Recommended Free Tools
iTechGuides is reader-supported. When you buy through links on our site, we may earn an affiliate commission. As an Amazon Associate I earn from qualifying purchases. Learn more
Crude oil is not a single substance and gasoline, diesel, and jet fuel are not simply collected as finished products from one distillation column. A refinery first separates crude into boiling-point ranges, then converts some heavy molecules into lighter ones, removes contaminants, and blends many intermediate streams into fuels that meet specifications.
The exact product slate depends on the crude oil’s density and sulfur content, the refinery units available, and market demand. In the United States, an average 42-gallon barrel produces approximately 19–20 gallons of motor gasoline, 11–13 gallons of distillate fuel (most sold as diesel), and 3–5 gallons of jet fuel, according to the U.S. Energy Information Administration (EIA). Those are changing average yields, not a fixed recipe for every barrel.
What happens to crude oil inside a refinery?
Refining follows four linked jobs: separation, conversion, treatment, and blending. Storage and distribution come after those processing steps.
- Separation: Heat crude and divide it into broad fractions according to boiling point.
- Conversion: Break, rearrange, or combine molecules so the fractions better match fuel demand.
- Treatment: Remove sulfur and other unwanted compounds and improve fuel quality.
- Blending: Combine streams in controlled proportions to make gasoline, diesel, jet fuel, and other products that meet specifications.
The EIA summarizes the core process as: “All refineries follow three basic steps: Separation, Conversion, Treatment.” Blending is the final formulation step that turns treated streams into saleable fuels.
#1 Best Overall
- Powerful Turbo Fan:CAGIWIRU Electric Air Duster have reached speed up to 130000RPM,Can efficient remove dust and debris.With LED light and Three Adjustable Speed to meet with different cleaning tasks.
- With Attached USB C Fasting Charging cable.Charing 3 hours,Enjoy up to 240 minutes of use on the lowest setting, For third speed can use for 25mins.with four charging options to meet with your needs.
- Wide Application:Upgraded attached 5 different nozzles,making it suitable for a variety of scenes, such as car,pet, pc, keyboards, and other electronic devices. It also serves for office and home clean duster.
- Handy Design & Portable:Cordless air duster electric nozzle is Light weight and small size, design and comfortable to hold and space saving, convenient to carry around. You can put it in your room or inside the car without taking up space.
- Warranty & Support: Our Electric air duster comes with 5 years warranty and 24/7 customer service. During this period, if you have any questions,pls kindly feel free to contact us.
How is crude oil separated by distillation?
Atmospheric distillation makes the first cuts
Refineries heat incoming crude and feed the resulting liquids and vapors into an atmospheric distillation unit. Inside the tower, hydrocarbons condense at different heights because they have different boiling points. Heavier fractions condense lower in the column; lighter vapors rise farther before condensing.
The tower creates broad streams rather than finished fuels. The middle boiling range includes kerosene and distillates associated with jet-fuel and diesel production. Lighter streams include naphtha and gasoline-range material. Heavier material collects at the bottom as atmospheric residue.
| Distillation region | Typical streams or role | What happens next |
|---|---|---|
| Light overhead material | Light gases and light gasoline-range components | Separated further, treated, or used as feed for conversion and blending |
| Light and heavy naphtha | Important gasoline-producing feed | Often treated and sent to catalytic reforming or gasoline blending |
| Kerosene and middle distillates | Streams related to jet fuel and diesel | Treated, blended, or upgraded to meet product requirements |
| Atmospheric bottoms | Heavy residue left after atmospheric separation | Often sent to vacuum distillation or other upgrading units |
Vacuum distillation handles the heaviest material
Atmospheric bottoms can be sent to a vacuum distillation unit. Lower pressure reduces the temperature needed to vaporize heavy hydrocarbons, helping the refinery separate them without excessive thermal cracking that would make controlled separation more difficult.
Vacuum distillation produces gas oils and heavier residual streams. Gas oils can become feed for catalytic cracking or hydrocracking, while other heavy material may follow a refinery’s particular upgrading route. The presence and capacity of these downstream units strongly influence how much transportation fuel a refinery can make from heavy crude.
