[en] Automatic translation: The direct coupling of the in high temperature reactors generated heat leads to nuclear coal gasification plants to a procedural coupling between nuclear power plants and proper gasification system (of the gas factory) and for technical reasons to a small distance between the nuclear power plant and the chemical plants of the Gas factory. This requires a pure electricity and steam generating nuclear power plants pose an additional risk Formation of ignitable mixtures from air and from the nuclear coal gasification plant possibly released Process gas that could explode. Process gas release in the vicinity of the nuclear reactor is thus of fundamental safety-related importance. It must be proven that there are no gas-air mixture clouds can form the explosion of which the reactor containment and other safety-relevant ones Damage or destroy parts of the reactor system can.