The work is devoted to investigation of catalysts and adsorbents used in the production of ammonia, methanol, and formaldehyde, hydrogenation of various organic compounds, defluorination of wet phosphoric acid, adsorptive wastewater treatment, and inhibition of combustion chain reactions. Main approaches for the synthesis of adsorption-catalytic systems, governing the composition, structural and textural properties and providing specific functionality, were studied. Those included mechanochemical synthesis and activation, surface modification, precipitation, impregnation, etc. For citation: Kunin A.V., Ilyin A.A., Morozov L.N., Smirnov N.N., Nikiforova T.E., Prozorov D.A., Rumyantsev R.N., Afineevskiy A.V., Borisova O.A., Grishin I.S., Veres K.A., Kurnikova A.A., Gabrin V.A., Gordina N.E. Catalysts and adsorbents for conversion of natural gas, fertilizers production, purification of technological liquids. ChemChemTech [Izv. Vyssh. Uchebn. Zaved. Khim. Khim. Tekhnol.]. 2023. V. 66. N 7. P. 132-150. DOI: 10.6060/ivkkt.20236607. 6849j.