Founded in 2009 with a registered capital of RMB 30 million, Dongying Liangxin Petrochemical Technology Development Limited Company is situated in Dongying City, Shandong Province. Strategically located adjacent to Shengli Oilfield—China’s second-largest petroleum base—our manufacturing complex benefits from direct access to raw material pipelines and refined hydrocarbon feedstock.

Over the past decade, the manufacturing site has evolved into a fully integrated chemical enterprise. As the primary refining and global sales arm for Junyuan Petroleum Group, the entity manufactures narrow-cut hydrocarbon solvents and specialty sulfur compounds that satisfy stringent multinational requirements. Our client base spans across Asia, Europe, North America, and the Middle East, serving energy conglomerates including CNPC and Sinopec.

By combining continuous technological refinement with rigorous operational protocols, complete end-to-end oversight is maintained across the supply chain. From fractional distillation and deep desulfurization to automated ISO tank filling and export clearance, quality consistency remains paramount.

Modern industrial applications require hydrocarbon fractions with minimal impurities, ultra-low aromatics, and consistent boiling points. Specialized refining processes employ continuous multi-column fractional distillation alongside specialized catalytic hydrogenation units to achieve precise separation.

In expanded polystyrene (EPS) manufacturing, tailored pentane blends serve as efficient physical blowing agents, providing consistent cell structure and controlled expansion rates. For the pharmaceutical and botanical extraction sectors, high-purity n-Hexane provides superior extraction yields while maintaining non-detectable residue levels compliant with international health standards.

Similarly, precision-grade n-Heptane functions as a reaction medium in organic synthesis and standard reference fuel testing. The facility also produces Dimethyl Disulfide (DMDS) and Di-tert-Butyl Polysulfide (TBPS), which are critical sulfur additives utilized for catalyst presulfiding in refinery hydrotreating and hydrocracking operations.

The industrial campus houses world-class distillation, hydrogenation, and storage systems designed for high-capacity continuous production. Integrated pipeline connectivity with regional refining hubs ensures uninterrupted raw material supply and consistent production schedules year-round.