Datang and Judian Energy sign a cooperation agreement on blue gas technology

Below is a description of the pilot-scale operation of the giant dot blue gas vaporization technology; you can gain an insight into its \"secrets\" from it! Some domestic companies always assume that there are some mysterious technical solutions abroad; in fact, gasification has undergone a long process of research and development, and it is now clear what can be done and what cannot. On one hand, they are extravagant due to having plenty of money; on the other hand, their minds are filled with fantasies. Of course, Americans have no lack of a spirit of adventure; moreover, if there is a challenge that proves difficult to overcome, Americans generally suffer no losses. M. Swanson, A. Henderson: The GreatPoint Energy (GPE) approach to producing synthetic natural gas and hydrogen from coal involves the catalytic gasification of coal and carbon. GPE’s technology “refines” coal by using a novel catalyst to break apart carbon bonds, thereby converting coal into methane (natural gas) that burns cleanly and hydrogen. The mild “catalytic” gasification design and operating conditions employed by GPE result in reactor components that are less expensive, while also yielding methane of pipeline-quality and hydrogen of relatively high purity. This system operates extremely efficiently using low-cost carbon sources such as lignite, subbituminous coal, tar sands, petcoke, and petroleum residues. Additionally, GPE’s catalytic coal gasification process eliminates the problems associated with ash removal and slag formation, reduces maintenance needs, and improves thermal efficiency; as a result, the size of the air separation plant – which accounts for 20% of the capital costs in most gasification systems – is significantly reduced. Pilot-scale gasification facilities operated by the Energy & Environmental Research Center (EERC) were used to demonstrate how coal and catalyst are fed into a fluid-bed reactor along with pressurized steam and a small amount of oxygen, thereby “fluidizing” the mixture and ensuring constant contact between the catalyst and the carbon particles. In this environment, the catalyst facilitates multiple chemical reactions between carbon and steam on the surface of the coal; these reactions produce a mixture primarily composed of methane, hydrogen, and carbon dioxide. The gases produced in this process are sent to a gas-cleaning system where CO2 and other contaminants are removed. In a full-scale system, the catalyst would be recovered from the bottom of the gasifier and reused in the fluid-bed reactor. By-products such as sulfur, nitrogen, and CO2 could be captured and sold to the chemical and petroleum industries, resulting in almost no harmful air or water pollution. This technology also enables the efficient co-production of methane and hydrogen, while simultaneously generating a relatively pure CO2 stream that can be used for enhanced oil recovery or storage. Bench-scale tests conducted in the EERC pilot system, with a throughput of 4 to 38 pounds per hour, showed high methane yields of up to 15 mol%, along with high hydrogen yields of around 50%. These results were comparable to those obtained using GPE’s own catalytic gasification model. Long-term operation was demonstrated using both subbituminous coal from the Powder River Basin and petcoke as feedstocks, with oxygen injection used without causing significant bed agglomeration. Carbon conversion rates exceeded 80% even at temperatures below 1400°F, despite the reactor height being shorter than optimal. The initial designs for GPE’s gasification system required a reactor height that couldn’t be accommodated by the EERC pilot facility. Longer gas-phase residence times would allow more conversion of syngas into methane. Another goal, namely the production of large quantities of highly concentrated catalyzed char for use in catalyst recovery and material handling studies, was also achieved. A Pd–Cu membrane was also successfully tested, producing 2.54 pounds of hydrogen per day – exceeding the desired output of 2.0 pounds per day – when tested with syngas derived from coal that had been cleaned using advanced warm-gas cleaning systems. The membranes did not show any decline in performance after being exposed to this cleaned, warm syngas over a 100-hour period.

In fact, a subsidiary of Datang tried to develop this technology a few years ago, but it was dropped later on.

Wasn’t that technology acquired later by a Chinese company?

Has Datang basically given up its coal-to-gas business? Is this a attempt to make a comeback?

Coal-to-gas production in Keqi is still a Dangdai industry.

http://bbs.hcbbs.com/forum.php?mod=viewthread&tid=251234&highlight=%BB%AA%D2%F8%B5%E7%C1%A6 Huayin Power, which is part of the Great Tang group, invested heavily in this technology for coal-to-gas production a few years ago, but abandoned the project for some reason. I wonder how this blue gas technology has developed so far What are the major advancements?

In times of great change, critical thinking might be the biggest obstacle to innovation; let’s wait and see. Nokia viewed Apple in the same way back then

Does anyone who is familiar with Tangda’s related business areas could give a general overview of the current situation? Thank you.