Jingyuan clean manufacturing facility
Case Study · JY-DX40 Refining
Field Evidence · 2025 Deployment · Case DS13

Diesel refining & quality control, source purification.

A Shandong new-energy company deployed a dedicated JY-DX40-based 40 m³/h purification unit beside its product tanks — intercepting micron-scale gum and oxidised resin that conventional mechanical filters cannot catch, turning slightly hazy diesel into a clear, high-grade product.

Direct Answer

A Shandong new-energy company deployed a dedicated JY-DX40-based 40 m³/h purification unit beside its product tanks, intercepting the micron-scale gum and oxidised resin that conventional mechanical filters cannot capture. The unit runs in circulation mode during non-loading periods, upgrading tank-held diesel from hazy to clear without becoming a logistics bottleneck.

Project at a Glance

The Project.

A new-energy company in Shandong Province — a refining and clean-energy petrochemical producer supplying high-standard diesel to precision industrial equipment and premium transport markets — deployed a customised 40 m³/h diesel purification unit built on the JY-DX40 platform at its product-tank area.

Installed beside the main storage tanks, the unit operates in circulation mode during non-loading periods — continuously upgrading the quality of tank-held product — and in dispatch mode for outbound purification. The result: "polish while you store", with product diesel kept clear and bright around the clock.

JY-DX40-based 40 m³/h diesel purification unit deployed at a Shandong refining plant
ItemProject Information
EquipmentCustomised 40 m³/h diesel purification unit (JY-DX40 platform)
ApplicationRefinery-grade diesel purification and quality control
FacilityNew-energy company — diesel refining & clean energy
LocationShandong Province, China
Project Year2025 (Case DS13)
FuelFinished product diesel
Flow Rate40 m³/h
Filtration PrecisionMicron-scale fine filtration
Core ElementJingyuan rigid composite polymer membrane
InstallationBeside main storage tank — circulation or dispatch mode
SupplierShenyang Jingyuan Membrane Systems Co., Ltd.
Customer Background

Where Clarity Means Quality.

The customer is a petrochemical enterprise focused on finished-oil refining and clean-energy development — a production-grade operation with extremely high quality standards, supplying diesel for high-precision industrial equipment and premium transport applications.

In the refined-fuel business, clarity is quality. Trace contamination and gum do not merely affect appearance — they directly determine product grade, and in premium tenders a hazy sample is a scoring liability that no sales team can talk around.

The Requirement

Supply high-standard, visually clear diesel to premium markets — and do it at refining throughput, without turning purification into a logistics bottleneck.

Pain Points

Four Problems to Solve.

01
Fine Gum Contamination
Finished diesel carried micron-scale gum — invisible to the eye but enough to cause slight haze. Typically introduced by fuel oxidation or process residue, it directly affected the product's quality grading.
02
Blocked Price Premium
Under a high-grade quality-control regime, trace contamination and gum put the customer at a disadvantage in premium tenders — even facing price-reduction demands. A quality issue translated directly into lost margin.
03
Conventional Filtration Limits
Standard mechanical filtration equipment could not intercept low-molecular-weight or suspended gum and oxidised resin — fundamentally unable to achieve the "transparency" the product required.
04
High Turnover Pressure
Large shipment volumes and fast turnover meant purification could not become a logistics bottleneck — the process had to support continuous duty at 40 m³/h.
The Jingyuan Solution

Refinery-Grade Purification.

Jingyuan deployed a dedicated refining-grade purification system — protecting finished-product quality across three dimensions.

01
Membrane Deep Interception
The rigid composite polymer membrane is oleophilic and hydrophobic — strongly capturing oxidised resin and micron-scale gum while intercepting particulate and co-removing trace free water. A deep-polishing effect that keeps fuel clear and bright.
02
Beside-Tank Circulation
Installed beside the storage tank, the system runs in circulation mode during non-loading periods — tank-held diesel passes through the system repeatedly, upgrading quality during static storage. Equipment capacity is never idle.
03
Differential-Pressure Alarm
Automated quality monitoring: a differential-pressure alarm tracks element condition in real time, keeping filtration precision and flow at their optimal balance point under high load — no quality drift from blinded elements.