Why distillation alone cannot make enough gasoline, diesel, or jet fuel
Boiling-point separation does not create the ideal quantity or quality of transportation fuels. A crude barrel contains more heavy molecules than many markets want to sell directly as fuel, and some naturally occurring fractions do not have the octane, sulfur level, stability, or other properties required for a finished product.
Conversion units change the molecular size or structure of selected streams. They allow a refinery to turn lower-value heavy material into lighter components and to adjust the balance between gasoline, distillate, and other products.
Rank #2
- Screen Cleaner is Your Screen’s New Bestfriend! - EVEO is proud to present a screen cleaner that’s perfectly suited for your TV. Meet your new screen cleaner, computer screen cleaner, laptop cleaner, iPad cleaner, Macbook,tv cleaner or any other electronic device. Our screen cleaner spray and wipe along with the included plush microfiber cloth, easily removes dust, fingerprints & other smudges on the screen’s surface. Clean effectively for a streak-free screen
- Gentle on your Screens - Our screen cleaner spray and wipes is compatible to be used even for the most sensitive LCD, LED, CRT, and OLED screens in proper use. Be at ease knowing that this product is compatible with all the major brands: LG, SONY, Samsung, Sharp, iPad, iPhone, Android screens, Kindle, PC monitors - we’ve got you covered! Can be used as LCD screen cleaner, tv cleaner, smart tv screen cleaner, and more
- Premium Super Soft Plush Microfiber Cloth - Included in this efficient screen cleaning kit. This screen cleaner spray and wipe has our signature plush microfiber cloth specially designed to comply with screens and monitors and leave them streak-free. Has been shown to effectively absorbs stubborn stains, zero streaks, and no fiber shedding. Always use this together with our screen cleaner for the best results
- Easy-to-Use Screen Cleaner Kit + microfiber cleaning cloth - The EVEO Screen Cleaning Kit will easily be your new favorite tool when it comes to taking care of the things you love most, quick and easy solution for a streak-free screen. Simply screw on the sprayer gun on the screen cleaner bottle. Spray the cleaning liquid onto the microfiber cloth, then wipe the screen until desired cleanliness & shine is achieved.
- Quality Screen Care Kit Worth Purchasing - Enjoy a convenient Screen Cleaner anytime, anywhere you need it. Your satisfaction is our top priority. We stand behind the quality of our products and that’s why, you shouldn’t be worrying at all. We manufacture the Best Screen Cleaner. and can be used for laptop cleaning kit, laptop screen cleaner, tv screen cleaner for smart tv. MacBook screen cleaner, monitor cleaner or screen cleaner spray for electronic devices with microfiber cleaning cloth
Catalytic cracking
Catalytic cracking breaks larger hydrocarbon molecules into smaller, lighter molecules in the presence of a catalyst. The products can include gasoline-range components, lighter gases, and other streams that are processed again. Cracked gasoline is one contributor to the gasoline pool, not the entire pool.
Quick wins for a faster PC:
Scan for outdated or missing drivers - takes under a minuteDriver Scan →Clear out junk files and repair common Windows errorsFree Scan →Fix the driver behind crashes, sound loss and screen glitchesFind Drivers →Hydrocracking
Hydrocracking uses hydrogen and a catalyst to crack heavier gas oils. It can produce both gasoline and distillate-range material and is an important source of diesel and jet-fuel components. Because hydrogen is present, hydrocracking can also support the removal of some contaminants while molecules are being converted.
Catalytic reforming
Catalytic reforming upgrades naphtha into higher-octane components. The reformate it makes is valuable in gasoline blending because gasoline must meet an octane requirement as well as volume demand. Reforming also produces hydrogen that can be useful elsewhere in the refinery, although the amount and use depend on the refinery design.
Alkylation
Alkylation combines selected gaseous byproducts from cracking into larger, high-quality gasoline components. The resulting alkylate can improve the properties of a gasoline blend. It is one example of why refinery products are assembled from many streams rather than drawn from one column cut.
