Seek expert advice: Cost structure of urea coal-based and gas-based versions
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After searching for a long time, some sources mentioned 600 cubic meters of natural gas, while others cited 800 or even 1000. How much exactly? I am currently working on an industry report and would like to know the costs of two different manufacturing processes. I appreciate any guidance you can provide
This post was last edited by YHL512777 on 2009-9-8 at 18:04. It seems that the volume of gas required is 1000 cubic meters per ton of NH3, while for coal it’s 1200 kilograms per ton of NH3. Fertilizers produced using gas are no longer viable due to the high costs resulting from rising gas prices; therefore, relying on coal remains the only option if one wants to make a profit.
What you say isn’t correct either. Currently, the costs for enterprises using gas are around 1300, while those using coal have higher costs, at around 1800, due to the rise in coal prices. 2# YHL512777
This post was last edited by YHL512777 on 2009-9-8 at 18:07. My friend is right; currently, the price of gas has not been adjusted. Taking advantage of the available resources, the price of gas will rise in the future, as China has limited gas resources that need to be made available for people to use for cooking. As for coal, it depends on the type of furnace used to produce gas – if it’s a atmospheric-pressure furnace, which belongs to the old \"three highs and one low\" category, then its price should be around 1,800 yuan. If it’s a pressure-based pure-oxygen gas production furnace, the cost would be a little over 1,000 yuan.
A rough estimate, so it might not be very accurate! We used to talk about natural gas consumption! Around 1145 M3 per ton of ammonia, I guess.
Given the current downturn in the entire industry, if the amount is 145 M3 per ton of ammonia, the costs will definitely be unaffordable; the only solution is to stop production! However, in the atmospheric pressure batch gas generation ammonia synthesis process, the gas consumption is around 1145 M3 per ton of ammonia.
I’ve learned something. In that industry, do coal-based urea manufacturers use more atmospheric-pressure reactors, or are it the pure-oxygen reactors as you mentioned? 4# YHL512777
5# *aohong30 Thank you for your answer above. Could you please help me analyze whether this information is correct? For enterprises that use gas as a fuel source and are driven by steam turbines, the consumption rate is 1000 cubic meters of gas per 10 units of electricity； In the case of electric drive, the specific consumption is 920 cubic meters plus 750 kWh of electricity. For coal-based enterprises, the specific consumption is 600 KG of raw coal + 955 KG of fuel coal + 1,032 kWh of electricity.
It is said that an increase in natural gas prices is inevitable, and it will be mainly used for domestic purposes; as a result, synthetic ammonia and urea produced from gas are likely to face even tougher times.
The use of urea under pressure should also be curbed, as most large-scale fertilizer manufacturers belong to Sinopec or CNPC; they take advantage of their favorable positions and dominate many markets in the country. It’s time to put an end to this unfair competition.
ZXW: Coal-based urea – atmospheric-pressure gas generation furnaces account for the majority of production capacity (this can be verified online). These technologies are outdated and costly; capable owners are planning to upgrade them in order to cope with the fertilizer market. Those who are unable to carry out such upgrades in this round of competition will face difficulties in surviving.