将下面补充内容，以论文书面正式英文的翻译下，注意连词的使用

该工艺最大的特点在于煤与氢气在高温下反应，在制备天然气的同时，还将获得苯等芳香族油类化合物，此外，在通过合成气制备天然气的过程中，氢气作为甲烷化反应的原料气体，将直接参与制备天然气的主要反应
The process is characterized by the reaction of coal and hydrogen at high temperature, in the preparation of natural gas at the same time, will also receive benzene and other aromatic oil compounds, in addition, in the process of synthesis of natural gas through the synthesis of hydrogen as the methanation reaction of raw materials Gas, will be directly involved in the preparation of natural gas main reaction