E. Roger Koehneke, 33, a vice president of the Citadel Corporation, a wholesaler of gasoline and fuel oil, of D.C., died of leukemia Monday at his home in Washington.

Mr. Koehneke, who was born in Baltimore, came to the Washington area in 1966 as a student at the University of Maryland. Follwing his graduation in 1970 with a degree in accounting, he was a photographer and then studied welding with a view to becoming ametal sculptor.

In 1974, he joined Citadel, where he became comptroller and then vice president. He remained with the firm until his death.

Mr. Koehneke first learned that he had leukemia about nine years ago. He became a volunteer with Hospice Car of D.C. last September. The organization provides assitance at home for the terminally ill and their families. The following month, he entered an experimental treatment program at Johns Hopkins Hospital in Baltimore, where he remained until December. He then came under the care of the hospice.

Despite his illness, Mr. Koehneke was able to oversee the design and construction of his own house in Washington. The work was completed while he was in the hospital.

Survivors include his wife, Judy, of Washington; his parents, Ruth and Paul Koehneke, of Timonium, Md.; one sister, Lynn Woelker of Munich, Germany, and one brother, James, Of Denver.

The family suggests that expressions of sympathy be in the form of contributions to Hospice Care of D.C., 1749 St. Matthews Court, Washington, D.C., 20036.