Product introduction
4 radix can be deoxygenated at the same time of CH4 and N2 separation without prior deoxygenation or methane enrichment, with obvious low cost and economic benefit.
Technical indicators:
A, appearance: ï¿ 1.3 mm x 2 -- 4 mm columnar grains
Output: CH4 products
Type CH4 Adsorbent Type CH4 Adsorbent,Pressure Swing Adsorption,Tuning The Adsorption Properties,Methane Absorbent Oxygen Zhejiang Changxing Haihua Chemical Co.,Ltd. , https://www.zjcxhhcms.com
It is understood that formaldehyde in the furniture is exceeding the standard. Tianjin has sampled 242 batches of products in the second quarter, with a pass rate of 97.52%. Among them, 6 kinds of furniture produced by 6 companies failed due to formaldehyde emission or drawer durability test items. Was notified.
The sampling rate of 40 sets of samples such as wooden cabinets, dining chairs and wooden coffee tables sampled by Anhui Quality Supervision Bureau was 70%. From the results, 42% of the problem products were unqualified for formaldehyde emission detection.
The 95 batches of 95 production and distribution enterprises of Shaanxi Provincial Quality Supervision Bureau have a physical quality pass rate of 80%. The main problems are the amount of formaldehyde released, the requirements for metal parts, and the strength of the drawer slides.
It is reported that the amount of formaldehyde released in the problem product is less than 2 times the limit, and up to 5 times. The main reason for the unqualified amount of formaldehyde emission is that some enterprises use inferior artificial boards to reduce costs, use unreasonable adhesives, or use waste building templates in raw materials.
In the list of problem companies published by the quality supervision bureaus of various provinces and municipalities, the reporter found that there are no well-known brands, and almost all of them are products of local small brands. The small furniture brand has become the hardest hit area with excessive formaldehyde emission.
Chen Xiaotai, president of Baiqiang Furniture, said that as early as 2005, the company went abroad and introduced European environmental protection sheets with formaldehyde emission two to three times lower than domestic standards. However, the reporter learned from industry insiders that many small enterprises sacrificed product quality in order to obtain huge profits. The environmental protection grades of materials such as sheet adhesives are not up to standard, or the production process is not strict, resulting in repeated violations of formaldehyde.
Song Guangsheng, director of the National Indoor Environment and Indoor Environmental Product Quality Supervision and Inspection Center, advised consumers to avoid buying furniture with excessive formaldehyde, and first try to buy brand furniture. Secondly, the national furniture consumer goods specification requires manufacturers to identify the formaldehyde emission index of furniture, consumers. Manufacturers can be asked to show.
Type CH4 Adsorbent
Coal bed methane (CBM) is a kind of clean energy with high calorific value and no pollution.
Its main component is methane, which is very rich in resources.
In order to ensure the safety of coal mining, coal bed methane extracted from the mine is mixed with a large amount of air, resulting in 20% to 40% low concentration of coal bed methane, and containing less than 18% oxygen, causing safety hazards for methane concentration, and removing more than 60% nitrogen, which increases considerable difficulty for adsorbent.
By using this adsorption, the mixture of CH4 and N2 from 30% to 70% can be enriched to over 92% with a recovery rate of more than 31.6%, and the mixture of CH4 and N2 from 50% to over 95% with a recovery rate of more than 47%.
CMSCH4 concentration CBM methane adsorbent has the following characteristics:
Effective purification of methane content of coalbed methane is more than 5% (extremely high methane content, obvious effect).
2. It has very strong deoxygenation and explosion-proof functions to ensure the safety of PSA in the process of coal bed gas enrichment;
3. Adsorption at room temperature and low pressure, low energy consumption;
B. Adsorption pressure of ife: 0.2mpa (table pressure)
Specific gravity of c treatment: 0.65g/ml -- 0.65g/ml
Methane concentration in d phase product: greater than or equal to 90%
E phase intensity: 95% or more
Methane yield of f-process products: 40% or more
CH4 purity: 80~99% (V), produced according to different USES and requirements of users.
CH4 yield: 70~95%
Ventilation P: 0.05~ 0.1mpa
Output temperature: normal temperature
Note: the yield of CH4 is related to raw material composition, pressure, product and product H2 purity.
Recently, Shaanxi, Tianjin and other provinces and municipal quality supervision departments issued the second quarter of 2011 product supervision and inspection quality notification, a number of furniture companies produce unqualified products, of which formaldehyde emission exceeded the standard of product quality reasons.