What are the refining options for non-hydrogenated oil products (gasoline, diesel)?
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I hope everyone can summarize the situation: we have high levels of gums and olefins in the oil products, and the processing volume is very low, less than one ton per hour. What is the best way to handle this?
High levels of gums in oils can be removed through adsorption, while high levels of olefins can be addressed by blending the oils!
1. Acid-base refining is a very traditional processing method, but it results in significant losses of oil and makes it difficult to handle the acid residues; therefore, it is considered unreasonable and uneconomical nowadays. II. Hydrorefining is employed; the hydrorefining process for gasoline and diesel is highly mature, and the Fushun Petrochemical Research Institute is at the forefront of this field in China. Hydrogenation can remove various impurities, but it reduces the octane rating of gasoline; the gasoline fractions obtained after hydrogenation are best sent to reforming to increase their octane rating. Currently, hydrogenation refining is the predominant method used worldwide, while acid-base refining is almost completely phased out. Therefore, it is recommended to use hydrorefining. This post was last edited by Novice Scholar on 2007-12-12 01:27.]
Catalysts and additives widely used at present in China to reduce the olefin content in catalytic cracking gasoline； Two-stage riser catalytic cracking technology ； Selective Hydrodesulfurization Technology for Catalytic Cracking Gasoline ； Selective Hydrodesulfurization and Olefin Reduction Technology for Catalytic Cracking Gasoline ； Solid acid alkylation technology ； Technologies such as MIP and HRTM for catalytic cracking to produce abundant isoparaffins. The HRTM process recombines the components of wax oil catalytically cracked gasoline through extraction separation and distillation cutting, extracts aromatic components from the blended gasoline and diesel fraction, and after distillation cutting, incorporates them into gasoline in order to produce one or more high-octane grades of gasoline at low cost. It is also a method for producing high-value-added chemical light oil (ethylene feed) and heavy aromatic components as by-products. This process requires low investment and costs, and has good prospects for development. This post was last edited by A little bird on 2007-12-12 16:21]
The problem is that acid-base washing cannot be used due to environmental concerns, and hydrogenation refining is not feasible either because of the small volume of material to be processed and the high investment costs. What practical solutions exist? Our raw material processing volume is very low, around 1 ton per hour.
Could the moderator please be more specific regarding the adsorption method? The key is that we want to use an adsorption method that allows for continuous regeneration; the problem is that using clay for adsorption generates a large amount of waste clay that needs to be further processed； If molecular sieve catalysts are used for adsorption, is regeneration easy to achieve? Burned regeneration or solvent elution regeneration? Which method is simpler in terms of processing, with easier-to-achieve process conditions?