生物质气化焦油处理技术的最新研究进展

Advance in tar removal technology of biomass gasification

生物质气化是目前常见的生物质能转换技术,其过程中产生的焦油不但会降低气化燃气的利用价值,而且对气化设备以及人和动物具有极大的危害性。从焦油的特性出发,论述了几种焦油的控制方法:吸收分离焦油的方法—机械/物理方法,如洗涤器、旋风分离;裂解焦油的方法—催化裂解和高温裂解;条件控制的方法—操作参数法。比较了上述几种方法,指出不同焦油处理方法的优缺点及工程应用。

Biomass gasification is one of the common biomass conversion technologies. Tar produced in the process, not only can reduce gasification gas utilization value, but also has great harmfulness on gasification equipment, people and animals. In this paper, based on the features of tar, tar control methods are discussed as follows： the tar absorption separation method ,the mechanical/physical methods such as the scrubber, cyclone separation, pyrolysis method such as catalytic cracking and high temperature pyrolysis tar, condition control method and the operation parameter method. Compared the several methods, the advantages and disadvantages of different tar processing methods and engineering application are points out in the end.