* Dollars rise as IMF delays Ireland's loan
* China raises reserves requirements, boosts oil imports
* IEA lifts global oil demand forecast, OPEC more cautious
(Updates with oil falling, OPEC, rising dollar)
By Una Galani and Robert Gibbons
LONDON, Dec 10 (Reuters) - Oil reversed earlier gains on Friday to trade 0.5 percent down after the dollar rose on renewed European debt woes, and fears about a Chinese rate hike offset the positive momentum from strong imports data.
"The market just continues to struggle in the high $80s. The Chinese rise in November imports and exports is supportive but being offset by the China Central bank raising reserves as well as the potential for an interest rate hike over the weekend," said Tom Bentz, broker at BNP Paribas Commodity Futures Inc in New York.
China's central bank on Friday increased the amount of money lenders must keep on reserve for the third time in one month, a move to mop up excess cash in the economy and rein in inflation. [
]U.S. crude for January <CLc1> fell by 54 cents to $87.82 a barrel at 1525 GMT, after being up by around 50 cents earlier on Friday and having hit a 26-month high of $90.76 on Tuesday. ICE Brent <LCOc1> lost 47 cents to $90.52.
The dollar index versus a basket of currencies <.DXY> rose 0.25 percent boosted by news that the International Monetary Fund postponed consideration of a 22.5 billion euro loan for Ireland due to differences in the Irish parliament [
]The dollar's strength pushed oil and U.S. stocks down despite news of a better-than-expected Thomson Reuters/University of Michigan Surveys [
]Imports by China, the world's second-largest crude user, jumped 22.1 percent last month from a year earlier to 5.09 million barrels per day (bpd), the fourth highest monthly average on record, data showed on Friday. [
]"In terms of the dynamic of China, I believe the data, the policy and the road map for reform is suggesting further sustainable strong demand," said Geoff Howie, sales and markets strategist at MF Global in Singapore. "We are still bullish. Asia is driving the price higher."
IEA, OPEC VIEWS DIFFER
Two of the world's most influential oil forecasters -- OPEC and the IEA - gave sharply different outlooks for 2011 on Friday, as the consumer's watchdog anticipated robust demand and producer group OPEC said supply was plentiful.
The IEA, an adviser to 28 industrialised countries, said in a monthly report world oil demand will be higher than expected next year and until 2015, increasing the need for crude from the OPEC producer group. [
]It lifted its 2011 oil demand growth forecast by 130,000 barrels per day (bpd) to 1.32 million bpd.
The OPEC forecast 2011 global oil demand growth would increase to 1.18 million barrels per day, only 10,000 bpd more than predicted in last month's report making the case for no change in supply policy when it meets on Saturday in Quito. [
]OPEC said it wanted an improvement in oil market fundamentals before increasing crude supplies, even if prices go to $100 a barrel.
"If it goes to $100 due to speculation, OPEC will not move," OPEC Secretary General Abdullah al-Badri said in Quito, Ecuador, where the group will meet on Saturday. [
] (Additional reporting by Alejandro Barbajosa in Singapore; writing by Dmitry Zhdannikov; editing by William Hardy)