CALCIUM CARBIDE FURNACE TO CO



There are nearly 400 calcium carbide manufacturing enterprises in China at present whose total annual productivity exceeds 15 million tons. More than 15 billion m3 calcium carbide furnace tail gas is produced in China every year. It mainly contains CO (75%~90%) which is total If fully discharged, equaling to the waste of 2.4 million tons of standard coal, and emits 12 million tons of CO2 and more than 900,000 tons of dust every year. It is the best way to save the energy, reduce the emission and transform the waste to treasure by reasonably utilizing CO.

Application of PSA-CO technology to the calcium carbide industry

Purification of CO by the PSA-CO technology may obtain the 99% high-purity CO and synthesize the high value-added chemical products, such as MEG, methyl carbonate, acetic acid, methanol, TDI and DMF.

Economic Benefit
More than 75% of the tail gas of calcium carbide furnace is CO. Purification of CO by the PSA technology and synthesis of the high value-added chemical product such as MEG largely reduce the raw material cost of the high-purity CO. The new-type purification device of PIONEER not only utilizes the high value-added tail gas of calcium carbide furnace but also gives a new idea for the development of the technology of synthesis gas-to-MEG.

Successful Case
Xinjiang Tianye Group adopts the unique PSA technology of PIONEER to separate the high-purity CO from the tail gas of calcium carbide furnace to synthesize MEG. As the first industrial device synthesizing MEG by the tail gas of calcium carbide furnace in China, it completely solves the problem of tail gas reclamation. Besides, it not only promotes the emission reduction but also largely reduces the raw material cost of high-purity CO which saves a lot gas generation expenses.
http://www.vpsatech.com/product/calcium-carbide-furnace-to-co.html

Comments

Post a Comment

Popular posts from this blog

Supporting Devices of 200,000 t/y Glycol Project of Tongliao GEM Chemical Co., Ltd.

Image
The 200,000 t/y glycol project of Tongliao GEM is the first new-type coal chemical project of China that produces glycol by the brown coal. It is a high-tech project promoted by the government and has been put into operation in 2010. PIONEER provides the 22,000Nm3/h CO device of  PSA purification , 42,000Nm3/h H2device of PSA purification and 20,000Nm3/h VPSA-O2 device to the project. These three sets of large-scale PSA devices have been stably operating since the start and indexes of the product gas meet the design requirement. It provides the 200,000 t/y glycol project of Tongliao GEM with stable and low-cost gas source to create favorable economic benefits to the customer.
Read more

PSA Oxygen Technology

Image
PSA oxygen technology  is one of the air separating technology for oxygen booming in recent ten years. Compared with traditional cryogenic technology, PSA oxygen technology is known for its low investment, low consumption, low operation-maintenance fee, mild process conditions, simple process flow, high automation, high operation flexibility, short construction duration, and safe performance. Up to now, PSA oxygen technology can replace cryogenic in many circumstances, and the PSA oxygen technology is more economic than cryogenic in running. The main components of air are nitrogen and oxygen, so oxygen can be generated through a selective adsorbent which can separate oxygen from nitrogen in a suitable operation condition. In a pressurized condition, when air flows through adsorption beds with zeolites, nitrogen will be largely adsorbed, while little oxygen will be adsorbed, thus oxygen get enriched. When adsorbent is close to saturation, air will be stopped feeding into the bed,
Read more

PHOSPHORUS OFF-GAS PURIFICATION

Image
The content of CO in the yellow phosphorus tail gas  reaches up to 90%. Yellow phosphorus tails gas belongs to the ore smelting tail gas whose components are complicated and impurities are various. The existence of phosphorus and sulfur in the tail gas utilization may corrode the equipment and shorten the life of the catalyst, so the utilization rate is quite low. The yellow phosphorus resource is abundant in China and deposit reaches 800-1000 thousand tons, which weighs 80% in the world. In absence of the efficiency and advanced purification technique and utilization mode, the yellow phosphorus plant only burns little tail gas to dry the raw material or for the boiler combustion but most of the tail gas is discharged, thus greatly wasting the resource, intensifying the environmental pollution and obstructing the energy saving and emission reduction. Besides, the resource utilization of C1 chemical products requires deep purification of the impurity in the raw gas, but impuriti
Read more