The suitable reactor type is the fluidized bed reactor. Fluidized bed reactors are commonly used in the pyrolysis of biomass because they offer several advantages for this process such as:

- Efficient heat transfer

- Residence time control

- Minimization of reactor fouling

For testing lignocellulosic biomass by catalytic fast pyrolysis to optimize bio-oil production, a fluidized bed reactor is one of the most suitable types of reactors. Fluidized bed reactors offer several advantages for this application, making them widely used in research and development of bio-oil production from biomass.

Here's why a fluidized bed reactor is suitable:

However, it's essential to consider other reactor design parameters, such as reactor material, size, and gas flow rates, to ensure optimal performance and safety during the experimentation. Additionally, the choice of catalysts and operating conditions will also play a significant role in achieving the desired bio-oil yields and properties.

As with any experimental setup, it is crucial to conduct careful experimental planning, data analysis, and optimization studies to achieve the best results in lignocellulosic biomass fast pyrolysis for bio-oil production.

If you want to do the catalytic fast pyrolysis, then a fluidized bed reactor is suitable for bio-oil optimization. But if you are a beginner in pyrolysis, first try to do the experiment in a fixed-bed reactor to get an idea of how the yield and temperature vary for your process.

In collecting a bio-oil, after the reactor part, a unit attached to condense a large amount of vapour into bio-oil is also important. Make sure to maintain the proper temperature and leak-free arrangements for condensing all the vapours into bio-oil.

The most suitable type of reactor for testing lignocellulosic biomass by catalytic fast pyrolysis to optimize bio-oil production is an ex-situ catalytic fast pyrolysis (CFP) reactor. In an ex-situ CFP reactor, the biomass is first pyrolyzed in a fast pyrolysis reactor to produce bio-oil vapors. The bio-oil vapors are then passed through a separate reactor containing a catalyst, where they are upgraded to produce a higher quality bio-oil with a higher yield.

Ex situ CFP reactors are advantageous for testing lignocellulosic biomass because they allow a high degree of control over the reaction conditions. This is important because the optimal reaction conditions for CFP vary depending on the type of biomass and catalyst being used. Additionally, ex-situ CFP reactors are easier to scale up than in situ CFP reactors, which makes them more suitable for commercial applications.

Here are some specific examples of ex situ CFP reactors that are suitable for testing lignocellulosic biomass:

• Fixed-bed reactor: This is the simplest type of ex-situ CFP reactor, and it is commonly used in laboratory-scale experiments. The catalyst is packed into a bed in a fixed-bed reactor, and the bio-oil vapors flow through the bed. Fixed-bed reactors are relatively easy to operate and maintain, but they can be prone to channeling, which can reduce the efficiency of the reaction.
• Fluidized-bed reactor: In In a fluidized-bed reactor, the catalyst is suspended in a gas stream. This allows for better contact between the bio-oil vapors and the catalyst, which can improve the efficiency of the reaction. Fluidized-bed reactors are more complex to operate and maintain than fixed-bed reactors but they can be scaled up to larger capacities.
• Circulating fluidized-bed reactor: This is a type of fluidized-bed reactor in which the catalyst is continuously circulated between a reactor and a regenerator. This allows for the catalyst to be regenerated continuously, which can extend its lifetime. Circulating fluidized-bed reactors are the most complex type of ex-situ CFP reactor, but they offer the highest potential for efficiency and scalability.

The best type of ex-situ CFP reactor for your specific needs will depend on a number of factors, including the scale of your operation, the type of biomass you are using, and your budget.