A、0.1
B、0.3~5
C、6~7
D、0.2
第1题:
A、150mg/m³(100ppm)
B、30mg/m³(20ppm)
C、15mg/m³(10ppm)
第2题:
A、>0
B、≥30
C、≥50
D、≥75
第3题:
天然气含H2S多少的分类Classification of how much H2S natural gas contains()
A.无硫或微含硫天然气 H2S和CO2含量符合管输要求,不需要净化The content of H2S and CO2 in sulfur-free or slightly sulfur-containing natural gas meets the requirements of pipeline transportation and does not require purification;#B.低含硫天然气 H2S含量约为0.0001~0.5%(体积)H2S content of low-sulfur natural gas is about 0.0001 ~ 0.5% (volume);#C.中含硫天然气 H2S含量约为1~1.5%(体 积),CO2含量约为6~8%(体积)H2S content of natural gas containing sulfur is about 1-1.5% (volume), and CO2 content第4题:
A、10ppm
B、20ppm
C、50ppm
第5题:
天然气中含硫量是指()的含量。
A.硫磺
B.硫酸根
C.硫化氢或总硫
D.二氧化硫