ChongQin Purepath

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2026-06-01 09:12:29 -

Achieving Near-Zero Emissions with an Ultrasonic Oxidative Desulfurization Plant
The push for cleaner air has led regulatory bodies worldwide to mandate ultra-low sulfur fuel standards, often capping allowable sulfur content at a mere 10 parts per million (ppm). Achieving these stringent targets using legacy refining infrastructure requires massive capital expenditures and degrades overall refinery efficiency. However, integrating an Ultrasonic Oxidative Desulfurization...

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2026-06-01 09:06:09 -

Fighting Acid Rain: The Vital Role of the Modern Desulfurization Plant
In the mid-to-late 20th century, acid rain was one of the most visible and devastating environmental crises facing industrialized nations. It eroded architectural monuments, sterilized freshwater lakes, and destroyed vast swathes of forest. At the heart of this ecological disaster was sulfur dioxide (SO2), an acidic gas released primarily by burning fossil fuels in heavy industry and power...

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2026-05-25 09:17:29 -

Turnaround Planning: How to Safely Maintain Crude Oil Distillation Units
A turnaround (TA) for a Crude Oil Distillation Unit (CDU) is one of the most complex, expensive, and logistically challenging events a refinery will undertake. It involves shutting down a highly pressurized, high-temperature asset containing hazardous hydrocarbons, performing thousands of maintenance tasks, and restarting it safely—all within a tight window. Because a CDU is the...

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2026-05-14 03:18:04 -

Energy Recovery Strategies for Your Base Oil Solvent Extraction Plant
In a base oil solvent extraction plant, the cost of energy—specifically for heating and cooling the large volumes of solvent—is often the largest line item on the balance sheet. With global energy prices fluctuating and ESG mandates tightening, thermal efficiency is no longer a "nice-to-have"; it is a competitive necessity. The Power of Multi-Effect Evaporation The most effective...

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2026-04-24 06:01:28 -

Corrosion Management: Extending the Lifespan of Crude Oil Distillation Units
The Crude Oil Distillation Unit (CDU) is the first and most corrosive environment in any refinery. From the desalter to the atmospheric tower overhead, aggressive species like chlorides, sulfur, and naphthenic acids attack carbon steel and even some alloys. Effective corrosion management isn’t just about maintenance—it’s about extending run lengths between turnarounds...

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2026-04-24 05:43:52 -

Assessing Thermal Oil vs. Steam Heating for White Spirit Distillation Plant
White spirit (mineral spirits) distillation operates within a specific temperature window—typically between 150°C and 200°C (302°F–392°F) . While both thermal oil and steam can technically achieve this range, the physical chemistry of white spirit makes one option significantly superior for long-term reliability. Here is the technical assessment of thermal fluid...

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2026-04-09 09:42:53 -

Understanding the Core Engine of a Waste Oil to Diesel Distillation Plant
When operators ask about the "core engine" of a waste oil to diesel distillation plant, they usually point to the reactor or the burner. But a reactor simply applies heat. The true core engine—the component that determines quality, recovery rate, and uptime—is actually two systems working in perfect harmony: The Fractionating Column and the Vacuum Ejector System. Let’s...

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2026-04-01 03:45:52 -

How to Install and Set Up a Fiber AOM System
Before installing a Fiber AOM system, it is important to prepare a clean and stable environment. The workspace should be free from dust, vibrations, and temperature fluctuations. A vibration-isolated optical table is often recommended for precision applications. Ensuring a controlled environment helps prevent alignment issues and signal instability during operation. Connecting the Optical...

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2026-03-31 09:37:31 -

How Waste Engine Oil Recycling Reduces Carbon Footprint
One of the most immediate ways waste engine oil recycling reduces the carbon footprint is by preventing the environmental degradation caused by improper disposal. When used oil is dumped or leaked into the ground, it destroys soil health and can contaminate millions of gallons of freshwater. Treating contaminated water or reclaiming dead soil is an incredibly energy-intensive process that...

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2026-03-31 09:26:24 -

Risks of Neglecting Proper Petroleum Waste Disposal
Severe Ecological and Marine Biodiversity Damage Neglecting the proper disposal of petroleum waste can lead to catastrophic consequences for marine ecosystems. When untreated drilling fluids or oily cuttings are dumped directly into the ocean, they can smother the seabed, killing off benthic organisms and disrupting the bottom of the food chain. Heavy metals and toxic chemicals found in...

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2026-03-26 02:48:00 -

Environmental Impact of Diesel Hydrotreater Operations
Diesel hydrotreaters play a crucial role in modern refining processes by removing sulfur, nitrogen, and other impurities from diesel fuel. The process involves the catalytic treatment of diesel with hydrogen under high temperature and pressure. While the primary objective is to produce cleaner-burning diesel that meets stringent environmental regulations, the operations themselves have...

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2026-03-17 09:06:48 -

The Role of Thin Film Evaporator in Food Processing
Thin film evaporators play a vital role in preserving the quality of food products. By spreading liquid into a thin film and evaporating it quickly, the process minimizes heat exposure time. This helps retain flavor, color, and nutritional value, which is especially important for heat-sensitive products such as fruit juices, dairy, and herbal extracts. Improving Efficiency and...

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