How refineries make gasoline
Gasoline is a blend assembled from several refinery streams. A simplified route looks like this:
Free tools Windows power users keep installed
One-click scans. No signup required.
- Atmospheric distillation separates light naphtha and other gasoline-range material from crude.
- Vacuum distillation and conversion units create additional feedstocks when heavier crude fractions must be upgraded.
- Catalytic cracking supplies gasoline-range molecules from heavier gas oils.
- Catalytic reforming raises the octane quality of suitable naphtha.
- Alkylation combines selected light gases into useful gasoline components.
- Hydrotreating and other treatment steps reduce sulfur and unwanted contaminants.
- Blending combines the streams to meet octane, vapor-pressure, sulfur, and other applicable requirements.
Because each stream has different properties, a refinery adjusts the recipe rather than using a universal percentage. The target blend can change with crude supply, seasonal requirements, available unit capacity, and the relative profitability of gasoline versus other products.
Rank #3
- 【Large size】：Measuring 800 x 300 mm/ 31. 5×12 inches, which is wider and taller than others. Large mouse pad can perfectly fit your keyboard and mouse of any size, and there is also ample space for peripherals such as phones, tablets, etc.
- 【LED backlight mouse pad】：Blade Hawks RGB mouse pad provides 7 static modes and 7 dynamic modes will give you the options you are looking for. Power-off memory function remembers the last lighting mode you selected. The super glow fiber Chroma will give you a colorful gaming setup that you want.
- 【Anti-slip rubber base】：Made from Natural rubber, this gaming mousepad will firmly grip your desktop, allowing you to enjoy the ultimate precision in the games you are most passionate about. It also comes with a texture that enhances this ability even further.
- 【Smooth and waterproof surface】: Micro-textured cloth surface, for extremely precise mouse control and a smooth movement. When liquid splashes on the gaming mouse pad, it forms water droplets and slides down. Will not delay your work or gameplay.
- 【Plug and play】: This mouse and keyboard pad is powered by USB, plug and play, no driver required. One button control light modes. Press one time to change the lighting mode, press twice to change the brightness, press and hold about 3 seconds turn ON/OFF.
How do refineries make diesel?
Diesel is produced mainly from distillate-range streams, but the route is not limited to the material that condenses in the middle of an atmospheric tower. Straight-run distillates can be treated directly, while hydrocracking and other conversion units can add more distillate-range molecules from heavier gas oils.
Diesel production sequence
- Separate: Atmospheric and, where needed, vacuum distillation create distillate and gas-oil streams.
- Upgrade: Hydrocracking converts selected heavy gas oils into lighter distillate material; other conversion streams may also contribute.
- Hydrotreat: Hydrogen and catalysts remove sulfur and other contaminants and improve the stream’s suitability for finished diesel.
- Blend: Treated components are combined to meet the required fuel properties.
Hydrocracking capacity is especially important when a refinery processes heavier crude or wants to increase its output of middle distillates. A refinery with fewer conversion units may obtain a larger share of its diesel from straight-run streams and may have less flexibility when crude quality or market demand changes.
How do refineries make jet fuel?
Jet fuel is associated with the kerosene range of crude distillation, but a refinery still has to treat and blend the material before it becomes a finished aviation fuel. Hydrocracking can add distillate-range molecules suitable for jet-fuel production, particularly when the refinery is designed to upgrade heavy gas oils.
What’s actually slowing this PC down?
Pick the symptom - the matching free tool is one click away.
Jet-fuel production sequence
- Distillation separates kerosene-range material from lighter and heavier fractions.
- Conversion units can create additional suitable distillate-range feed.
- Hydrotreating removes sulfur and other contaminants and helps bring the stream within required quality limits.
- Refinery operators blend approved components and test the resulting batch against the applicable aviation-fuel specification.
Jet fuel therefore comes from a controlled combination of separation, upgrading, treatment, and blending. The kerosene cut is an important starting point, not a guarantee that every barrel’s kerosene fraction can be sold as jet fuel.
What does hydrotreating remove?
Hydrotreating passes refinery streams over catalysts in the presence of hydrogen. It is used to remove sulfur and other contaminants and to improve the quality of feedstocks before they enter conversion units or become part of a finished blend.
