Production method of ship fuel oil

Abstract

The invention relates to a production method of ship fuel oil, which comprises the following steps: heating catalytic slurry oil, filtering through a precision filter to remove tiny catalyst granules in the slurry oil, mixing with hydrogen, heating, contacting the mixture with a residual oil hydrofining catalyst, a distillate hydrofining catalyst and a distillate hydrocracking catalyst to carry out catalytic hydrogenation reaction on the mixture, carrying out gas-oil separation and fractionation on the reaction product to obtain a tail oil fraction, and mixing the tail oil fraction with vacuum residual oil in different proportions to obtain the finished product. Under mild reaction conditions and lower hydrogen consumption, the method provided by the invention can greatly enhance the doping proportion of the catalytic slurry oil in the ship fuel oil by more than 75%, ensures the indexes of metals, ash and the like in the ship fuel oil to be not overproof, greatly increases the calorific value, improves the compatibility of the ship fuel oil, and ensures the production of the high-quality ship fuel oil product.

Description

technical field [0001] The invention relates to a method for producing marine fuel oil. Background technique [0002] According to BP energy statistics and Purvin & Gertz reports, the world demand for residual fuel oil in 2009 was about 450 million tons, of which the demand for marine fuel oil was 140 million tons. It is estimated that the world demand for residual fuel oil in 2020 will be 330 million tons. The amount of marine fuel oil will increase to 190 million tons. Due to the increase in international shipping volume, the consumption of marine fuel oil in 2020 will increase by 50 million tons compared with 2009, and the proportion of fuel oil will increase from 30% to about 60%. [0003] In 2009, my country's fuel oil consumption was 33.95 million tons, 17.95 million tons were self-produced, and 16 million tons were imported; among them, 9.2 million tons were used as raw materials for local refineries, about 11.95 million tons were used as fuel for furnaces, and 11.95...

AI Technical Summary

Problems solved by technology

[0014] The purpose of the present invention is to provide a method for producing marine fuel oil to overcome the shortcomings of the current domestic production of marine fuel oil, such as serious energy waste, high requirements for production conditions, and high production costs.

Images