Kemicentrum is located in the northern campus area of Lund. Visiting address is Naturvetarvägen 14, 22362 Lund. From Lund city center you can get here by foot (20-30 min walk), by bike, bus or car.
From Sturup airport there are buses (https://www.flygbussarna.se/malmo) that take you to Lund (bus stop: Lund C) in just 35 min. Tickets can be purchased on the bus, and cost ca. 115 SEK (12 EUR). Once you are at Lund C, you can take a taxi (to “Kemicentrum, Naturvetarvägen 14”) or bus number 6 (green bus, exit LTH) or 166 (yellow bus, exit Ridhuset).
From Kastrup airport (CPH), you can easily get to Lund by train (Öresundstågen) in just 40 min. Buy your ticket at a vending machine (cost ca. 150 SEK or 15 EUR). All trains departing from Track number 1 will reach Lund. Once you are at Lund C, you can take a taxi (to “Kemicentrum, Naturvetarvägen 14”) or bus number 166 (yellow bus, exit Ridhuset).
At Kemicentrum, enter through the main entrance E (rotating glass doors), walk up the stairs straight ahead, and through the long wide hallway. Find your way to the Information Desk (center of the building on your left) and ask for your contact person, or simply call you contact person once you are inside the building.
Remember that just in case your credit card will not work in Denmark or Sweden, it is always good to carry some cash. EUR is a good currency to carry and change at the airport.
More info here: http://www.kc.lu.se/english/visitors/directions/