Combustion engines will likely have a place for a long time. Large equipment just doesn't do well on battery power. They can't get the required runtime. Also, in places where they are used, electrical power is often limited.

Hydrocarbons are an excellent way of storing energy. We will also need to overproduce renewables, to keep grids stable. Synthetic hydrocarbons could be a good solution to both issues. Currently, they are nowhere close to competing with fossil fuels, but that will change in time.