Straw change gas new rural new energy

In rural areas, straw is often seen as a waste product, frequently burned and causing pollution. However, in Xiaozhou Village, located in Sanshan District, this once-wasted material has been transformed into a clean energy source for over 400 households. The person behind this energy revolution is Chen Luwu, who was busy managing a World Bank-funded project when the reporter met him. Chen Luwu first learned about converting straw into gas through an agricultural TV show called "Gold Land" in 1998 while working at Anqing Kaili Gas Station. Intrigued by the idea, he conducted further research and brought the concept back to his hometown. In 1999, he selected Xiaozhou Village as the site for a foreign investment project, drawn by its well-planned layout and abundant straw resources. According to Chen Luwu, the process of turning straw into gas involves oxidizing materials like straw and rice husks to produce methane, carbon monoxide, and hydrogen—clean combustible gases. On November 23, 2002, he invested over 27 million yuan to build and launch the straw gas station. The villagers’ open-minded attitude made it easier to adopt the new technology, and more than 100 households started using straw gas. However, Chen Luwu noticed that the initial version of the gas had two issues: low heat output and high tar content. To solve this, he partnered with an agricultural research institute. By adding 4 cubic meters of liquefied gas per 100 cubic meters of straw gas, the heat output doubled. As the technology improved, more residents in Xiaozhou began to use it. “Straw gas is great!” many users say. Teacher Liu, one of the first villagers to try it, explained how it saved money and was cleaner than traditional methods. “We used to burn straw and then rely on liquefied gas, but now we just use straw gas. It’s cheaper and more efficient.” He pointed to the blue flame from the stove, saying it was stable and left no black ash. Another villager, Aunt Wang, praised the convenience of the system. “It’s like natural gas in the city—no tanks, just a twist of the knob,” she said. Although there was an initial cost of 600 yuan to set up an account, she found it much more economical in the long run. After 2003, as liquefied gas prices rose, Chen Luwu worked on improving the technology again. His efforts led to a near-zero tar content and a significant increase in calorific value. By 2004, the number of straw gas users in Xiaozhou had grown beyond 400 households. In August 2007, the World Bank launched a series of agricultural development projects in China. Chen Luwu successfully applied for 8.06 million yuan in funding. With this support, he aimed to expand the project further. He calculated that 1 kilogram of straw could produce 0.6 cubic meters of gas and 0.3 kilograms of charcoal, with a low production cost of just 0.2 yuan per kilogram. At 0.9 yuan per cubic meter, the economic benefits were clear. Under his plan, the village would upgrade its underground pipeline network, ensuring every household had access to straw gas. By 2010, over 2,400 villagers were expected to benefit. Additionally, the funds would be used to develop straw gas equipment and explore the market for charcoal, a valuable by-product. Chen Luwu believes the success of the project with the World Bank was no coincidence. He sees it as part of a larger movement toward energy conservation and environmental protection, aligned with the goals of rural modernization. His vision is to make Xiaozhou a model for straw gas technology, eventually spreading it across the province, the country, and even the world.

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