MTBE producers in Shandong led the sharp increase although gasoline sector demand approached saturation
Chinese butane imports continued to grow strongly in the first quarter despite reduced availability from the Middle East, mainly on firmer feedstock demand from the MTBE gasoline component sector in south China's Shandong province following the lifting of Covid-19 restrictions. But higher domestic refinery output of butane and demand saturation could stall import growth in May and June.
China brought in around 1.21mn t in the first quarter, up by 61,000t, or 5pc, from a year earlier, customs data show. This was entirely driven by arrivals at Shandong, which rose by 150,200t owing to stronger demand from local MTBE producers while imports to other provinces declined by 88,500t. About half of China's butane imports were used as fuel in the residential, commercial and industrial sectors, while 25pc went to the gasoline sector and 25pc to petrochemical producers.
Gasoline blending was the main driver of butane demand growth in the country in 2022. MTBE is a high-octane component used by blenders produced from butane and isobutane. China's MTBE production capacity stood at around 24mn t/yr and actual output at 13mn-14mn t in 2022, according to an MTBE producer in Shandong. About 30pc of this capacity is integrated with refineries, while the rest are independent facilities, of which 10mn t/yr is found in Shandong, the producer says.
Beijing removed travel restrictions across the country late last year, boosting demand for gasoline and in turn MTBE. Domestic wholesale butane prices have meanwhile remained elevated compared with propane and propane-butane mix. This has been particularly true in Shandong, raising the attraction of imports.
Rising gasoline consumption and demand for MTBE has also stimulated growth in butane production at Chinese refineries. Private-sector Shenghong Petrochemical's 320,000 b/d Lianyungang plant in east China's Jiangsu province started up in December 2022 and has supplied around 1,000 t/d of isobutane domestically since the early stages of this year. State-controlled PetroChina's 400,000 b/d Jieyang refinery in south China's Guangdong province began operations in February, supplying 600-800 t/d of isobutane from late March. And Zhejiang Petroleum and Chemical's 800,000 b/d Zhoushan refinery in Zhejiang Province increased LPG production by around 800-1,000 t/d, mostly of butane, from March.
But demand for MTBE from the gasoline sector became saturated early this month, with many Shandong producers running at high rates. MTBE prices had been expected to start declining in the second half of May, resulting in producers cutting their butane and MTBE stockpiles. The government caps retail gasoline and diesel prices based on a rolling average of crude costs every 10 working days, with the next due to be announced at the end of 16 May. WTI crude prices are so far around 7.5pc lower at just under $72/bl compared with the end of the last retail assessments on 28 April, meaning gasoline and diesel prices should decline.
No requirement
June MTBE demand might also fall as the chance to export cargoes next month closed in early May, an east Chinese LPG importer says, meaning no extra domestic MTBE output or imports of butane will be needed. China's gasoline demand might have also neared saturation, after the government on 11 May issued oil product export quotas of 9mn t (73mn bl) to state-owned refiners, compared with 4.5mn t for the second batch last year. This reflects gasoline output exceeding domestic consumption, meaning China needs to export supplies to balance the market.
A newly opened 1mn t/yr ethylene cracker at state-controlled Sinopec's refinery in Hainan province is only equipped with refrigerated propane storage and will consume the plant's butane production. A drop in butane prices could also encourage more blending of butane in propane-butane mix in cylinders this summer, offsetting some of the easing demand, a south Chinese importer says.
China butane imports by region | '000t | ||
2022 | 1Q23 | ±% 1Q22 | |
Shandong | 1,190.2 | 300.9 | 99.6 |
East China | 1,997.9 | 366.6 | -12.5 |
South China | 1,900.0 | 440.8 | 4.7 |
Others | 740.2 | 105.4 | -34.6 |
Total | 5,828.3 | 1,213.7 | 5.4 |
—China customs |
