Huaneng GreenGen IGCC Project (Phase 2)
Capture: China Huaneng Group (52 per cent interest), seven Chinese energy enterprises (each 6 per cent interest) and Peabody Energy (6 per cent interest)
Transport and Storage: Not specified
LOCATION: Lingang Industrial Park, Binhai New Area, Tianjin, China
CO2 capture source: 400 MW demonstration integrated gasification combined cycle (IGCC) power unit in the Binhai New Area, Tianjin
CO2 storage site: All storage option types are under evaluation, with enhanced oil recovery (EOR) opportunities at the Tianjing Dagang oil field important
INDUSTRY (FEEDSTOCK): Power generation (sub-bituminous coal)
OVERALL PROJECT LIFECYCLE STAGE: Evaluate
CO2 CAPTURE CAPACITY VOLUME: 2 million tonnes per annum (Mtpa)
CAPTURE TYPE: Pre-combustion capture (gasification)
CAPTURE METHOD: Absorption chemical solvent-based process (Amine)
NEW BUILD OR RETROFIT: New build
CO2 CAPTURE START DATE: 2020
PRIMARY STORAGE OPTION: EOR important with onshore depleted oil and gas reservoirs and deep saline aquifer storage options also under review
STORAGE FORMATION AND DEPTH: 3,000 metres / 9,300 feet underground
TRANSPORTATION TYPE: Pipeline (onshore to onshore)
TRANSPORTATION DISTANCE TO STORAGE SITE (LENGTH OF PIPELINE): 50-100 km / 30-60 miles to Dagang Oil field (EOR option), 250-300 km / 150-180 miles to deep saline aquifer storage options
GreenGen Ltd. Co. China was established by the China Huaneng Group and seven other Chinese state-owned companies in January 2006. Peabody Energy joined the consortium in December 2007 as the only non-Chinese participant in the program.
The GreenGen program is variously discussed as a consisting of three stages or two phases. The goal of the GreenGen program in Tianjin is to develop a large-scale IGCC–CCS demonstration project in China.
The first stage (first phase) of the program involves the construction and operation of a 250 MW IGCC power plant, the first IGCC facility of such size in China. Equipment is sized for coal gasification of 2,000 tonnes per day of pulverized coal. Construction of the plant was completed in 2011. Since that time commissioning of the individual components has been underway in moving to steady-state commercial operation.
The second stage (first phase) of the program involves an emphasis on research and development and includes efforts to improve the IGCC polygeneration (power-heat-syngas) technology before moving onto larger demonstration. The second stage will also involve a smaller pilot plant (of around 230 kilowatt) which uses both fuel cell and hydrogen turbine to generate electricity while capturing CO2 for industrial re-use, most likely for EOR at the Dagang oil field. The amount of CO2 to be captured through this pilot plant is estimated at between 60,000-100,000 tonnes per annum. It is anticipated that construction of the second stage facilities will start in 2014.
The third stage (second phase) of the program involves construction and operation of a 400 MW IGCC power plant with associated carbon capture facilities capable of capturing up to two Mtpa of CO2. Construction of the proposed 400 MW IGCC plant will begin when the technology lessons from stages 1 and 2 of the program are learnt. Including the first stage (first phase) capacity, the total power generation capacity would be at around 650 MW. It is anticipated that carbon capture at the 400 MW power plant may begin around the 2020 timeframe. Storage locations are presently under evaluation and include EOR opportunities and geologic storage options.
The Tianjin plant, as an IGCC demonstration project of the CCS 863 Program, received financial support from the Ministry of Science and Technology (MOST) and was supported by the National Development and Reform Commission (NDRC) in its request for capacity development technical assistance from the Asian Development Bank (ADB).
Key project milestones
January 2006: GreenGen Co. established by China Huaneng Group and seven other Chinese state-owned companies.
December 2007: Peabody Energy joins the GreenGen Co. consortium as its only foreign shareholder.
November 2008: Huaneng (Tianjin) IGCC Co. Ltd. was co-established by GreenGen Co. and Tianjin Energy Investment Co. to be responsible for constructing and operating the first IGCC demonstration plant in China.
May 2009: NDRC formally approves construction of a 250 MW IGCC power unit.
July 2009: Construction starts on the 250 MW IGCC power unit.
November 2012: 72 + 24 hours commissioning test successfully completed.