I have a question regarding the production capacity of coking projects

1. The number of holes is related to production capacity; the more holes there are, the greater the production capacity under the same conditions； 2. The height of the carbonization chamber is 4.3m, 5.5m, 6.0m, 6.25m, 7.0m, 7.63m, etc ； The 3.1×100t/h dry quenching unit means that 100 tons of coke can be quenched per hour; its production capacity cannot reach over 1.5 million tons per year. 4. Such projects generally require the installation of generator sets to generate electricity using waste heat boilers.

1. The number of holes represents the number of carbonization chambers; the more carbonization chambers there are, the more coke can be produced. 2. The carbonization chamber is the place where coal is used to produce coke; it functions like a house, with its height representing its overall size, and the useful height being the actual usable part of it. 3. The designed production capacity of this set of equipment is 800,000 units; it cannot handle much more than that under overload conditions, while two sets can achieve a production volume of over 1.5 million units per year

1. If such a project requires the installation of generator sets, what should be the capacity of those generator sets?； If one does not bring their own generator set but relies on electricity from the grid, is such a possibility existing? ； How much electricity does such a project consume per year? 2. Regarding the production equipment of this project, can it be understood as follows: (two 45-hole, 5.5m single-heating type ramming coke ovens, of the JNDK55-05 model). Using dry quenching (plant capacity of 1×100 t/h) already represents the maximum production load for the project. For example, for 1.5 million tons or 2 million tons, what should the corresponding production facilities be like? What production capacity can the 2×55-hole JNDK55-05 type ramming coke oven achieve? 3. What are the differences in technology between wet quenching and dry quenching of coke, and which method is more advanced? 4. How many tons of coking coal are required annually for this project, and are other types of coal needed for blending? According to available information, 1 ton of coke requires 1.3–1.4 tons of coking coal. The current price of coking coal is around 1,400 yuan per ton, while the price of coke is around 1,500 yuan per ton. Based on this calculation, there appears to be an inversion of costs. However, the project owner claims that profits are primarily generated from by-products such as coke oven gas, ammonium sulfate, crude benzene, sulfur, light oil, dephenolized oil, and crude phenol. Is this claim valid?

1. Generator sets are installed primarily to recover the sensible heat from red coke, rather than to achieve complete self-sufficiency in electricity supply. The specific capacity is unknown; those who know it please reply. Our factory only has this plan for now. 2. The plant’s capacity is 1×100 t/h, which means that with one dry quenching furnace in place, the maximum production capacity is 100 tons per hour. I don’t know much about ramming furnaces: Our plant’s 2X60-hole, 6-meter tall top-loading furnaces have an annual production capacity of 1.2 million tons. For reference. 3. Of course, dry quenching is the superior method; in wet quenching, water is used to extinguish the red coke, while in dry quenching, nitrogen is used to do this and heat energy is recovered as well. The quality of the coke is also better in this case. 4、That’s more or less the situation for standalone coking plants; as for the prices of coal and coke, there are quite a lot of variables at play.

1. If such a project requires the installation of generator sets, the capacity of these generators should be consistent with the project’s design capacity; it is advisable to consult the design institute for this purpose； If one does not bring their own generator set and instead uses electricity from the grid, this approach can also be used, but it results in a lot of heat energy being wasted, which is unfortunate and goes against the principle of comprehensive utilization of resources ； The annual electricity consumption of such projects is related to actual production, so it’s hard to say. 2. Your understanding of the production equipment is correct. 3. The process differences between wet quenching and dry quenching of coke: Wet quenching involves using wastewater to extinguish the red coke, which results in a decline in the quality of the coke ； Dry quenching of coke involves using nitrogen to extinguish the red coke while recovering thermal energy, resulting in better quality coke. Dry quenching of coke is more advanced, and new coking projects in the future may require the installation of such dry quenching systems. 4. The annual demand for coking coal in this project is related to the coal blending ratio used in coking plants; it is possible to combine it with other types of coal for coking purposes. According to the available data, 1 ton of coke requires 1.3–1.4 tons of coking coal. The current price of coking coal is around 1,400 yuan per ton, while the price of coke is around 1,500 yuan per ton. Based on this ratio, there is an inversion in costs; such a situation occurred in the fourth quarter of 2008, so it’s not surprising ； As for the project owner, it is said that profits are primarily generated from by-products such as coke oven gas, ammonium sulfate, crude benzene, sulfur, light oil, dephenolized phenol oil, and crude phenol – this is the actual situation; in other words, as the owner stated ； However, it is products such as coke oven gas, crude benzene, and phenol oils that truly generate profits for enterprises.

1\ The engineering design capacity is an annual production of 800,000 tons of coke; it involves the construction of 2×45-hole JNDK55-05 type single-heating ramming coke ovens and 1×100 t/h coke dry quenching unit. In addition, a 50,000-ton benzene hydrogenation plant and a 100,000-ton tar deep processing plant will also be built. ) If 800,000 tons of coke are produced annually, can a production capacity of 50,000 tons for benzene hydrogenation and 100,000 tons for the deep processing of tar be achieved? , What are the main products obtained from the hydrogenation of benzene and the deep processing of tar? Thank you for your guidance!!!

1. This is definitely unattainable, whether it’s tar or benzene hydrogenation. The approximate production volume can be calculated as follows: based on the amount of coal used, the coke production accounts for 75%, tar production accounts for 3.4%, and crude benzene accounts for 1%; you can use the coke production figure to estimate the overall production volume. . . . Of course, it should be noted here that both tar and crude benzene can be obtained as raw materials from other factories for further processing. So if owners consider such production capacity, they might take this aspect into account. 2. The main products of benzene hydrogenation are pure benzene, toluene, and xylene. . Products derived from the deep processing of tar include industrial naphthalene, phenol, light oil, washing oil, anthracene oil, asphalt, etc.

May I ask the original poster: has your project already been approved for initiation?

1. The number of holes is closely related to production capacity; it indicates the number of individual coke production units. Under the same conditions, the greater the number of holes, the higher the production capacity； 2. Coke is produced by heating coal in a carbonization chamber in an air-free environment. The carbonization chamber can be described as a rectangular container; its height can range from 4.3 m, 5.5 m, 6.0 m, 6.25 m, 7.0 m, to 7.63 m ； A 3.1×100t/h dry quenching unit represents a single dry quenching system with a processing capacity of 100 tons of coke per hour; the maximum production capacity of such a unit is 876,000 tons per year, which is not sufficient to reach 1.5 million tons per year or more. To achieve a production capacity of 1.5 million tons per year or higher, two dry quenching units with identical capabilities are required, that is, 2×100t/h dry quenching units. 4. Such projects generally require the installation of generator sets.

According to the entry requirements for the coking industry in 2008, the development of facilities for the deep processing of coal tar and benzene hydrogenation is encouraged; therefore, are such supporting facilities required to undergo separate registration or environmental impact assessments?

I would like to ask further: 1. For example, if the height of the carbonization chamber is set at 5.5 M, what are the production capacities for configurations with 2X45 holes, 2X55 holes, and 2X60 holes respectively? Thank you. 2. Given that the height of the carbonization chamber is 5.5 M, how should a dry quenching device be configured for the aforementioned numbers of holes? This post was last edited by SLBAWY on 2009-3-24 20:55]