* Lori Ryerkerk to leave company at end of Aug
* To be succeeded by Robin Mooldijk, head of Americas refining
* Ryerkerk oversaw major refining overhaul
LONDON, Aug 13 (Reuters) – The head of Royal Dutch Shell’s global refining operations Lori Ryerkerk will step down at the end of the month after five years in a job where she oversaw a vast overhaul of the business, according to an internal memo seen by Reuters.
Ryerkerk will be succeeded by Robin Mooldijk, who currently serves as Vice President Manufacturing Americas, responsible for the Anglo-Dutch company’s refining and chemical plants in the United States, Canada and Argentina.