Comment Re:It's about time. (Score 1) 113
It's becoming a booming industry in China. They achieved 6N9-grade purity hydrogen from their natural gas fields, which have a content of less than 0.05 percent (other exploited fields have content of 1.0-7 percent), at a commercially viable cost a year ago. That's your "rubbish quality helium". Now there are a dozen companies replicating their work.