Catalytic Organic Solid Wastes Upgrading Using Natural Gas for Valuable Commodities Production

利用天然气催化有机固体废物升级生产有价值的商品

• 批准号: RGPIN-2019-05322
• 负责人: Song, Hua
• 金额: $ 2.4万
• 依托单位: University of Calgary
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2022
• 资助国家: 加拿大
• 起止时间: 2022-01-01 至 2023-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=746957
• 关键词: Catalytic; Organic; Solid; Wastes; Upgrading

More and more municipal solid wastes have been rapidly generated and accumulated with fast urbanization and industrialization, resulting in increased disposal costs and notable negative environmental impacts. Natural gas (NG), the cleanest energy source among fossil fuels, is an abundant natural resource present in Canada. Due to its chemical inertness and relatively low volumetric energy density, natural gas is currently dominantly used for residential heating and cooking with little use for transportation or chemical production applications. Under such background, the proposed research program aims to develop a novel technology to simultaneously convert both of the aforementioned NG and municipal solid wastes (along with other low cost carbon sources such as low rank coal and agricultural, garden and forest wastes) to valuable liquid commodities (such as high value-added liquid chemicals or fuels). A novel reactor design called Transport Reactor Natural Gas Converter (TRNGC) will be developed in this requested funding period. This innovative reactor is composed of one reaction zone and two consecutive gas cyclones for continuously feeding low cost carbon sources with continuous char/ash removal. A specially designed supported bi-functional catalyst composed of active metal and porous aluminosilicate support will be circulating between gasification/pyrolysis zone and recycle leg to facilitate heat transfer and catalyze gasification/pyrolysis reaction under continuous natural gas flow. After proper condensation for upgraded crude oil collection, the synthetic gas produced from TRNGC will undergo a series of cleanup steps and a water-gas shift reaction to achieve desirable CO to H2 ratio, followed by a liquefaction process under the facilitation of another novel dual-bed catalyst system where syngas will be first converted to a mixture of light hydrocarbons and then form liquid hydrocarbon products based on the synergetic effect existing between methane and higher hydrocarbon at temperature of 350 ~ 450 oC. The whole process is operated under low pressure (<5 MPa), resulting in significant capital and operational cost reductions. The successful implementation of this novel process can divert low cost carbon sources streams nationwide, and contribute to the natural gas utilization, while providing valuable liquid fuels and/or chemicals with significantly reduced greenhouse gas emission. Thus this proposed program has the potential to provide significant economic and environmental benefits, aiding in keeping Canada's leading position in efficient renewable energy utilization and clean energy conversion.

随着快速的城市化和工业化，越来越多的市政固体废物迅速产生和积累，从而增加了处置成本和显着的负面环境影响。天然气（NG）是化石燃料中最清洁的能源，是加拿大拥有的绝对自然资源。由于其化学惰性和相对低的体积能量密度，天然气目前主要用于住宅供暖和烹饪，而无需用于运输或化学生产应用。在这样的背景下，拟议的研究计划旨在开发一种新型技术，以简单地将优先的NG和文化固体废物（以及其他低成本碳源（例如低级煤炭）和农业，花园和森林废物等其他低成本碳源）转换为有价值的液体商品（例如高增值液体化学物质或燃料）。在此要求的资金期间，将开发一种称为运输反应堆天然气转换器（TRNGC）的新型反应堆设计。该创新的反应器由一个反应区和两个连续的气旋组成，可连续喂养低成本的碳源，并连续去除炭/灰分。由活性金属和多孔铝氧化材料组成的特殊设计的双功能催化剂将在气化/热解区和回收腿之间循环，以促进热传递，并在持续的天然气体流动下催化气化/热解反应。经过适当升级原油收集的适当凝结后，TRNGC产生的合成气体将经过一系列的清理步骤和水气体转移反应，以实现可取的CO与H2比，然后在另一个新型的双床催化系统中，将Syngas的液体效果转换为液体水合物的混合物，然后在另一个新型的双重型催化系统中进行液化过程，然后将其混合起来。甲烷和较高的碳氢化合物在350〜450 oC的温度下。整个过程在低压（<5 MPA）下进行操作，从而大大降低了资本和运营成本。这种新型过程的成功实施可以转移低成本的碳源国家，并有助于天然气利用，同时提供有价值的液态燃料和/或化学物质，并显着降低了温室气体排放。该提议的计划有可能提供巨大的经济和环境利益，从而有助于在有效的可再生能源利用和清洁能源转化方面保持领先地位。