What are the effects of hydrogen impurities used in float glass production on glass quality?
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The hydrogen used in the company’s float glass production line comes from ammonia decomposition units, which makes it costly. Meanwhile, we have coke oven gas from our coking plant, which contains a high level of hydrogen; therefore, we are considering whether to use this coke oven gas to produce hydrogen directly in order to reduce costs. There were many different opinions during the discussions, mainly due to concerns that changes in the source of hydrogen could lead to changes in impurities, thereby affecting the quality of the glass. So I’m turning to the knowledgeable Haoyou users: are there any actual applications in this industry, and what are the results? If not, are there other methods for producing hydrogen such as methanol and natural gas that are actually used in the glass industry, and what are their effects? Please give some advice! ! ! !
Hello, OP. Currently, in industry, hydrogen can be produced from coke oven gas with a purity of five nines, with impurities being only trace amounts of methane and nitrogen. Nothing else can be detected. It is currently used as an annealing shielding gas on the cold rolling production lines in steel mills. There are many similar cases. I wonder what the quality requirements are for hydrogen in float glass? If a purity of 5 nines can ensure quality, then it can be produced using coke oven gas. If necessary, you can send me the relevant data parameters for further discussion. My email is scly8844@163.com
What is the typical hydrogen demand for float glass production lines? We have a methanol reformation unit, with hydrogen purity of 5 nines