Sacramento-based Pacific Ethanol Inc.'s second-quarter profit rose more than five-fold from a year earlier as its sales almost doubled. The ethanol producer posted $5.09 million in net income available to the company, up from $1.01 million in the year-earlier quarter. Both figures exclude $315,000 in dividends paid to preferred stockholders. Revenue rose 86 percent to $422.9 million, Pacific Ethanol said in a statement Wednesday. Get business headlines every day by signing up for SBJ's free…