Abstract Activated coke was obtained by CO2 activation with disused fine blue-coke serving as the main raw material and direct coal liquefaction residue (DCLR) as binder. The effect of the dosage and activation temperature of DCLR on the compressive strength of active coke and desulfurization were mainly investigated. The experimental results showed that the compressive strength of the activated coke increased first and then decreased with the increase in the amount of D-DCLR (DCLR after ash removal). When the amount of D-DCLR was 40%, the compressive strength of the activated coke was 492.55 N and the specific surface area was the highest (189.78 m2·g−1) among other samples. The results show that the activated coke has a high removal rate for low concentrations of sulfur dioxide. This work provides a way for efficient utilization of DCLR, which avoids waste of resources and environmental pollution. In addition, it is important for finding green and efficient blue-coke powder processing and utilization technology for the sustainable development of the blue-coke industry.

中文翻译：

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煤直接液化残渣对细蓝焦基活性焦性能的影响

摘要 以废弃细蓝焦为主要原料，煤直接液化残渣（DCLR）为粘结剂，通过CO2活化制得活性焦。主要考察了DCLR的用量和活化温度对活性焦抗压强度和脱硫效果的影响。实验结果表明，随着D-DCLR（除灰后的DCLR）用量的增加，活性焦的抗压强度先升高后降低。当D-DCLR用量为40%时，活性焦的抗压强度为492.55 N，比表面积最高（189.78 m2·g-1）。结果表明，活性焦对低浓度二氧化硫具有较高的去除率。该工作为DCLR的高效利用提供了一种途径，避免了资源浪费和环境污染。此外，寻找绿色高效的蓝焦粉加工利用技术对蓝焦产业的可持续发展具有重要意义。