Marine fuel oil and production process and device thereof

Abstract

The invention discloses marine fuel oil and a production process and device thereof. The marine fuel oil and the production process and device thereof have the advantages that the marine fuel oil is produced by blending FCC slurry, coal tar, catalytic diesel oil, methanol, ethanol, shale oil, vacuum residue and auxiliaries according to a certain proportion, the main indexes of the blended oil meet the quality requirements on 180# marine fuel oil in national standards (GB 17411-2015), the production is performed by using cheap raw materials which are easy to obtain, raw material cost is lowered to the maximum extent, multiple components of the marine fuel oil can replace one another and can be flexibly selected according to market quotations, and the adverse effect caused by raw material price fluctuation can be relieved; the blended oil is purified by a static separation manner, fine solid catalyst particles can be removed, a static separation device is improved, a traditional double-electrode separation manner is abandoned, static separation efficiency is increased effectively, the adding quantity of the relatively-cheap FCC slurry is increased, and raw material cost is reduced; by a three-electrode design, the utilization rate of device internal space is increased.

Description

technical field [0001] The invention relates to a fuel oil, a production method thereof and a purification device, in particular to a marine fuel oil, a production process and a device thereof. Background technique [0002] In recent years, with the prosperity of global trade and the rapid development of the coastal shipping industry, marine fuel oil has become my country's largest fuel oil user for many years. According to estimates from marine fuel oil suppliers, the demand for marine fuel oil in my country is growing at an annual rate of 5%. The rate of increase, the marine fuel oil market is booming day by day. Good market conditions make competition more intense, and suppliers are constantly reducing production costs in order to maximize profits. Therefore, preparing a high-quality and low-cost marine blending oil has important practical significance and broad market prospects. [0003] FCC oil slurry is a heavy component separated from the bottom of the catalytic crac...

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Problems solved by technology

[0005] In terms of blending methods, Chinese patent CN 102766489 A discloses a method for preparing marine fuel oil, which uses FCC oil slurry and catalytic diesel to blend to produce marine fuel oil. In order to fully settle the solid particles, a large amount of Catalyzed diesel oil (addition amount between 33-66% by mass fraction), resulting in higher cost of raw materials

Chinese patent CN 103642539 A optimizes the light components. FCC oil slurry is used as the main raw material. The light components use ethylene tar, hydrogenated tail oil, surfactants and different additives, which reduce to a certain extent The cost of raw materials, but the natural sedimentation method is used when separating solid particles. The separation effect of this method is not ideal and the separation time is long. It needs to settle for 10-24 hours, resulting in a substantial increase in time costs

In terms of separation device, U.S. Patent US 3928158 proposes an electrostatic liquid-solid separation device. This device adopts a design method in which the built-in columnar electrode is the positive pole and the shell is grounded as the negative pole. The high-voltage electric field generated by the columnar electrode makes the solid in the raw material oil Particles are adsorbed in the filler. This design method is more effective in smaller-sized devices. In the process of enlarging the device, the effect will be deteriorated due to the uneven distribution of the electric field.

Chinese patent CN 203187632 U improves the device by adding a heating and heat preservation system, but still adopts the traditional double-electrode design method, and the size of the separation pipe is only 50mm, which is only suitable for small static tests

Due to the small size of the columnar electrodes, the electrode spacing is usually designed to be small to ensure the separation effect, and the electric field distribution is uneven, which cannot meet the production requirements on an industrial scale. Enlarging the device size by increasing the applied voltage will bring high energy consumption and poor safety. The problem

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