Solvent Oil

Production Equipment: Rectification Tower (core), Hydrofining Unit, Dearomatization Device, Raw Material Pretreatment Device; Storage and Transportation Equipment: Sealed Storage Tanks, Explosion-proof Transfer Pumps, Sealed Valves; Application Equipment: Solvent Blending Tanks, Cleaning Devices, Tail Gas Recovery Devices.

The core includes precision rectification, hydrofining, dearomatization, safe storage and transportation, and tail gas recovery technologies to ensure product quality, efficiency, environmental protection and safety.

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Product Introduction

Solvent Oil refers to petroleum fractions used as solvents, derived from crude oil distillation, refining and other processes. It has good solubility, volatility and stability, and is widely used in coatings, rubber, pesticides and other industrial fields. This article briefly introduces its types and characteristics, basic principles and system composition, core equipment and technologies, and operation processes, with Chinese-English comparison throughout.

Types and Characteristics of Equipment

Type

Naphtha can be divided into different types according to its source, distillation range and purpose. Each type of product has distinct characteristics and is suitable for different industrial needs, as follows (Chinese-English comparison): Solvent oil is classified by distillation range and chemical composition, each with distinct characteristics and clear core commonalities, as follows:

Classified by Distillation Range

Low Boiling Point Solvent Oil： Distillation 60℃-90℃ (representative 6#), extremely volatile and excellent solubility, used for rubber solvents, precision cleaning, etc., requiring sealed and fire-proof. Medium Boiling Point Solvent Oil: Distillation 90℃-150℃ (representative 120#, 140#), moderate volatility, most widely used, for coating dilution, pesticide solvents, etc. High Boiling Point Solvent Oil: Distillation 150℃-250℃ (representative 200#, 260#), weak volatility and good safety, used for coating plasticizers, rubber softeners, etc.

Classified by Chemical Composition

Alkane Solvent Oil: Low/aromatic-free, low-toxic and stable, used in high-end fields such as food packaging and electronic cleaning. Aromatic Solvent Oil: Strong solubility, low cost, slightly toxic, used in coatings, pesticides, etc., requiring ventilation during operation. Cycloalkane Solvent Oil: Low aromatic, mild odor, used for coating dilution, cosmetic solvents, etc.

Features

Most are colorless and transparent liquids, insoluble in water but soluble in organic solvents; chemically stable, flammable and volatile, some aromatics are toxic, requiring explosion-proof and ventilation protection during operation.

Solvent Oil

Premium Solvent Oil provides low volatility and consistent quality for various chemical and manufacturing applications.

Basic Principles and System Composition

Basic Working Principle

Production Principle: Using naphtha as raw material, obtain qualified products through rectification, hydrofining, dearomatization and other processes to separate fractions and remove impurities. Application Principle: Use solubility to achieve dilution, cleaning and other effects, rely on volatility to leave no residue, and high-boiling products can be used as plasticizers and softeners.

Overall System Composition

Composed of four units: production, storage, transportation and application, working together to ensure stable production, safe storage and transportation, and efficient application. Production Unit: Including pretreatment, rectification tower, hydrofining and other devices; Storage Unit: Special sealed storage tanks for classified storage; Transportation Unit: Explosion-proof pumps and special pipelines to prevent leakage; Application Unit: Blending, cleaning and other devices, with supporting tail gas recovery.

Basic Principles and System Composition

Follow the standardized process of "Raw Material Pretreatment → Production and Processing → Storage → Transportation → Application → Safe Disposal", as follows: Raw Material Pretreatment: Dehydrate and remove impurities from naphtha, send to rectification tower after passing inspection. Production and Processing: After rectification, hydrofining and dearomatization, send to storage unit after passing inspection. Storage Operation: Store in special sealed tanks by type, control temperature, and do explosion-proof and anti-static work. Transportation Operation: Transport with explosion-proof pumps and special pipelines, control flow and pressure, prevent leakage. Application Operation: Use after blending concentration, turn on ventilation and tail gas recovery, clean and recover after operation. Safe Disposal: Recover residual/waste solvent, standardize treatment of leaks, and do equipment maintenance.