A 146 km Supercritical CO₂ Pipeline and a 900,000 t/y Purification and Boosting Station Break Ground in Shaanxi
Yanchang Petroleum has begun a full-chain CCUS project in Yulin, Shaanxi — a 900,000 t/y CO₂ capture and purification unit feeding a 146 km supercritical CO₂ pipeline.
Lead
On 12 June 2026, Yanchang Petroleum started construction on a full-chain CCUS demonstration project at the Jingbian industrial park in Yulin, Shaanxi.
The project pairs a new 900,000 t/y CO₂ capture and purification unit with a 146 km (91 mile) supercritical CO₂ pipeline designed to move 2.8 million t/y, feeding CO₂ into more than 170 oil wells across three blocks.
Facts
Scope and cost. Total investment RMB 1.64 bn. The 146 km (91 mile) pipeline is the longest of its kind in western China, with a 111 km (69 mile) trunk line. Design throughput 2.8 million t/y of CO₂. (Source: Science and Technology Daily, 2026-06-13; Shaanxi Daily (陕西日报) via the Shaanxi channel of People's Daily Online (人民网陕西频道), 2026-06-13.)
The capture and boosting station. A new 900,000 t/y CO₂ capture and purification unit at the Yulin Coal Chemical complex captures high-concentration CO₂ from a low-temperature methanol wash unit's tail gas.
The CO₂ is sent through the pipeline in supercritical state to three oilfield blocks — Tianciwan and Yangmijian in the Jingbian plant area, and Huaziping in the Xingzichuan plant area — serving more than 170 wells. (Source: Shaanxi Daily via the Shaanxi channel of People's Daily Online, 2026-06-13.)
Schedule. The capture works are about 35% complete as of August 2026, and are expected to reach mechanical completion by the end of 2026.
The pipeline and injection works are scheduled for completion by end-June 2027. (Source: the Yulin Municipal People's Government (榆林市人民政府), 2026-08-04, quoting the project's construction command.)
Economics as stated by the project. Pipeline transport is projected to cut CO₂ transport cost from RMB 0.8 per tonne-kilometre by road tanker to RMB 0.5 by pipeline, according to a calculation by the Jingbian plant area's deputy chief engineer. (Source: Shaanxi Daily via the Shaanxi channel of People's Daily Online, 2026-06-13.)
Track record behind the project. Yanchang Petroleum reports existing capability of 300,000 t/y capture and 410,000 t/y injection and enhanced-oil-recovery, with more than 500,000 t of CO₂ injected cumulatively and recovery in the demonstration area improved by about 8 percentage points.
The project passed China's National Energy Administration filing and review in November 2025. (Source: Shaanxi Daily via the Shaanxi channel of People's Daily Online, 2026-06-13.)
Regional context. Yulin's current CO₂ capture capacity across operating projects is 1.3 million t/y.
Three projects under construction — this one, an integrated new-energy-plus-CCUS project, and a 4 million t/y CCS project — are expected to lift the city's capture and transport capacity above 18 million t/y. (Source: Shaanxi Daily, 2026-08-12.)
Where this connects on this site
- Specialty Gas Compressor Selection Guide: From Gas to Machine Type
- Diaphragm vs Piston vs Screw Compressors: A Comparison Table
- CO₂ compression and the dry-ice question — next batch of technical articles on this site
- gascompressorselect.com
Sources
| # | Fact | Source |
|---|---|---|
| 1 | Start of construction 2026-06-12, Jingbian industrial park, scope, 146 km pipeline, 111 km trunk line, design throughput 2.8 Mt/y, total investment RMB 1.64 bn, capture mechanical completion end-2026, pipeline completion end-June 2027, 20-year injection and 1.1728 Mt incremental oil, 1.2 Mt water saving | 科技日报 — https://www.stdaily.com/web/gdxw/2026-06/13/content_531695.html |
| 2 | 900,000 t/y capture and purification unit, three blocks, 170+ wells, cost per tonne-kilometre 0.8 → 0.5, prior track record 300,000 t/y capture and 410,000 t/y injection, NEA filing November 2025 | 陕西日报 via 人民网陕西频道 — https://sn.people.com.cn/n2/2026/0613/c186331-41609391.html |
| 3 | 35% capture progress, completion schedule, RMB 1.64 bn investment, 146 km pipeline | 榆林市人民政府, 榆林日报 — https://www.yl.gov.cn/ywdt/ylyw/202608/t20260804_2119153.html |
| 4 | City-level capture capacity 1.3 Mt/y now; three projects to lift capacity above 18 Mt/y | 陕西日报 — https://www.sxdaily.com.cn/2026-08/12/content_20078205.html |
What the source does not state
The published project documents do not state which compression route will be used at each stage of the chain.
Update note
Append-only. Corrections marked Correction with date.