Assessing the performance of commercial and biological gas hydrate inhibitors using nuclear magnetic resonance microscopy and a stirred autoclave

► The results showed that MRI is an effective tool for the evaluation of the performance of KI. ► This technique was especially valuable to evaluate limitedly available biological KI's. ► MRI and gas uptake experiments showed the same trends in nucleation times. ► Microscopic (MRI) and macroscopic (gas uptake) experiments were in good agreement for growth assessment.