Methanol pyrolysis gas pressure swing adsorption agent and preparation method thereof

Abstract

The invention discloses a methanol pyrolysis gas pressure swing adsorption agent, which consists of the following ingredients in parts by weight: 1-10 parts of inorganic base, 2-5 parts of double salt, 1-5 parts of sulfite, 0-10 parts of antioxidant, 1-5 parts of aluminium oxide, 2-5 parts of kieselguhr, 1-5 parts of molecular sieve, 1-3 parts of attapulgite and 2-5 parts of activated carbon. Theformula and the preparation method thereof specifically disclose the adsorption agent. The adsorption agent is capable of quickening the reaction rate of waste engine oil in a methanol pyrolysis process, in addition, the purity of non engine oil in a pyrolysis process can be improved, meanwhile, the adsorption agent is nontoxic, does not pollute environment and is harmless for the human body.

Description

technical field [0001] The invention relates to an adsorbent, in particular to a methanol cracking gas pressure swing adsorbent and a preparation method thereof. Background technique [0002] In recent years, the world's oil resources have become increasingly scarce, but with the rapid economic growth, the society's demand for oil products is increasing day by day. However, millions of tons of waste engine oil (including hydraulic oil, waste lubricating oil, residual oil, etc.) Turning waste into treasure is particularly important. [0003] At present, the methods of refining waste engine oil include acid-base refining, vacuum distillation, hydrofining, etc. Among them, hydrofining is recognized as the most effective, thorough and environmentally friendly method, which not only removes the elemental sulfur in the oil , hydrogen sulfide, mercaptan, and sulfide removal, and can also remove difficult-to-remove thiophene sulfur compounds, and hydrofining can significantly impr...

AI Technical Summary

Problems solved by technology

Among them, the water electrolysis hydrogen production method has high energy consumption and is not cost-effective and unsuitable for industrialization; natural gas and coal conversion hydrogen production is limited by local resources, and it is necessary to choose areas rich in natural gas or coal resources, and its investment is large and the process is complicated; methanol cracking hydrogen production process It is relatively simple, easy to operate and easy to control, and the raw material methanol is a basic chemical raw material with a wide source and convenient transportation

And now there is an excess capacity of methanol, finding a way to use methanol is also very in line with the current actual needs, but the existing methanol cracking process often produces residues, which often cause impurities and impurities in non-engine oil during the refining process In the case of this method, the cost will increase in the process of using it, and it will also increase the workload. In order to solve the above technical problems, a new technical solution is proposed