Despite the bottlenecks in passenger traffic, the operator of Frankfurt Airport has raised its forecast for annual passenger traffic at the German travel hub. Instead of 39 million to 46 million, 45 million to 50 million passengers are expected in Frankfurt this year, airport services company Fraport said of its home base of operations in an earnings report on Tuesday. Thanks to the sale of its stake in China’s Xi’an Xianyang International Airport, day-to-day profits, or earnings before interest, taxes, depreciation and amortization (EBITDA), are also expected to be higher than previously expe…