivers value on the floor. For operators, the day-to-day challenge is blending safety, efficiency, and cost. Small changes, like optimizing flare recovery or improving leak detection, compound over time into considerable improvements in energy use and environmental responsibility.

    Practical Uses: What Customers Tell Us

    Every week, we talk with customers using LPG in restaurants, textile workshops, greenhouses, or truck fleets. Commercial kitchens favor our product for its clean blue flame and steady burn rate. Greenhouse operators tell us they rely on LPG heating especially during unexpected cold snaps—they need warmth that grid outages cannot threaten. Forklift operators look to us for a fuel that brings fewer emissions inside warehouses, reducing health risks for workers.

    On the industrial side, we supply paint curing ovens, glass manufacturers, and space heating. Our sales teams receive feedback about vaporization rates in colder climates, prompting us to adjust blend percentages and ensure reliable pressure in customer tanks. Auto gas, a growing sector in some regions, pushes us to deliver LPG free of trace hydrocarbons that could foul engines or emission control hardware.

    The feedback loop matters. Problems, such as visible impurities or off-spec performance, trigger immediate root cause analysis. If a shipment strays outside normal ranges for odorant or hydrocarbon balance, we pull samples, audit plant logs, and hold shipments until everything checks out. This reduces hiccups on the customer end and keeps application complaints in check.

    Handling and Safety: Manufacturer Responsibilities

    Working with LPG goes beyond production. Safety sits at the core of every system we run. Experienced staff follow routine and emergency procedures: leak tests, pressure checks, hot work permits, and PPE requirements are all standard. We run frequent drills with local emergency services and share our up-to-date response plans.

    Cylinders and tankers dispatched from our filling plant undergo pressure testing, valve inspection, and fitment of tamper-evident seals. We add odorant to each batch so leaks become quickly detectable, cutting the response time during a line failure or transport accident. Training programs keep staff up to date on the latest safety standards and response strategies.

    We also work closely with transporters to maintain discipline across the supply chain. This extends to proper labeling, documentation, and vehicle checks. Loading stations include gas detectors and flameproof electrical fittings to keep incidents from escalating. Responsibility for safety continues all the way to customers—so we share manuals, technical support, and field troubleshooting from our in-house experts.

    Performance across Seasons

    Our plant in temperate regions has lived through freezing winters and sweltering summers. Seasonal shifts challenge our operators—a high butane blend won’t vaporize efficiently in winter, but propane-heavy gas can become dangerous at extreme heat due to higher pressure. Each year we calibrate blends, train drivers for cold-weather handling, and audit outdoor cylinder storage. Feedback from the field, such as slow vaporization during cold spells, gets relayed straight to our blending department.

    Scaling for peak demand becomes a balancing act. Municipalities often increase orders in the winter for space heating, so we schedule maintenance outages only in periods of slack demand. Weekend surges from markets or festivals drive rapid shipment increases, and our team must coordinate closely with dispatchers and filling operators to meet these spikes. Inventory planning means building up bulk storage and keeping extra cylinders available for last-minute orders.

    Environmental Responsibility and Future Directions

    Environmental rules reshape the way we operate. Our commitment to reducing fugitive emissions pushes us to upgrade seals, invest in optical gas imaging, and manage flaring losses. Our plant records greenhouse gas output with every shift—and pursues leak repair and efficiency upgrades where losses surface.

    We have begun integrating renewable LPG from bio-feedstocks. Early trials use plant-based oils and fats to generate compatible LPG fractions, with similar burning properties but a reduced carbon profile. It’s a field in early development but full of promise for customers keen to track sustainability commitments.

    Old cylinders can become dangerous if neglected. We partner with recyclers and offer take-back programs, removing unsafe stock from circulation. Used tanks are hydrotested, valves checked or replaced, and steel recycled wherever feasible. Properly managing the lifecycle of our containers not only improves safety but limits our environmental footprint.

    Lessons Learned: How We Keep Improving

    Years of hands-on manufacturing shape our perspective. It’s a discipline of constant attention to detail. Customer complaints, supply interruptions, safety incidents—all present direct feedback that forces improvements. We revise SOPs, invest in staff training, replace aging equipment, and stay alert for process innovations. Market pressures drive us to find savings without cutting corners on safety or quality. Leadership in the LPG business does not come from the size of plant alone, but from the willingness to adapt, listen, and put in the effort on the shop floor.

    Trust grows from every successful delivery, every batch that meets specs, and every troubleshooting call we answer. Long-term customers remember how we handle problems, communicate about outages, or support their technical teams. Our brand as a manufacturer rests on decades of reliability, safety, and responsiveness. We take pride in shipping LPG that we would use ourselves in our own homes.

    Choosing LPG from the Manufacturer’s Standpoint

    Practicality guides every step of the LPG journey from our plant. Customers expect performance, consistency, and safety. Our plant teams manage these risks, adjust to changing regulations, and support new technologies. The product we ship out carries a direct connection back to the dedicated staff, equipment, and systems running here on site.

    LPG earns its place through versatility. Portable, reliable, and energy-rich, it helps bridge the transition from dirtier fossil fuels while supporting baseline operations for industries, businesses, and families. Our perspective, shaped by years of supply challenges, chemical blending, and fieldwork, remains rooted in practical solutions, transparency, and continuous improvement. It’s a responsibility we live every shift.