Selection of advanced desulfurization agents

The selection of a fine desulfurization agent depends primarily on its sulfur capacity and desulfurization efficiency. For removing organic sulfur, normal-temperature hydrolysis agents or conversion-absorption type desulfurization agents can be used. However, most current fine desulfurization agents have a sulfur capacity of only around 4, which results in a short service life. I heard that the sulfur capacity of the desulfurizer at the Dalian Institute of Physical Chemistry might be higher, around 15, but I can’t draw any conclusions since I haven’t used it. This post was last edited by bht11 on 2008-4-29 15:41]

The selection of a desulfurization agent depends mainly on whether the sulfur to be removed is inorganic or organic; generally, inorganic sulfur can be removed using zinc oxide as a desulfurization agent. Organic sulfur needs to be converted into inorganic sulfur using a hydrolyzing agent before it can be removed.

In the current production process of lysoform, high-precision desulfurization is required to protect the methanol synthesis catalyst; typically, the sulfur content in the raw gas after desulfurization is required to be less than 0.1 ppm. The desulfurization process that is widely used and cost-effective in lysoform production is: activated carbon + hydrolysis at moderate temperature + activated carbon + conversion-absorption type desulfurizer. Wuhan Collin Fine Chemical Co., Ltd. has relatively mature technology in this area. Additionally, the sulfur capacity of the advanced desulfurization agent mentioned on the 2nd floor is only around 4%; I wonder where this figure comes from? The sulfur capacity of modern desulfurization agents should be at least 15%. This post was last edited by bht11 on 2008-4-29 15:42]

As you said: activated carbon + hydrolysis at moderate temperature + activated carbon + a conversion and absorption-type desulfurizing agent. What is the difference between this approach and conventional methods for removing organic sulfur? First, activated carbon is used to absorb inorganic sulfur; what is then the concentration of organic sulfur after hydrolysis? After treating with activated carbon, what else will the subsequent desulfurization agent convert? How was Colin’s 15% determined? Could you provide more details? The statement on the 2nd floor is generally correct. It is understood that the step-one desulfurization agent 3019 developed by the Dalian Institute of Chemical Physics can not only completely remove organic sulfur but also eliminate inorganic sulfur simultaneously, without the need for hydrolysis or the use of activated carbon to assist in the desulfurization process. The penetration sulfur capacity is around 12%-17%, while the operating sulfur capacity is 15%-32%. This post was last edited by bht11 on 2008-4-29 15:42]

Agree with the sixth floor. This area is indeed a bit messy. The sulfur capacity reported by everyone is also the sulfur capacity under optimal conditions. It’s difficult to compare without specific information. I am from the manufacturer of activated carbon, 3019, at the Dalian Institute of Chemical Physics. If the poster provides specific data (including parameters such as gas volume, composition, sulfur form, and content), we can provide the amount required, allowing the poster to estimate the costs and make a comparison. I’m not sure which manufacturer is responsible for the 5th floor; we can discuss this if we have the chance. :handshake Last edited by bht11 on 2008-4-29 15:43 in this post]

Is desulfurization possible using an upper hydrolysis tower? Also, what are the components of the desulfurization catalyst?

Hubei Institute of Chemistry – foreigners all use their products