Sulfur matters twice: it affects how much treatment a stream needs, and finished fuels must meet limits that protect engines, emissions-control systems, and air quality. Treatment requirements vary with the incoming crude, the stream being processed, the refinery’s equipment, and the final product specification.
Rank #4
- 【Softer and More Comfortable】Vaydeer wrist rest has unique diamond pattern, which is the combination of softness and aesthetics. The materials of wrist rest are improved into higher quality memory foam and covered with silky smooth lycra. The computer wrist rest makes you as comfortable and cushiony as like rest your wrists on clouds.
- 【Ergonomic Wrist Saver】The wrist rests for keyboard and mouse comes with a 17.32×3.15×0.83 inch keyboard wrist pad and a 5.94×3.15×0.83 inch mouse wrist support. Based on ergonomic design, the unique concave shape is the perfect fit for your wrist joints. The wrist rest pad fits most computer keyboards and laptops, improve hand and wrist posture, release your wrist and arm stress.
- 【Non-Slip Rubber Bottom】Featuring an anti-skid silicone base on the bottom, this wrist keyboard support stays firmly in place on your desk, preventing the padding from sliding around, ensuring stable and consistent wrist support during extended computer sessions.
- 【Better Experience & Pain Relief】Our keyboard arm rest is beneficial to alleviate the soreness caused by direct contact and friction between your arm and a hard desk surface, reducing the risk of wrist fatigue or carpal tunnel. The soft texture of memory foam can evenly distribute the pressure around your wrists and provide good support with just enough give.
- 【Helpful in Multiple Scenarios】Whether you're working, studying, writing, typing, gaming, this keyboard and mouse rest combo is an essential accessory to add comfort and support to your hands and wrists. It’s also a great gift for men, women, family, friend, coworker, gamer, teacher, etc.
Why gasoline, diesel, and jet-fuel yields vary
Crude density
Crude oils differ in density, often described using API gravity. Lighter crude generally contains a larger share of light hydrocarbons and can yield more high-value products through simpler separation. Heavier crude contains more material that must be converted or otherwise upgraded before it can become gasoline, diesel, or jet fuel.
The Tool Desk
Outbyte Driver Updater FREEFix the driver behind crashes, sound loss and screen glitchesFind Drivers →Outbyte PC Repair FREERepair Windows errors before they cause bigger problemsFix Now →Sulfur content
Low-sulfur crude generally requires less sulfur removal than high-sulfur crude. High-sulfur feed can demand more hydrotreating capacity, hydrogen, and equipment designed to handle the resulting contaminants. The sulfur content of the crude also affects the quality and disposition of intermediate streams.
Refinery configuration
Refineries do not all have the same secondary units. One may have substantial catalytic-cracking capacity; another may rely more heavily on hydrocracking, reforming, or other equipment. These differences determine how effectively each facility can turn heavy fractions into light products and how it can respond when demand shifts.
Market conditions
Operators adjust processing and blending decisions as the relative value of gasoline, diesel, jet fuel, and other products changes. The EIA notes that output volumes vary over time as refineries respond to demand and profitability.
| Factor | Effect on refining | Likely consequence |
|---|---|---|
| Lighter crude | More light material is available after separation | Less severe upgrading may be needed for high-value fuels |
| Heavier crude | More residue and gas oil require conversion | Greater dependence on cracking or hydrocracking capacity |
| Higher sulfur crude | More contaminant removal is required | Greater demand for hydrotreating and hydrogen |
| More hydrocracking capacity | More heavy gas oil can be converted to distillate and gasoline | Greater flexibility in diesel and jet-fuel production |
| More catalytic-cracking capacity | More heavy molecules can be converted to light products | Additional gasoline-range output and blending components |
What comes from an average 42-gallon barrel?
