Abstract: We studied the economic dynamics performance of the lignin diesel conforming to the national standard<GB 252-2000 light diesel oil>. From the engine full load speed characteristics contrast experiment, the measured power and torque of lignin diesel and No.0 diesel oil were equivalent, in accordance with the amount of pure diesel in lignin diesel, and the oil-saving rate of lignin diesel was 10%-15% less than that of No.0 diesel fuel on average. From the engine load characteristics contrast experiment, under the same torque and in accordance with the amount of pure diesel in lignin diesel, oil-saving rate of lignin diesel was 10%-15% less than that of No.0 diesel fuel on average. By the engine free acceleration condition emissions test, there was no statistical differences about exhaust emission by lignin diesel and No.0 diesel.

Key words: lignin, engine, new energy, lignin diesel, bench test, energy saving