Coke oven gas dehydrogenation

Is the question posed by the original poster a bit problematic? I remember that coke oven gas contains a large amount of hydrogen; is it necessary to extract this hydrogen from the coke oven gas? If dehydration is to be carried out, it would be best to first remove the large amount of hydrogen before proceeding with further precise dehydration

Currently, there are two relatively mature methods: one is PSA pressure swing adsorption, a technology that is already highly developed, and the other is membrane separation for hydrogen extraction.

It is recommended to use PSA technology, which is currently very mature both domestically and internationally; there are already countless industrial units using this technology. If you need more detailed information, you can send me a message

In China, the currently mature method for producing hydrogen is PSA technology, although it is costly. The next approach is membrane separation technology, but there are many challenges associated with it. I work in this field as well, and I hope to exchange more ideas on it. QQ: 664352294:handshake

The comprehensive utilization of coke oven gas is a topic worthy of research. Our company has developed a process for converting coke oven gas into LNG, and the first industrial facility in this regard is currently under construction

The process of producing LNG from coke oven gas – what does the LNG process refer to? ? ? ? ? ? ?

Process for producing LNG from coke oven gas. Source: http://www.wefweb.com/news/2009216/0954325480.shtml Through analyses of various factors such as future market trends for the product, process technologies, and investment risks, the Institute of Physical Chemistry of the Chinese Academy of Sciences believes that the low-temperature separation process for producing LNG is particularly suitable for small and medium-sized coking enterprises with a production capacity of less than 1 million tons per year. It is reported that this process utilizes advanced technologies from home and abroad, such as adsorbents for the removal of benzene, naphthalene, and tar; hydrolysis for desulfurization; MDEA for carbon removal; isobaric drying; membrane separation for hydrogen extraction; and nitrogen expansion refrigeration, to separate LNG at low temperatures. The high-purity hydrogen produced during the membrane hydrogen extraction process is also utilized in various ways. The entire process features a low investment scale, a favorable market for the products produced, and no pollution, making it a good solution for small and medium-sized coking enterprises to address the issue of utilizing coke oven gas. 　　A notable feature of this process is that the equipment required has mature manufacturing technologies available domestically, resulting in low investment costs and high economic efficiency. It is estimated that a coal coking project with a capacity of 600,000 tons can be accompanied by an LNG project with a production capacity of 180,000 cubic meters per day, resulting in an annual LNG output of 45,000 tons. Based on current LNG market prices, the investment can be recovered within 3 years. This system has another feature: while producing LNG, it can also supply hydrogen with a purity of over 99%. This portion of hydrogen can be further purified to produce liquid hydrogen products, or it can be fed into hydrogen boilers to provide power and heat for production, or it can be used in the production of other chemicals. 　　Safe operation and no pollution are also major advantages of this process. It is stated that throughout the entire process, except for the decarbonization step which relies on chemical reactions, all other steps involve physical changes ； Throughout the entire production process, no new chemical substances are generated, except for benzene and naphthalene removed during the purification step. The medium-pressure nitrogen cycle cooling system used in the core cooling process offers high safety, as has been fully demonstrated in the Tai’an Shenran 150,000 cubic meters per day liquefied natural gas project. The China Chemical Industry News also published relevant information on February 11, 2009.

I have a few sets here that use pressure swing adsorption; the purity isn’t very high, around 95% I think. :Lol, theoretically it can reach 99%. If a higher purity is needed, other methods would probably be required; I’m not sure about that.

Our company is also planning to install a facility for producing LNG from pyrolyzed gas. May I ask which design institute you work for? Was the first set of industrial equipment built for that factory?