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imports and exports, holding a daily capacity of up to 400,000 barrels of crude. The Taoyuan Refinery came on stream in 1976; after engineering revamping and building the additional second topping unit, its daily refining capacity is now 200,000 barrels of crude. In 2021, the total refined products was 8.846 million kiloliters of gasoline, 2.153 million kiloliters of aviation fuel, 5.474 million kiloliters of diesel, 3.079 million kiloliters of fuel oil, and 361 kilotonnes of LPG.
Taiwan’s increasingly stringent standards of environmental protection are largely in response to the demands of its people out of concern for their quality of life. At the same time, they exhibit increasing demand for a diverse range of oil-derived products. The company has gradually built additional refining facilities, such as reforming units, isomerization units, and gasoline/diesel desulfurization plant, an aviation fuel processing facility, together with normal paraffin, alkylation and residual fluid catalytic cracking (RFCC) units. CPC also plans to build VDU, SDA units and aromatic hydrocarbon extraction units in order to offer domestic consumers even better products and to improve production efficiency.
Optimization of refining to reduce pollutant emission
The EPA called for reductions in the sulfur content of gasoline and diesel fuel to under 10ppmw, of the aromatic hydrocarbon content of gasoline and diesel fuel to under 35vol%, and of the olefin content of gasoline to under 18 vol%, by 2011. By 2008, CPC had constructed a 30,000 barrels per day pyrolysis gasoline and hydro-desulfurization unit at the Taoyuan Refinery; a 20,000 barrels per day pyrolysis gasoline and hydro- desulfurization unit at the Dalin Refinery by 2009; and a 40,000 barrels per day diesel hydro-desulfurization unit at the Dalin Refinery by 2010. Furthermore, in 2011, a 18,000 barrels per day pyrolysis gasoline unit was moved from the Kaohsiung Refinery to the Dalin plant.
CPC began increasing its heavy oil conversion rate with the construction of an RFCC unit with a capacity of a 80,000 barrels per day at the Dalin Refinery. CPC also completed its testing and began volume production in 2013. CPC completed testing of the alkylation plant with a capacity of 14,000 barrels per day and began volume production in mid-2013; its operation has increased the value of our product and improved gasoline quality. In addition, to cope with the problem of acidic gas generated in the production process and to reduce the emission of the pollutant, CPC invested in the construction of a sulfur plant with a daily output of 250 tons, which started to produce qualified sufur products at the end of June 2014.
In addition, the No. 3 Hydro-desulfurization Unit at the Dalin Refinery was expanded to increase its high- sulfur crude refining capacity, lowering the cost of crude oil procurement and stabilizing the quality of the RFCC-unit’s feedstock. The revamped unit begans operation in March 2017, which increased the production to 40,000 barrels per day.
To cope with the consequences of the Kaohsiung Refinery closure, the Dalin plant’s capacity was expanded to include a 150,000 barrels per day atmospheric crude oil distillation unit (CDU); a 50,000 barrels per day condensate fractionating unit (CFU); a 40,000 barrels per day diesel hydro-desulfurization (DHDS); unit and a 30,000 barrels per day kerosene hydro-desulfurization (KHDS) unit. These units completed performance testing and began mass production in 2018, in so doing eliminating worries of the raw materials shortages (due to the closure of the Kaohsiung Refinery) needed for the future survival and development of Taiwan’s petrochemical industry. With the completion of that expansion project, the capacity of the Dalin Refinery was boosted from 300,000 barrels per day to 400,000 barrels per day at present, raising CPC’s overall daily crude oil refining capacity to 600,000 barrels per day.
Imported oil source distribution
Africa USA
Middle East
7.98%
52.63%
14
15
38.96%