Who has these two processes?

OP, there are many processes for producing synthetic ammonia using coal as a raw material; which one are you interested in learning about? For example, what process is used for gas production? What process is used for desulfurization? What process is used for the transformation? What process is used for decarbonization? What processes are used for refining and synthesis? Please explain clearly so that we can help you!

Yes, make it clear! Also, why aren’t you giving me your contact information? I have the part on the synthesis of ammonia using water-coal slurry!

This post was last edited by “This account is very precious” on 2010-12-16 at 11:43. Reply to 2# 654262293: First of all, thank you! I work in business; understanding the manufacturing process is beneficial for my work. Since we plan to expand the ammonia synthesis project this year, I would like to learn about the processes that have been commonly used in recent years, whether it’s for gas production, desulfurization, or purification – preferably those that are widely used in recent times, as well as co-production processes. Actually, what I most want to understand is the principle. Email: tecsi@vip.qq.com Thank you again!

Reply to 3# chenwenchao0127: Coal water slurry is fine; I also need Texaco and similar products. Email: tecsи@vip.qq.com Thank you!

Friend, let me introduce the ammonia synthesis process using water-coal slurry to produce gas!

Reply to 6# 654262293: I don’t have a general description of the process here; instead, there are many specific steps. I’ll take some time to summarize them, so please wait a moment……

The last edit to this post was made by 654262293 on 2010-12-16 at 12:49. Reply to 6#: The multi-feedstock slurry gasification process (developed and patented by the Northwest Institute of Chemical Engineering) uses pure oxygen and multi-feedstock slurries as raw materials. It employs a fluidized bed reactor to carry out partial oxidation reactions under pressurized conditions without the use of catalysts, resulting in crude syngas whose main components are carbon monoxide and hydrogen, which is then used as feed gas for ammonia synthesis. This unit employs a multi-feedstock slurry gasification process, using coal from Yima, Henan as the raw material. It adopts a quenching process and a three-stage flashing route, and is divided into five sections: preparation, gasification, slag and water treatment, nitrogen compression, and the flare system. The plant is equipped with a mill system, a gasifier system, and a slag and water system. (1) Pulp production process: In the pulp production section, the raw coal is crushed using rod mills, and an appropriate amount of raw water, additives, pH regulators, etc. are added to produce high-quality multi-feedstock pulp that meets the requirements for gasification. This section comprises two coal grinding units, each equipped with a rod mill; the capacity of each mill can account for 75% of the total capacity of the installation. Under normal conditions, both mills operate in parallel. The performance parameters for each mill are as follows: Coal feed (on a dry basis), in kg/h; Flux, in kg/h; Moisture content, in wt%; Multi-material slurry, in kg/h; Concentration of multi-material slurry, in wt%; Additives (25%, based on coal), in kg/h; pH adjuster (40 wt%), in kg/h. Normal values: 30216, 0.0, 8.5, 48909, 62, 362.59, 41.94. Maximum values: 30884, 927, 18.29, 59514, 62. (II) Gasification process: In this process, the multi-material slurry reacts with oxygen under high temperature and pressure, resulting in the production of syngas composed mainly of CO and H2. Dust entrained in the syngas is removed before it enters the shift process, while the slag discharged from the gasifier is cooled in a quench chamber, with the coarse slag being removed from the furnace. Fine slag is removed in the slag-water treatment process. Water in the system is reused. The syngas pressure is 6.27 Mpa(G); (H2+CO) > 78.6 CVOL% (on a dry basis) ； The water-to-gas ratio in syngas is 1.4–1.6 ； Ash content < 1 mg/Nm3 (on a dry basis). The gasifier operates at 6.5 Mpa and 1350–1450°C. At 100% load, the feed rates for a single series of gasifiers are as follows: 40.09 m3/h of multi-feedstock slurry, 18,046 Nm3/h of oxygen, and 53,194 Nm3/h of syngas (on a dry basis) exiting the gasifier’s combustion chamber. The amount of slag produced is 3.92 t/h (on a dry basis). The composition of the syngas exiting the combustion chamber (on a dry basis) is as follows: CO, H2, CO2, CH4, Ar, H2S, COS, CS2 – 45.02%, 33.47%, 20.68%, 0.10%, 0.14%, 0.41%, 0.15%, 0.029%. (III) Slag and water treatment process: The black water resulting from the gasification process is subjected to flashing and sedimentation in the slag treatment process, thereby separating the solids from the dissolved gases. After deoxygenation, the graywater is returned to the gasification process for reuse. The slag water process is a 100% NOC black water flash evaporation and sedimentation system, used for all gasifier and scrubber series. The treatment of graywater employs a three-stage flash process consisting of high-pressure flash, medium-pressure flash, and vacuum flash. The treated graywater has a solid content of less than 200 ppm and is recycled throughout the system. (IV) Physicochemical properties of the product: The syngas produced by the gasification unit is a mixed gas, primarily composed of carbon monoxide (CO), hydrogen (H2), carbon dioxide (CO2), nitrogen (N2), methane (CH4), and hydrogen sulfide (H2S), that is, water gas. It is a colorless, odorless flammable gas with a density of 0.9611–0.9776 kg/m3; when mixed with air, it can easily cause explosions, and its explosion limit ranges from 6.94 to 83.73 VOL%. Due to the high content of carbon monoxide in gas, when inhaled, it binds to hemoglobin in the body, preventing the body from absorbing oxygen and thus causing gas poisoning.

The original poster has quite high expectations – they want everything. What kind of business do you do? Could you introduce it?

Let’s discuss the business more. Does anyone have any new data on methanol production costs?

LZ used to be in the trading business, as can be inferred from their name; now they probably work as a manufacturing subcontractor in the sales field. In other words, they take on part of the work and then subcontract it out. It’s a type of company without a physical presence, and there are many such companies in China.