The EIA’s current U.S. explainer gives these approximate average outputs:
| Product | Approximate gallons per 42-gallon barrel | Qualification |
|---|---|---|
| Motor gasoline | 19–20 gallons | Average U.S. refinery output; varies by crude, refinery, time, and market conditions |
| Distillate fuel | 11–13 gallons | Most is sold as diesel; this is an average range, not a guaranteed yield |
| Jet fuel | 3–5 gallons | Average U.S. refinery output; the amount changes with refinery operations and demand |
These ranges should not be added together as a fixed barrel recipe. Refineries also produce other materials, and the listed product shares change over time. A barrel processed at a particular facility can produce a different mix because its crude feed and equipment differ from the U.S. average.
Best Value
- 【No Drill Mounted】Cable management tray can be assembled in as little as 3 minutes or less-simply. Side clips easily clampe the edge of desk, pass through the holes on the sides, and secure excess cables with baskets. Desk cable management supports inward or outward installation to meet your needs in different scenarios, and provides you with great convenience when collecting and organizing wires.
- 【Rubber Pad Protects Desk】Wire organizer under desk built-in soft rubber pads on the clamp protect your desk from scratches, so you will not damage your furniture or office.
- 【Sturdy and Beautiful】Cord management under desk is made of high-quality carbon steel and holds about 15 lbs. The wire basket has 2 holes on each side of the tray to enable your cables to pass freely. Cable baskets are suitable for desk thickness use from 0.4" to 2.4".
- 【Space Saving & Keep Organized】Desk cable management tray holds all your power cords, outlet strips, USB hubs and computer transformers hidden from your feet, and the data cables will not enter the vacuum cleaner to keep your desk clean and tidy. Desk wire organizer is also suitable for use in the kitchen and outdoors.
- 【Reduce Safety Risks】Cable tray under desk keeps all plugs away from your kids, no more worry about tripping. Using 2 holes wire tray saves extra space, helps you easily cabling and wire protection. The mesh design is not easy to accumulate dust, but avoids safety accidents caused by messy wires.
How finished fuels leave the refinery
Refineries hold crude inputs, intermediate streams, and finished products in storage tanks. After quality checks and blending, products move to distribution locations by pipeline, train, or truck. Storage provides a buffer between continuous refinery operation and the timing of shipments to terminals, airports, fuel distributors, and other customers.
Common misconceptions about oil refining
“Gasoline is the lightest liquid from the column”
Not exactly. Distillation creates naphtha and other light streams, but gasoline is a formulated blend. Reformate, cracked gasoline, alkylate, treated straight-run material, and other approved components can all contribute.
“Diesel and jet fuel are the same cut”
They are related distillate products, but they are not interchangeable by default. Each must meet its own quality requirements, and refineries choose different streams and treatments to reach those specifications.
Windows Errors? Fix Them Before They Spread
Repair common Windows errors and clear accumulated junk for a smoother, more stable PC - no reinstall needed.Free scan · no reinstallCrashes, No Sound, or Screen Glitches?
Random freezes, missing sound and display glitches usually trace back to one bad driver. Find and replace yours safely.Free scan · under a minute“A refinery can make any product from any crude”
Crude quality and refinery configuration impose real limits. Heavy, sulfur-rich crude generally needs more upgrading and treatment, while a refinery lacking the necessary conversion or treating capacity cannot simply produce the same slate as a more complex facility.
“One barrel always produces the same quantities”
Yields change with feedstock, equipment availability, operating choices, maintenance, seasonal requirements, and product economics. Published U.S. averages describe a broad industry outcome, not an individual refinery’s guaranteed result.
A concise mental model
Think of a refinery as a network rather than a single tower. The distillation units sort molecules by boiling range. Conversion units change molecular size and structure. Treatment units remove sulfur and other contaminants. Blending combines the resulting streams into fuels with specific properties. Storage and transportation then move those products into the supply system.
That sequence explains why crude oil can become gasoline, diesel, and jet fuel in the same complex: each product draws on different fractions and conversion pathways, and the final result is engineered through treatment and blending rather than collected whole from one separation step.
Do these 3 things before closing this tab:
1Scan for outdated or missing drivers - takes under a minute2Clear out junk files and repair common Windows errors3Fix the driver behind crashes, sound loss and screen glitchesQuick Recap
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
