Method for preparing biodiesel by using FCC spent catalyst loaded acid to catalyze cracking of black rosin

Abstract

The invention discloses a method for preparing biodiesel by using FCC (fluid catalytic cracking) spent catalyst loaded acid to catalyze cracking of black rosin. The method mainly adopts the technical scheme that the method comprises the steps of using a roasted activated FCC spent catalyst as a carrier to load acid with a dipping method, drying, obtaining a high-activity FCC spent catalyst loaded acid catalyst, using the low-grade residue black rosin produced in a rosin production process as a raw material and the loaded acid modified FCC spent catalyst as the catalyst, charging CO2 or N2 as protective gas, performing a black rosin ordinary pressure catalytic cracking reaction for 0.5-4h at 250-300 DEG C and at a stirring rate of 100-500r*min<-1>, washing, filtering, obtaining a compound rosinyl biodiesel raw material, mixing, and compounding with 0# petroleum diesel to form the rosinyl biodiesel. According to the method, the FCC spent catalyst modifies the low-grade industrial by-product black rosin of a rosin enterprise to prepare renewable new energy with a high added value, and the method has economic and environmental benefits.

Description

technical field [0001] The invention relates to the activation, modification and regeneration of solid waste in the petrochemical industry and its application in the chemical deep processing of low-grade non-grain biomass resources and the field of biomass energy, in particular to a method for preparing biodiesel by cracking black rosin. Background technique [0002] Fluid catalytic cracking (FCC for short) is the most important way to lighten heavy oil. The catalyst or catalyst used is the most widely used additive in the petroleum refining industry. Due to carbon deposition, wear and heavy metal The annual consumption of petroleum refining catalysts in the world is more than 400,000 tons, of which FCC catalysts account for about 86%. FCC waste catalyst not only pollutes the environment, but also causes a great waste of resources. Taking the 5 million tons / year heavy oil catalytic cracking unit as an example, about 13kt of FCC waste catalyst is unloaded every year, and the...

AI Technical Summary

Problems solved by technology

Patents CN1687216A and CN200910155887.0 disclose methods for preparing biodiesel from rosin. Both methods need to use high-quality rosin products as raw materials, and rosin can also be used to prepare various fine chemicals such as hydrogenated rosin, disproportionated rosin, and rosin ester. It is an excellent raw material for organic synthesis; at the same time, it is necessary to use activated clay prepared from bentonite as a catalyst, and to add solvents or reagents such as maleic anhydride, turpentine and glacial acetic acid, which not only increases the cost and cost of synthesizing biodiesel The discharge of solid waste also pollutes the environment