On the relationship between the daily output and annual output of methanol plants
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Could someone tell me the relationship between the daily production and the annual production of a methanol plant? For example, for a plant with an annual production capacity of 1.2 million tons of methanol, what is its daily production? Conversely, what is the annual output of a plant with a daily output of 5000 T/d? This post was last edited by jensse on 2009-4-16 11:43]
Just ask directly. In one year, it was 7,200 hours, and there were also years with 8,000 hours.
Typical power systems are calculated based on 5,500 hours of operation per year; I wonder what figure is used for chemical processing systems? Is there a unified standard?
Based on 8,000 hours per year and 330 days, with an annual production of 1.2 million tons, the daily production is 3,650 tons； At 5,000 tons per day, the annual output is 1.65 million tons.
8,000 hours per year is sufficient.
Such high utilization hours! This also means that, without taking market factors into account, there are only 31 days per year for maintenance or shutdown
Previously, it was mostly calculated on a yearly basis over 300 days; for example, if 1,000 tons were produced per day, the annual output would be 300,000 tons. Now, with the improvement in equipment and management standards, it is believed that annual maintenance and unplanned shutdown times can be reduced further; therefore, the annual operating time can be calculated as 330 days. For example, if 1,000 tons are produced per day, the annual output amounts to 330,000 tons. Since design capacity is often measured in terms of hourly output, the annual operating time is generally set at 8,000 hours (equivalent to 333.3 days) these days.