Biomass liquefied oil catalytic cracking deoxygenation catalyst

Abstract

The invention discloses a biomass liquefied oil catalytic cracking deoxygenation catalyst, which belongs to the field of catalysts. It is characterized in that it consists of the following components in mass percentage: 11.00-15.45% of Ni, 17.12-24.67% of ZrO2 and 59.88-71.88% of zeolite. The catalyst is prepared by an impregnation method, and its preparation steps include: (1) preparing dealuminated zeolite; (2) preparing ZrO2 / dealuminized zeolite; (3) preparing NiO / ZrO2 / dealuminized zeolite; (4) step (3) The NiO / ZrO2 / dealuminized zeolite obtained in ) is the catalytic cracking deoxygenation catalyst of biomass liquefied oil. Before the catalytic cracking reaction of biomass oil, the catalyst should be reduced in hydrogen at 700°C for 3 hours. The catalyst provided by the invention has better deoxidation rate and anti-coking performance, and in the catalytic cracking deoxygenation reaction of biomass liquefied oil, the deoxygenation rate of biomass liquefied oil reaches 38.87% under the condition of normal pressure and 500°C. The preparation method is simple to operate, and the adopted raw materials are economical and easy to obtain.

Description

technical field [0001] The invention relates to a catalyst, in particular to a biomass liquefied oil catalytic cracking deoxidation catalyst, which belongs to the field of catalysts. Background technique [0002] With the increasing demand for energy and the depletion of oil, seeking a new energy that can replace traditional fuels has become an inevitable requirement to solve energy shortages and maintain social development. Biomass energy is a renewable energy with a wide range of sources, including: wood and forest industrial waste, agricultural waste, aquatic plants, urban and industrial organic waste, animal manure, etc. Its advantages are low sulfur and nitrogen content, and little environmental pollution during processing; converting organic matter into fuel to reduce pollution is the main component of the future energy structure. However, the depth of utilization of biomass energy is not enough, and the conditions for industrialization are immature, especially in the...

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Problems solved by technology

The reaction conditions of this process are relatively mild, no hydrogenation is required, and the requirements for reaction equipment are not as strict as catalytic hydrogenation, so it has great development potential. At the same time, the yield of catalytic cracking refined biomass oil is low, the coking rate is high, and the catalyst life is short. Therefore, how to improve the activity, selectivity and anti-coking performance of the catalyst in this process has become the key to the research and the bottleneck that needs to be broken through urgently.