The "polish while you store" operating concept is the heart of this deployment: instead of treating fuel only at the loading moment, the system continuously circulates tank contents during storage — so product quality is upgraded in the tank, not just at the gate.

Product Diesel

Storage Tank

JY-DX40 Circulation Loop

Deep-Polished Diesel

Clear & Bright Product
Why This Configuration

The Selection Logic.

DEPTH
Gum-Class Contaminants
The contaminant profile — micron-scale gum and oxidised resin rather than coarse solids — demanded membrane-grade capture, not mechanical straining.
FLOW
Refining Throughput
40 m³/h continuous capacity matched the plant's shipment volumes and turnaround speed — purification without logistics impact.
MODE
Circulation + Dispatch
Beside-tank installation with dual mode: circulation polishing during storage, dispatch purification at loading — one system, full-time duty.

Built on the JY-DX40 platform — see the product page for full technical specifications.

Reported Results

From Quality to Margin.

The system delivered a complete loop from product-quality improvement to commercial return, as reported by the customer.

IndicatorBefore (Typical)After (Reported)
AppearanceSlightly hazy, visible suspended matterClear and bright
Fine gumAbove target rangeMarkedly reduced
Mechanical debrisTrace visible particlesNone
Chemical additive dependencyRelatively heavy useReduced usage
Premium-market competitivenessLimitedSignificantly improved
01
Product Quality Upgraded
Purified diesel visually clear and bright, with physical-chemical indicators better than industry standard per the customer's own QC records.
02
Premium Orders Won
The customer secured more high-end orders — product pricing power strengthened on the back of verifiable clarity.
03
Additive Dependency Reduced
Deep purification achieved by purely physical filtration — cutting chemical additive usage, with economic and environmental benefits together.
04
No Logistics Bottleneck
40 m³/h throughput met shipment turnaround fully — the purification step never slowed dispatch.

Data note: qualitative outcomes on this page are drawn from the customer's project records (Case DS13, updated 2025) and are presented as reported. They describe this deployment and are not a general performance guarantee — actual results depend on feed condition and plant configuration.

Customer Voice

From the Operator.

"In the new-energy industry, clarity equals quality. The fine gum in our diesel used to be a technical problem — until we installed Jingyuan's 40 m³/h system. It gives our product the final 'polish' it needed. Our diesel is now clear and bright, meeting the demands of the premium market."

— Production Director, new-energy company, Shandong

The Bigger Picture

Source-Level Quality Control.

The value of this project is the shift from end-of-pipe treatment to source-level quality control — purity engineered into the product before it ever ships.

BEFORE
End-of-Pipe Quality Management
Refining Process

Storage

Shipment

Quality Issues Surface at the Customer
AFTER
Source-Level Purification
Refining Process

Storage +Continuous Membrane Polishing
Verified Clarity

Premium-Grade Shipment

For refiners and quality-focused fuel producers, membrane-grade purification at the tank turns fuel clarity from a tender liability into a verifiable product advantage.

Suitable Applications

Where This Approach Fits.

Refining & Blending Plants
Producers whose product grade depends on clarity and trace-contamination control.
Premium Fuel Brands
Suppliers bidding into high-end tenders where visual clarity scores. See application →
Oxidation-Prone Storage
Tanks where gum and oxidised resin form faster than conventional filters can catch.
Additive Reduction Programs
Operations seeking physical purification to reduce chemical additive dependency.
Bulk Storage
Facilities requiring repeated circulation and purification of stored diesel. See application →
Power Generation
High-standard diesel storage for generators and standby power. See application →

Producing premium-grade diesel?

Tell us your product standard, the quality problem you are seeing and your throughput. You do not need to select a model yourself — our engineering team will recommend the right purification configuration and explain the basis for the selection.

Get a System Recommendation