Green Hydrogen: PetroChina's First 2,000 Nm³/h Alkaline Electrolysis System Passes Its Trial Run at Dushanzi
A 2,000 Nm³/h alkaline water electrolysis system, the first built for PetroChina, completed its trial run at the Dushanzi petrochemical site in Xinjiang and now feeds the site's hydrogen network.
Lead
A 2,000 Nm³/h alkaline water electrolysis system — described as the first such system developed and manufactured for China National Petroleum Corporation — completed its trial run at the PetroChina Dushanzi petrochemical company in Xinjiang, according to the Shaanxi provincial government and the provincial daily.
Facts
The system. Rated hydrogen production of 2,000 standard cubic metres per hour. The developer states the system has intelligent fault diagnosis and wide-band load regulation, and that it is designed for the fluctuating output of wind and solar power. (Sources: the Shaanxi Provincial Department of Industry and Information Technology (陕西省工业和信息化厅), 2026-06-12; Shaanxi Daily (陕西日报), 2026-06-11.)
The developers. The system was jointly developed by Baoji Oilfield Machinery Co. (宝鸡石油机械有限责任公司) and PetroChina Shenzhen New Energy Research Institute, among others. The development team states it solved a set of technical problems including high-current-density electrodes, precision manufacturing and lightweight integration. (Sources: the Shaanxi Provincial Department of Industry and Information Technology; Shaanxi Daily.)
The hydrogen purity. The provincial daily gives the hydrogen purity as up to 99.99%, with all indicators meeting the design standard. (Source: Shaanxi Daily, 2026-06-11.)
Where the hydrogen goes. The output has been tied into the Dushanzi petrochemical company's hydrogen pipeline network for refinery hydrotreating and chemical synthesis. (Sources: the Shaanxi Provincial Department of Industry and Information Technology; Shaanxi Daily.)
The operating environment. The system is stated to run stably under the wide temperature swings of Xinjiang, and is presented as engineering experience for scaling green hydrogen in the cold, arid conditions of northwest China. (Sources: the Shaanxi Provincial Department of Industry and Information Technology; Shaanxi Daily.)
Where this connects on this site
- Why a caustic duty is read against a temperature boundary as well as a concentration: Chemical Compatibility Chart for Pumps: What the Grade and the Temperature Actually Mean
- The order the inputs are read in for a duty like this — risk first, medium second, duty point third: Chemical Pump Selection Guide: Risk, Medium and Duty Point — in That Order
- The selector: chempumpselect.com
Sources
| # | Fact | Source |
|---|---|---|
| 1 | 2,000 Nm³/h alkaline water electrolysis system, first for PetroChina, trial run successful at 独山子石化, all indicators meeting the design standard; joint development by 宝鸡石油机械有限责任公司; technical problems solved including high-current-density electrodes, precision manufacturing and lightweight integration; intelligent fault diagnosis and wide-band regulation; adaptation to wind and solar fluctuation; stability under Xinjiang temperature extremes; hydrogen fed into the Dushanzi hydrogen pipeline network | 陕西省工业和信息化厅 — https://gxt.shaanxi.gov.cn/xw/dsxw/202606/t20260612_3647040.html |
| 2 | Project details, the developer's statement on the technology route, hydrogen purity up to 99.99%, 2,000 Nm³/h equivalent to the daily consumption of more than ten hydrogen buses, and use in refinery hydrotreating and chemical synthesis | 陕西日报（数字报） — https://esb.sxdaily.com.cn/pc/content/202606/11/content_2048608.html |
What the source does not state
The sources do not state the number of electrolyser stacks, the circulation pump package or its material specification, the direct-current power consumption in kWh per kilogram, the system's footprint, or the commercial terms of the project.
Correction note. A separate account circulating through an energy-industry portal states a post-purification purity of 99.9995%. The provincial daily cited above states 99.99%. We record the figure from the daily and flag the difference rather than reconcile it.
Update note
This item is a dated record of a publicly reported start-up. We append corrections rather than rewrite history; corrections are marked Correction with the date.