| CAS No.: | 1314-13-2 |
|---|---|
| Formula: | ZnO |
| Classification: | Other Oxides |
| Grade Standard: | Industrial Grade |
| Kind: | Acidic Oxide |
| Quality: | First Class |
| Samples: |
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| Customization: |
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Audited Supplier Ambient-temperature Zinc Oxide Sorbent
1. Product features and scope of application
Zinc oxide sorbent is applicable to deep desulfurization of liquid propylene and industrial feed gases at ambient temperature. It not only absorbs hydrogen sulfide, but has certain conversion and absorption capability for COS in the stream.Overall sulfur(H2S+COS)in the treated stream can be less than 0.1ppm.
2. Physical properties
| Appearance | light blue extrusions |
| Size | Φ4×4~15mm |
| Bulk density | 0.9~1.1 kg/L |
3. Quality norm
| Side crush strength | ≥40 N/cm |
| Attrition loss | ≤ 6% |
| Breakthrough sulfur absorption capacity | ≥10%(wt) |
4 . Operation condition
| Pressure | ambient to 3.0MPa |
| Temperature | 20~50ºC |
| GHSV | 500~1000h-1 |
| LHSV | 2~5 |
| L/D of the sorbent bed | >3 |
| Sulfur in feed stream(mainly H2S) | <10ppm |
| Sulfur at the outlet | ≤0.1 ppm |
No regeneration is needed for spent sorbent. But absorption may continue after the sorbent bed is broken through , until the catalyst is finally saturated with sulfur. For example, feed stream can pass through 1st reactor even when it has been broken through, until it is saturated with sulfur and changed. This lowers sulfur content in the stream to 2nd reactor and makes full play of the absorption capacity of the sorbent in 1st reactor.
5 . Loading
(1). Clean the reactor of any debris and screen out any dust from the sorbent.
(2). Install two layers of stainless wire net of smaller mesh size than the sorbent and then 100mm depth of Φ20~30mm inert balls on grid of the reactor. And again install two layers of stainless wire net of smaller mesh size than the sorbent on top of the inert balls.
(3). Use special tools to load the sorbent evenly into the reactor. Inspect uniformity of the loading. When inner-reactor operation is needed, lay a plate on the sorbent first for the operator to step upon.
(4). Install a layer of stainless wire net of smaller mesh size than the sorbent and 100 depth ofΦ20~30m inert balls on top of the bed to prevent stripping of the sorbent by process stream and ensure uniform distribution of process flow.
6. Start-up and shutdown
(1) Close all inlet and outlet valves before start-up. Then open liquid propylene inlet valve and raise pressure at 0.5MPa/ 10 min.
(2) Open the outlet valve slowly after reactor pressure approaches that of that feed. Run at a quarter load for four hours and analyze outlet sulfur to ensure an outlet sulfur concentration of no greater than 0.1 ppm.
(3) Enhance to half load when outlet sulfur concentration is up to the process requirement and transit to full load operation in several hours.
(4) Close inlet valve first and then close outlet valve to disconnect the reactor from system before shutdown.
(5) Avoid wide scope fluctuation in pressure and load, which may impair the sorbent.
(6) For gaseous feed desulfurization system, purge the system with inert gas (e.g., nitrogen) before start-up or after shutdown. For the rest of procedure, please refer to procedure for T907 Liquid Propylene Desulfurization Sorbent.
7. Transportation and storage
The sorbent is packed in plastic or iron barrels lined inside with plastic bags to avoid moisture or chemical attack.
1. We have over 10 years producing experience, adopt advanced production and inspection equipment,optimize production process, to guarantee and improve product quality.
2. Provide samples free of charge.
3. Factory price, no middleman increases costs.
4. Packaging can be customized according to customer requirements.
5. We provide commercial invoice, packing list, shipping order, COA, health certificate and certificate of origin, etc. If your market has any special requirements, please let us know.
6. We can accept various payment methods, such as L / C, t / T, D / A, D / P, O / A, PayPal, Western Union,etc.
7. Timely delivery. We have good cooperation with many professional freight forwarders. Once you confirm the order, we can send the products to you.
1) Can we print our logo on the product ?
Of course, we can do it. Just send us your logo design·
2) Do you accept small orders ?
Yes. If you are a small retailer or starting up business,We are definitely willing to grow up with you. And we are looking forward to co-work with you for a long term relationship.
3) How about the price? Can you make it cheaper ?
We always take the customer's benefit as the top priority. Price is negotiable under different conditions, we are assuring you to get the most competitive price.
4) Do you offer free samples ? A 5Stars Review = A Free Sample
It's appreciated that you could write us positive reviews if you like our products and service, we will offer you some free samples on your next order.
5) Are you able to deliver on time?
Of course!we specialised in this line for many years,many customer make a deal with me because we can deliver the goods on time and keep the goods top quality!
6) What are your payment terms ? Any third party payment ?
We usually accept T/T, Alibaba trade assurance, Western Union, L/C.
7) Can I visit your company and factory in China?
Sure. You are very welcomed to visit our company in Zibo, China. (1.5H drive way from Jinan)
8) How Can I place an order?
You could just send us inquiry to any of our sales representatives to get detailed order information, and we will explain the detail process.
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Audited Supplier 
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