Our Company
C4X Technologies Inc., Toronto, Canada and Green Carbon Technology (Suzhou) Co., Ltd., Suzhou, China were set up by the Team C4X (China Canada CO2 Conversion X) to transform CO2from flue gas into treasure. Based in China, Canada and in the USA, our company will embrace the world’s low-carbon economy worth trillion dollars. This object complies with the trend of green, recycling development with low carbon emission. We are one of the ten finalists of NRG COSIA Carbon-Xprize (https://carbon.xprize.org/prizes/carbon/teams/c4x) and are currently preparing for the final competition at the ITC of Wyoming, USA with four other finalists from USA, Canada, UK and India.
Team C4X is dedicated to the research & development of CO2 utilization technology, including capture, conversion and utilization of industrial flue gas from thermal power plants, mining, cement, steel making, winery, etc. Our focus is the production of high-value basic chemical materials and new energy sources including ethylene carbonate (EC), ethylene glycol (EG), methanol etc. through chemical reactions with our novelty nano catalysts, and the production of supercritical CO2 foamed plastic products.
Carbon dioxide is very stable and usually decompose at temperature over 800℃ and under high pressure. Huge energy consumption makes it uneconomic to decompose. Our breakthrough technologies are able to convert CO2 into ethylene glycol and methanol in 120-180℃ at lower pressure with the help of Nano-catalysts. After more than 10 years of research and development, our team’s experts solved the problem of huge energy consumption in the carbon dioxide conversion! Comparing to the current methods of the synthesis of methanol and diol, the conversion and selectivity rates for methanol is 95-100%, ethylene glycol, up to 95-99%. Out nano-catalysts is economic and can be recycled after filter or centrifugal separation. The green and efficient process with low cost is conducive to industrial production.
Technology
Our core technologies
Our three core technologies in CO2 utilization are:
1) We utilize chemical absorption method to recover low concentration carbon dioxide (12% in flue gas of coal power plant) first by utilizing composite alkali solution as the absorbent. After the recovery of carbon dioxide to more than 95% concentration gas state, it is then compressed, purified, liquefied and distillized with reducing temperature. Liquid carbon dioxide is obtained.
Pilot CO2 Capture System
Pilot CO2 Conversion System
2) Our team has designed a new process for Carbon dioxide conversion. CO2 as raw material, direct synthesis of ethylene carbonate. Compared with the industrial mature, Shell Omega process, our process has a high catalytic activity, good selectivity, and has a 100% atomic economy.
Efficient production of methanol (MeOH) and Ethylene Glycol (EG) via hydrogenation of cyclic carbonates using metal–silica nanocomposite catalysts, which has been developed over ten year’s R&D. Our catalyst system’s major advantages are high efficiency with > 95% selectivity and yield for both MeOH and EG, energy saving, running at 120 - 180 oC, instead of over 500 oC for normal CO2 conversion, and economically feasible with non-precious metal nano-catalysts, compared to cobalt and ruthenium based catalysts.
Ethylene glycol and methanol production process:
Table: Product gas chromatographic data in ethylene glycol and methanol synthesis
3) We have developed one of the most advanced super critical CO2 foaming of polymers with nano cellulose fiber to make super strong and light foamed products with density of 25kg/m3. Materials can be processed are PP, PVC, PS, PET with nano cellulose fiber, including nano wood fiber, straw, flax fiber, etc. The microscopic foaming will use 3% - 20% wt CO2, and 14 - 40 times foamed, foamed product's density 25 - 300 kg/m3, much lighter than other type of foaming and 100% environmental friendly. Currently, either Freon foaming agent, or chemical foaming agent is widely used, the former emits toxic gases, the later emits CO2. With nano fiber added and well dispersed, the compression strength of the final foamed products can be 1000 - 2000 KPa, better than Dow Corning.
Source: C4X Technologies
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