Background Predicting hydraulic resistance, the temperature regime of non-isothermic pipelines transporting carbon dioxide, gaining increasing distribution is of great industrial importance. There is virtually no research in the literature on the prediction of hydrate deposition localization and intensity in such pipelines. Aims and Objectives Calculating hydraulic resistance, heat transmission and intensity of hydrate deposits in non-isothermic pipelines transporting hydrogen-methane mixtures in the presence of water. Establishing patterns of hydrate deposition in the presence of hydrogen. Methods Mathematical modeling and numerical calculations of hydraulic resistance, temperature and intensity of hydrate deposition in non-isothermic gaseous carbon dioxide pipelines. Results On the basis of mathematical modeling, it has been established that with increasing speed of transportation the intensity of hydrate depositation increases.